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B Vitamin Supplements
Read our reviews of B vitamin supplements to find the best B complex, niacin, B-6, B-12, biotin, thiamin and folate, including "methyl" forms such as methylfolate. Get information about dosage, safety, and B vitamins for energy, memory, depression and more.
B Vitamin Supplements Review
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Product Review
Multivitamin and Multimineral Supplements Review
Best Multivitamins In 2023 -- Caution with Gummies
CL Answer
Can biotin supplements really strengthen nails or improve hair? Can other supplements help?
Learn more about strengthening brittle nails with vitamin B-7 (biotin), based on clinical evidence.
CL Answer
Do Sugar Bear Hair Vitamins make hair shine, nails stronger, and help both to grow? They taste good but are super expensive.
Info on Sugar Bear Hair vitamins. Do they make hair shine, nails stronger and help hair and nails grow? ConsumerLab.com's answer explains.
CL Answer
Which vitamins and supplements should be stopped before getting blood work and laboratory tests?
Find out which vitamins and supplements can interfere with blood, urine or stool tests, and imaginging tests. Learn how B vitamins such as biotin, niacin and riboflavin, as well as calcium supplements, St. John’s wort, vitamin C, and others supplements can affect test results, as well as common foods that may interfere with tests.
Product Review
Protein Powders, Shakes, and Meal Replacements Review
Find Out Which Protein Products Passed or Failed Our Tests
CL Answer
Do hair loss supplements, such as Viviscal, Hair La Vie, and Nutrafol, or topical essential oils work?
Vitamins and supplements that may help with hair loss and thinning, including saw palmetto, beta-sitosterol, protein, iron, and vitamin D.
Product Review
Alpha Lipoic Acid Supplements Review
Choose the Best Alpha-Lipoic Acid Supplement — See the Amounts of Active "R-Isomer" We Found
CL Answer
Supplements for multiple sclerosis (MS): Do any supplements reduce symptoms or relapse?
Find out if vitamins or supplements such as ginkgo, fish oil, biotin, vitamins A, C, E, D, and B12, or selenium reduce symptoms or relapse in people with multiple sclerosis (MS).
Product Review
Nutrition Bars & Cookies Review (For Energy, Fiber, Protein, Meal Replacement, and Whole Foods)
Find the Best Nutrition Bar or Cookie. ConsumerLab Tests Reveals Not All Nutrition Bars and Cookies Contain What They Claim.
CL Answer
Can taking too much vitamin B-12 be dangerous? The label on my B-complex states it contains 50,000% of the Daily Value!
Find out the daily value for vitamin B-12 and the potential side effects of taking too much B-12. ConsumerLab explains why taking too much vitamin B-12 can be harmful.
Clinical Update
11/11/2020
Biotin for MS?
High-dose biotin was tried in people with multiple sclerosis (MS) to see if would reverse MS-related disability. Find out if it helped the Biotin section of the B Vitamin Supplements Review. Also, learn about concerns with high-dose biotin and see our Top Picks for biotin and other B vitamin supplements.
Product Review
Olive Leaf Extract Supplements Review
Learn What Olive Leaf Does and the Best Brands
CL Answer
What is Perque Bone Guard Forté? It is safe and effective for bone health?
Find out about the ingredients in Perque Bone Guard Forté, including which ingredients may be beneficial for osteoporosis and bone health and which may be a safety concern.
Product Review
Lion's Mane and Chaga Supplements Review
Read Labels Carefully -- Many Can Mislead
Product Review
Lavender and Tea Tree Essential Oils Review
Oils Tested for Authenticity and Purity
Product Review
Electrolytes & Sports Drinks Review
See Which Sports Drinks, Powders, and Pills Deliver the Right Electrolytes
CL Answer
At-Home COVID Tests: How They Compare and What You Need to Know
Coronavirus (COVID-19) Tests: Where to get COVID-19 tests, including information about free testing, home testing and more. Information about SARS-CoV-2 virus tests, antibody tests and FDA authorized tests.
Clinical Update
10/07/2022
Biotin for Skin Health?
Biotin has been promoted for reducing wrinkles, but does clinical research support this? Find out in the Biotin (B-7) section of our B Vitamin Supplements Review, which also discusses the evidence for biotin for treating brittle nails and hair loss.
Also, see our CL Answer about supplements for reducing wrinkles and tightening the skin.
Clinical Update
12/05/2017
Biotin Interference With Vitamin D Test
Last week we reported that high doses of biotin (found in B complexes and hair and nail supplements) can interfere with certain blood tests. A study recently showed that biotin can also artificially inflate a test for vitamin D. Get the details in the "Biotin" section of the B Vitamin Supplements Review >>
CL Answer
Does CoQ10 reduce wrinkles, increase skin elasticity, or tighten the skin? Are there any other supplements that can help?
Learn about CoQ10 and other supplements, such as collagen and cocoa, for reducing wrinkles and improve aging skin.
CL Answer
Does silica have health benefits? What is BioSil, and can it really increase collagen production and strengthen hair, skin, nails and bones?
Information about the health effects of silica (silicon dioxide) and orthosilicic acid (an ingredient in BioSil), including whether these forms of silicon can really increase collagen production, thicken hair, strengthen nails & bones.
Clinical Update
11/28/2017
Growing Concern with Biotin Causing False Lab Results
Biotin (a B vitamin found in B-complex and hair and nail supplements) can interfere with laboratory results resulting in the missed diagnosis or misdiagnosis of cardiovascular and hormonal conditions, such as Graves' disease (a form of hyperthyroidism). Physicians and lab personnel may be unaware of this interference. For details, see the "Biotin" section of the B Vitamins Review >>
Clinical Update
2/29/2020
Biotin May Skew Many Blood Tests
If you take a high-dose biotin supplement, be aware of the growing list of blood tests with which it may interfere. See the latest information in the Biotin section of the B Vitamin Supplements Review.
Clinical Update
8/20/2016
Biotin Caution
Very high-doses of biotin (vitamin B-7) can cause misleading laboratory results and lead to unnecessary antithyroid treatment, according to a new report. For details, see the Biotin section of the B Vitamins Supplements Review >>
Clinical Update
6/20/2017
Warning: Biotin Can Affect Thyroid Tests
Vitamins that contain megadoses of biotin (vitamin B7) can affect thyroid tests, according to recent studies. This can lead to an incorrect diagnosis of hyperthyroidism and improper treatment. See the "Biotin" section of the B Vitamin Supplements Review >>
Clinical Update
5/22/2018
Hair & Nail Supplements Can Skew Lab Tests
There are reports of high-dose biotin (common in "hair and nail" supplements) causing false readings on blood tests. Be sure to tell your doctor if you're taking high-dose biotin. Get the details in the Biotin section of the B Vitamin Supplements Review.
Clinical Update
8/28/2021
Biotin Interference With COVID Tests
Be aware that taking biotin (vitamin B-7) may interfere with COVID-19 antibody tests. Learn which tests are affected. Also find out about other laboratory tests (including thyroid and cardiovascular tests) that can be affected by biotin.
Clinical Update
6/02/2023
Biotin Caution With Lab & At-Home Tests
High doses of biotin from supplements can interfere with a wide range of laboratory and at-home tests, including those for pregnancy, doping, COVID, and heart attacks. Get the details in the Biotin section of our B Vitamin Supplements Review.
Also see: Which vitamins and supplements should be stopped before getting blood work and laboratory tests?
Clinical Update
9/29/2023
Nail Growth
Does biotin help nails to grow faster? Find out what research suggests, and also learn which topical treatment for hair growth may help nails to grow, in the Biotin section of our B Vitamin Supplements Review, which includes our Top Picks for biotin and other B vitamins.
CL Answer
I thought the B vitamins were all water soluble and did not build up in the body, so you would not build up toxic levels. Am I wrong?
Learn more about water-soluble B vitamins including niacin, B6, B12 and folic acid, and why taking too much of these vitamins can be toxic. See the symptoms of overdose and toxicity from B vitamins. ConsumerLab.com's answer explains.
CL Answer
Are the "% DV" numbers on vitamin supplement labels really based on what I need?
Learn more about percent daily values, including if they are good standards of measure or if better upper and lower limits exist.
Recalls & Warnings
November 09, 2019
Biotin Supplements Can Cause False Lab Test Results
On November 5, 2019, the FDA reminded consumers and health care providers that high amounts of biotin (vitamin B-7), found in many supplements, can significantly interfere with certain lab tests and cause incorrect results that may go undetected.
CL Answer
What is the difference between cysteine and cystine?
Find out the difference between cysteine and cystine amino acids, including where each is found and their functions.
Product Review
Joint Health Supplements for Pets Review (Glucosamine, Chondroitin, MSM & Boswellia)
See Which Pet Supplements for Joint Health Passed Our Tests and Which Didn't!
CL Answer
Which foods are a good source of B vitamins?
Find out which foods are a good source of B vitamins (like folate and B-12) and when you should take Vitamin B supplements.
CL Answer
I'm over 50 and looking to take a vitamin B-12 supplement. Many contain a form of vitamin B-12 called cyanocobalamin, yet I read on the Internet that this form is toxic. Should I be concerned?
Looking to see if the cyanocobalamin form of vitamin B-12 is safe? Read research and safety information on ConsumerLab's report.
CL Answer
How does Athletic Greens’ AG1 compare to multivitamins and Greens powders? Is AG1 worth it?
ConsumerLab reviews the ingredients in AG1, its safety and possible side effects, and how AG1 compares to other products.
CL Answer
Can taking too much vitamin B-6 be dangerous?
Find out if multivitamins contain excessive amounts of B-6, how much B-6 is too much, and symptoms of toxicity and overdose.
CL Answer
Can taking CoQ10 affect my thyroid levels or interact with my thyroid medication?
Learn more about CoQ10 and thyroid medications along with natural thyroid function. ConsumerLab.com's answer explains.
Product Review
Fruits, Veggies, and Other Greens Supplements Review (Including Spirulina and Chlorella)
Avoid Lead in Greens, Problems with Pills, and Don't Give Up Eating Whole Foods.
Product Review
CoQ10 and Ubiquinol Supplements Review
Find the Best CoQ10 and Ubiquinol Supplements and Learn How They Differ
CL Answer
Does nicotinamide riboside (as in Niagen and Basis) really have anti-aging or other health benefits?
Niagen (Nicotinamide riboside) information, including if it actually provides anti-aging or other health benefits. ConsumerLab explores this question.
Clinical Update
1/07/2020
Eggshell Membrane for Hair, Skin, Nails?
Does supplementing with eggshell membrane (which contains collagen and elastin) improve hair, skin, or nails? See what a recent study found in the What It Does section of the Collagen Supplements Review. Also see our Top Picks among collagen supplements.
Product Review
L-Arginine Supplements Review
Choose the Best L-Arginine Supplement. Find Out Which L-Arginine Supplement Passed CL's Tests.
News Release
February 26, 2024
Latest ConsumerLab Survey Shows Growth in Popularity of Magnesium and Several Smaller Supplements
White Plains, New York, February 26, 2024 — A recent survey of more than 10,000 people who regularly use dietary supplements shows that supplements that experienced the greatest absolute growth in popularity during 2023 were pregnenolone (+7.5 percentage points), magnesium (+4.8 pts), berberine (+4.
Recalls & Warnings
January 10, 2024
Spring Valley Biotin & Collagen Liquid Recalled Due to Mold
On December 1, 2023, BioMylz Pvt. Ltd. issued a recall of 24,324 units of Spring Valley Biotin & Collagen Liquid Natural Berry Flavor products due to potential mold contamination. BioMylz is the contract manufacturer for the Spring Valley product, which is a Walmart-owned brand.
Product Review
Menopause Supplements Review (Soy and Red Clover Isoflavones, Black Cohosh) and Progesterone Creams
Choose the Best Menopause Supplement. Find Out Now Which Soy Isoflavone, Red Clover, Black Cohosh, and Progesterone Products Have the Active Compounds You Want!
Product Review
Collagen Supplements Review
See our Top Picks for Wrinkles and Joints
News Release
August 09, 2023
ConsumerLab Tests Alpha Lipoic Acid Supplements and Selects Top Picks
White Plains, New York, August 9, 2023 — Alpha-lipoic acid supplements may modestly improve insulin sensitivity and blood sugar control, reduce symptoms of peripheral neuropathy, and aid in weight control when combined with a low-calorie diet.
CL Answer
What B-vitamin complex do you recommend for older people?
Vitamin B complex supplement recommendations, benefits and top rated brands for older people and all ages.
CL Answer
The maker of my multivitamin says it doesn't include folic acid because too much from supplements can be harmful. Is that true?
Learn more about the harmful effects from too much folic acid, including increased risk of prostate cancer and kidney damage.
CL Answer
Can prenatal vitamins have too much folic acid? Mine has 800 mcg, but isn't that more than what's recommended? Is this dangerous to me or my baby?
Is it possible for prenatal vitamins to have too much folic acid? Find out the correct dosage so that it is not dangerous to babies.
CL Answer
Is it okay to take vitamin D3 and fish oil together?
Find out if taking vitamin D and fish oil is okay, how it effects absorption, and the best way to take vitamin D to improve absorption. ConsumerLab.com's answer explains.
CL Answer
Does tea tree oil work for getting rid of athlete's foot?
Learn more about tea tree oil and its effects on foot fungus (known as athlete’s foot, tinea pedis, or “ringworm” due to the lesion that can occur) and how it can be as effective as some, but not all, over-the-counter antifungal treatments. ConsumerLab explains.
CL Answer
Do collagen or hyaluronic acid supplements really help aging or wrinkled skin?
Find out if collagen & hyaluronic acid supplements really help for aging or wrinkled skin and for skin care.
CL Answer
Can any supplements reverse gray hair?
Nearly 75% of adults aged 45 to 65 are affected by gray hair. Learn about what causes gray hair and find out if any supplements can help.
CL Answer
Risks of Too Many Vitamins & Supplements
Taking too many vitamin supplements -- or taking too much of a particular supplement -- can have short and long-term adverse effects.
CL Answer
Are lozenges and sublingual pills considered dietary supplements?
Learn more about lozenges and sublingual pills (such as echinacea, zinc and B12) including safety warnings.
CL Answer
Is P-5-P really better than "regular" vitamin B6?
Learn more about pyridoxal-5-phosphate (P-5-P) and vitamin B6.
Clinical Update
9/30/2022
Does MSM Help Hair and Nails?
Find out if research supports MSM (methylsulfonylmethane) for improving nails or hair in the MSM section of our Joint Health Supplements Review.
Also see our article about biotin and other supplements for hair and nails.
CL Answer
Does collagen taken as a supplement help with arthritis? I'm seeing it in products for joint health.
Learn more about collagen supplements, including evidence from clinical studies on arthritis and muscle strength and safety.
Recalls & Warnings
May 10, 2021
Collagen & Biotin Supplement Recalled Due to Allergen Risk
On May 6, 2021, Bloommy, Inc. issued a recall of Bloommy Biotin Collagen Keratin Capsules for Skin, Joint, and Hair due to the presence of a fish allergen for the collagen-based ingredient.
CL Answer
5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin
Get 5 tips for finding soap or body wash that won't cause skin irritation. See which soaps we rate best, ingredients to avoid, and phrases on labels that can mislead.
News Release
July 26, 2023
Best Collagen Supplements for Skin and Joints, According to ConsumerLab Tests
White Plains, New York, July 26, 2023 — Collagen supplementation may modestly reduce wrinkles and the appearance of cellulite, and moderately decrease joint and tendon pain and improve flexibility in people with osteoarthritis.
News Release
June 14, 2022
Best B Complexes, B12, and Other B Vitamin Supplements Revealed by ConsumerLab Tests: Beware of High Doses
White Plains, New York, June 14, 2022 — Recent ConsumerLab tests of over 30 popular vitamin B complexes and supplements revealed that four products contained either much less, or much more, of at least one B vitamin listed on the label.
CL Answer
What is C15:0 fatty acid (found in fatty15), and does it have health benefits?
C15:0 fatty acid in fatty15 is promoted for “healthier hair & skin, balanced metabolism, and deeper sleep,” as well as “slowing the aging process.” Find out if it works.
News Release
February 12, 2021
Don't Be Surprised by New Labels on Many Vitamins
White Plains, New York, February 12, 2021 — It took almost four years, but more accurate labels on vitamin and mineral supplements are finally here and consumers should not be surprised to see changes, says Tod Cooperman, M.D., president and founder of ConsumerLab.
CL Answer
Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Information about heart health supplements & vitamins that help with cholesterol, including sterol esters, CoQ10, and vitamin D, and which may be bad for the heart, like calcium.
CL Answer
I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements or foods I should avoid, or be taking, due to this drug?
Is taking certain supplements and hypothyroidism medications bad? Learn which supplements can interact with thyroid hormone medications like levothyroxine (Synthroid), thyroid hormone levels, and laboratory tests.
News Release
June 25, 2019
ConsumerLab Tests Reveal Best B Vitamin Supplements -- 19% of B Vitamin Supplements Fail CL's Tests of Quality
White Plains, New York, June 25, 2019 — B vitamins and complexes are among the most popular supplements sold in the U.S. because B vitamins are essential for a wide range of functions in the body.
CL Answer
I am female and purchased a saw palmetto supplement for hair loss, but the bottle says it is only for men. Is it unsafe for women?
Learn more about the safety of saw palmetto in women with hair loss.
Product Review
Selenium Supplements Review
Choose the Best Selenium Supplement. Find Out If You Need Selenium and Which Supplement Is Our Top Pick.
Clinical Update
10/05/2021
Silica for Dental Implant Inflammation?
Can a form of silica typically promoted for hair, skin, nail and bone health also help reduce inflammation and bone loss around dental implants? See what a recent study found in our updated article about Silica Supplements.
CL Answer
Which is the best pulse oximeter for home use?
Best pulse oximeter for home use (COVID-19, asthma and COPD). Differences between home use and FDA-approved medical pulse oximeters.
CL Answer
What are the health benefits of amla and is it safe?
Learn about amla (Indian gooseberry), including its potential health benefits and possible safety concerns.
CL Answer
Which supplements may help with PCOS (polycystic ovarian syndrome)?
Many supplements are promoted to help treat symptoms of PCOS (polycystic ovarian syndrome), but do they really work? See the clinical evidence for inositol (myo-inositol and D-chiro-inositol), alpha lipoic acid, vitamin B-12, folic acid, vitamin D and more.
CL Answer
Is there a multivitamin that contains only the recommended daily vitamins and minerals? Most that I have looked at contain more.
Are there any multivitamins that contain only the recommended daily vitamins and minerals? Choose the best multivitamin based on age & gender.
CL Answer
What are "broad-spectrum micronutrient" supplements, and do they have greater health benefits than multivitamin/multimineral supplements?
Learn about "broad-spectrum micronutrients" and how they compare to multivitamin/multimineral supplements.
CL Answer
Are there side effects from collagen supplements?
Find out if there are collagen side effects from supplements (collagen hydrolysate, collagen peptides, etc.) such as nausea, constipation, skin rash and others. ConsumerLab.com's answer explains.
CL Answer
What are phytoceramides? Do phytoceramide supplements really work to improve aging skin?
Phytoceramide supplement information, including what they are, what they claim to do, and if they have anti-aging effects.
CL Answer
Contamination of Dry Shampoos with Benzene — What You Need to Know
Benzene, a carcinogen, has been detected in several dry shampoo aerosol sprays. Find out which dry shampoos were found to contain benzene and how much was in each one, plus how tips for reducing your exposure to benzene.
CL Answer
Do vitamin patches, such as for B12 or multivitamins, really work? How about those from PatchMD?
Do vitamin B12 Patches like PatchMD really work? Can you absorb vitamin B12 through patches?
CL Answer
What are the health benefits of D-ribose and is it safe?
Find out if D-ribose supplementation is beneficial for heart failure, exercise performance, and fibromyalgia and learn if it is safe.
CL Answer
What are the health benefits of bovine colostrum and is it safe?
Bovine colostrum is promoted for boosting immunity, preventing and treating diarrhea, and improving gut health, but does it really work? See the clinical evidence for bovine colostrum, including doses that have been used, as well as safety concerns, cost considerations, and the difference between regular bovine colostrum and hyperimmune bovine colostrum.
CL Answer
What are the side effects of glucosamine and chondroitin?
Learn the side effects of glucosamine and chondroitin supplements for joint health and joint pain, including stomach upset, headache, and many others. ConsumerLab.com's answer explains.
News Release
February 23, 2017
ConsumerLab.com Reveals Best and Worst B Vitamin Supplements and Why Current Labels Often Mislead
White Plains, New York, February 24, 2017 — B vitamins and complexes are popular supplements, but labels often mislead, says a new report from ConsumerLab.com which tested, reviewed, and compared 49 supplements from the U.S.
CL Answer
What are the symptoms of vitamin D deficiency?
Learn about the symptoms of vitamin D deficiency, such as soft or weak bones, bone, joint and muscle pain, depression, insomnia, hair loss and others, and find out how much vitamin D you need. ConsumerLab.com's answer explains.
CL Answer
What is vitamin B12 and how much do I need?
Vitamin B12 dosage varies depending on your age, gender, and various other factors. Our CL Answer explains why B12 is important, the recommended dosages, deficiency, health benefits, and the best form.
CL Answer
Is there a risk of liver toxicity with certain supplements?
Find out if there is risk of liver damage from supplements such as green tea, niacin, red yeast rice and vitamin A.
CL Answer
What is the best sunscreen based on safety and efficacy?
Two different carcinogens, benzene and benzophenone have been found in popular sunscreens. These cancer-causing compounds are not listed on labels. Get the details and find out which sunscreens have been found to contain benzene and benzophenone.
Clinical Update
11/07/2023
Does fatty15 work?
Does pentadecanoic acid (C15:0 fatty acid), found in the supplement fatty15, slow aging, or improve metabolism, sleep, hair or nails? Find out in our new article about pentadecanoic acid.
Clinical Update
1/05/2024
Getting C15:0 Fatty Acid from Food?
Can a person get a clinically relevant dose of C15:0 fatty acid (in the supplement fatty15 promoted for hair, nails, sleep and aging) from food? Find out in the Getting C15:0 fatty acid from food section of our article about C15:0 fatty acid.
Clinical Update
11/04/2022
Colloidal Silver & Discoloration
Regular ingestion of colloidal silver can cause a permanent change in skin color and, as recently reported, discoloration of nails. Learn more in our article about colloidal silver.
Clinical Update
1/28/2022
Symptoms of Vitamin A Deficiency
Although not common, be aware of signs of vitamin A deficiency involving the eyes, skin, and nails, as exemplified by a recent case. Get the details (including medical conditions which can cause it) in the What It Does section of our Vitamin A Supplements Review. Also see our Top Picks among vitamin A supplements.
Recalls & Warnings
June 12, 2013
Biotin Supplement Found To Contain Only 4% to 5% of Labeled Amount
On May 22, 2013, the FDA issued a warning letter to Metaugus, Inc., following a facility inspection which found the company’s BIOTIN 3,000 mcg to be misbranded. The product's label was found to be false and misleading, and did not provide information required by federal regulations.
News Release
December 06, 2016
Which Brands of Alpha Lipoic Acid are Best? -- ConsumerLab.com Tests Lipoic Acid Supplements for Quality, Identifying Top Picks
White Plains, New York, December 6, 2016 — Alpha-lipoic acid supplements may improve insulin sensitivity and blood sugar control in people with type 2 diabetes, reduce symptoms of diabetic peripheral neuropathy, and enhance weight loss when dieting.
Clinical Update
11/04/2020
Symptoms of Zinc Deficiency
Zinc deficiency can cause a wide range of problems involving the skin, hair, mouth, and immune system. A recent report showed that it can also cause an eczema-like rash. Get the details and learn about the symptoms of zinc deficiency in the What It Is section of our Zinc Supplements and Lozenges Review. Also see our Top Picks for zinc supplements and lozenges.
Clinical Update
1/12/2024
How to Take C15:0 Fatty Acid
Should C15:0 fatty acid (in fatty15, which is promoted for improving hair, skin, and sleep and for slowing aging) be taken on an empty stomach or with food? Find out in the How to take section of our article about C15:0 fatty acid.
Also, learn whether C15:0 fatty acid is "essential," as some claim.
Clinical Update
9/29/2023
Allergic Reaction to Minoxidil
Some people have allergic skin reactions to minoxidil liquid. Learn why and how to avoid it in our article about hair growth.
Clinical Update
1/11/2022
Supplement for Thinning Hair?
A reader asked if taking Hair La Vie Clinical Formula can help with thinning hair. Find out in our updated article about Supplements for Hair Loss.
Clinical Update
8/22/2023
Selenium & Hair
Although an essential nutrient, very high intake of selenium can cause hair to fall out, and a recent case report highlighted the need to consider how much selenium one gets from foods before supplementing with selenium. Get the details in the Concerns and Cautions section of our Selenium Supplements Review.
Also see our article about hair growth to find out which other supplements can cause hair to fall out.
Clinical Update
7/28/2023
Amla for Hair?
Find out if taking amla syrup boosted hair growth in women losing hair in the Health Benefits section of our article about amla.
Also see our article about supplements for hair.
Clinical Update
8/04/2023
Black Currant or Caffeine for Hair?
Does black currant seed oil, or its constituent gamma-linolenic acid (GLA), increase hair growth? Find out what research suggests in the GLA section of our ALA and GLA Supplements Review, which includes our Top Pick for black currant seed oil.
Also find out if applying caffeine to the scalp increases hair growth and reduces shedding in our article about supplements and topicals for hair.
Clinical Update
4/09/2024
Vegamour for Hair?
Vegamour GRO Hair Serum is marketed for making hair thicker and fuller but is there any clinical evidence to support this claim? Find out in our article about supplements for hair.
Clinical Update
4/19/2024
Chitosan for Hair?
Can applying chitosan to hair help it grow? Find out what research suggests in our article about supplements for hair.
Also, find out which antidepressants are most and least likely to be associated with loss of hair.
Clinical Update
1/13/2023
Blackseed Oil for Hair?
Can supplementing with black seed oil, or applying it to the scalp, increase hair thickness and slow shedding of hair? Find out in our updated article about supplements for hair.
Clinical Update
1/27/2023
Fish Oil & Hair
A diet extremely high in fish oil caused hair loss in a recent study in mice. Should this be a concern for people? Find out in the Concerns and Cautions section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.
Also see: Do hair supplements, such as Viviscal, Hair La Vie, and Nutrafol, or topical essential oils work?
Clinical Update
12/06/2022
Hair Supplement Benefits?
Does research support the use of hair supplements such as Forti5, Lambdapil, or Nourkrin for treating thinning of hair? Find out in our updated CL Answer about supplements, topicals and medications for hair.
Clinical Update
10/21/2022
D-mannose for Gray Hair?
In response to our article Can any supplements reverse gray hair?, a CL member commented that their white hair began growing black roots after taking D-Mannose. Is there evidence that D-Mannose can affect hair color? See our response.
Clinical Update
5/19/2023
NourishVita for Hair?
Does NourishVita Hair, Lash, & Brow Growth Supplement work? Find out in our article about supplements for hair.
Clinical Update
9/20/2022
Medications & Losing Hair
We’ve updated our article about supplements for hair to include a list of medications that may cause hair to fall out. Also find out which vitamin and mineral deficiencies can also cause this problem.
Clinical Update
5/05/2023
Melatonin for Hair?
Does applying melatonin to the scalp help prevent hair from falling out? Find out what research suggests in the Other Uses section of our Melatonin Supplements Review, which includes our Top Picks among melatonin supplements.
Also see our article about supplements for hair.
Clinical Update
10/28/2022
He Shou Wu (Fo-Ti) for Darkening Gray Hair?
Two CL members reported reversing their gray hair by supplementing with Polygonum (He Shou Wu or fo-ti). See the evidence, as well as risks, for this herb in our article about supplements for gray hair.
Clinical Update
10/28/2022
Medications & Losing Hair
A CL Member asked if lamotrigine, prescribed for seizures and bipolar disorder, can cause hair to fall out. The answer is yes -- it is among a number medications and supplements that can affect hair growth.
Clinical Update
12/16/2022
Colostrum for Hair?
Can taking bovine colostrum (such as Armra Colostrum) promote the growth of hair? Find out what research suggests in our updated CL Answer about supplements for hair.
Also see our CL Answer about health benefits of bovine colostrum.
Clinical Update
11/08/2022
L-lysine For Hair?
Can supplementing with L-lysine help slow or reverse hair shedding? Find out what research suggests and who might benefit in our updated CL Answer about supplements for hair.
Clinical Update
7/01/2022
Shampoo for Hair Growth?
Is there evidence that shampoos like d'or Hair Thinning Therapy Shampoo or Nioxin really work? Find out in our updated CL Answer about supplements and topical treatments for hair.
Clinical Update
8/23/2022
Oral Minoxidil for Hair?
Use of minoxidil as an oral treatment for hair growth is gaining in popularity - although it's not an FDA approved use of this drug. Learn if it works, dosage, and side effects in our CL Answer about supplements and topical treatments for hair.
Clinical Update
6/01/2022
Help for Hair Growth?
Is there evidence that applying onion juice, castor oil, rice water, or aloe vera to the scalp aids in hair growth? We’ve added information about these approaches to our article about Supplements for Hair.
Clinical Update
6/03/2022
Nutrafol for Hair?
Is Nutrafol beneficial for hair growth? Get the details in our article about Supplements for Hair.
Clinical Update
10/18/2022
Can any supplements reverse gray hair?
Gray hair affects nearly 75% of men and women between the ages of 45 and 65. Find out if there are supplements that can help in our new article: Can any supplements reverse gray hair?
Clinical Update
10/07/2022
Topical Dutasteride for Hair Loss?
Is the prostate drug dutasteride effective for treating loss of hair when given topically, like minoxidil? Find out in our article about Treatments for Hair.
Clinical Update
8/30/2022
Getting Minoxidil for Hair
A CL Member asked how to get low-dose minoxidil (for hair growth), since it usually comes in higher-dose tablets. Find out in our article about supplements and treatments for hair.
Clinical Update
4/23/2024
Hair Devices & Safety
Can low-level light therapy (LLLT) hair devices such as Theradome or Capillus cause eye damage? Find out in our article about hair supplements and devices.
Clinical Update
4/02/2024
Laser Caps for Hair?
Do low-light laser caps and helmets such as Capillus and Theradome really help to grow hair? Find out in our article about supplements for hair.
Clinical Update
11/14/2023
Supplement for Hair?
Does supplementing with Ceramosides, a product that contains ceramides and other sphingolipids, slow loss of hair among women? Find out what a recent study showed in our article about supplements for hair.
Clinical Update
11/17/2023
Saw Palmetto for Hair?
Does taking saw palmetto orally or applying it to the scalp help reduce hair shedding in men and women? Find out what a recent study found in the Saw Palmetto section of our Prostate Supplements Review.
Also see our article about supplements and shampoos for hair.
Clinical Update
8/18/2023
Blood Pressure Meds & Hair
Be aware that different types of blood pressure medication have different effects on hair growth. Get the details in our article about hair growth.
Clinical Update
3/25/2017
Right Dose of Vitamin D to Reduce Falls
As we've reported in the past, vitamin D can reduce falls in older people, but too much can increase falls. A new study helps nail down the ideal dose and blood level to reduce falls. For details, see the "What It Does" section of the Vitamin D Supplements Review >>
Clinical Update
8/10/2021
Pulse Oximeter Accuracy
Can you get an accurate pulse oximeter measurement while wearing nail polish?
Also learn how to get the most accurate reading with pulse oximeters and see our choice for best home pulse oximeter.
Clinical Update
5/25/2021
Does Creatine Cause Hair Loss?
Find out if creatine supplements cause hair loss. See the Concerns and Cautions section of our Muscle & Workout Supplements Review. Also, see our Top Picks for creatine supplements.
Clinical Update
4/22/2022
Rosemary for Hair Loss?
Does applying rosemary oil to the scalp reverse male pattern baldness? Find out what research shows in our updated answer about hair loss supplements.
Clinical Update
3/01/2022
COVID-19 and Hair Loss?
Can COVID-19 cause hair loss? Find out in How to You Take Care of Yourself After You’ve Had COVID-19.
Clinical Update
4/14/2023
Nutrafol Complaint
A federal complaint was recently filed charging that Nutrafol hair supplements are not “clinically proven,” as advertised, and alleging misleading online reviews. Get the details in our updated article about supplements for hair.
Clinical Update
4/12/2024
Oral vs. Topical Minoxidil
How does taking low-dose minoxidil as a pill compare with topical minoxidil for hair growth? See what a recent study found in our article about supplements and treatments for hair.
Recalls & Warnings
May 23, 2013
Maker of Liver Detox and Insulin Supplements Warned For Drug Claims
On April 24, 2013, the FDA issued a warning letter to Glucorell, Inc.
News Release
July 27, 2016
ConsumerLab.com Helps Consumers Make Sense of the FDA's Updated Daily Values (DV) for Vitamins and Minerals
White Plains, New York, July 27, 2016 — Daily Values (DV) for certain vitamins and minerals have been changed by the FDA, as part of the agency's revised rules for nutrient and supplement facts labeling. The changes went into effect on July 26, 2016.
Recalls & Warnings
September 01, 2022
Elite One Source Nutritional Services Warned for Manufacturing, Labeling Violations
On August 5, 2022, the FDA issued a warning letter to dietary supplement manufacturer Nutritional Laboratories International, Inc. (DBA Elite One Source Nutritional Services, Inc.
Recalls & Warnings
November 28, 2022
Seller of Joint Health, Collagen Protein and More Warned for Drug Claims
On November 14, 2022, the FDA issued a warning letter to The Truth Company, LLC (parent company of Kinobody, LLC and UMZU, LLC) following inspection of the company’s websites which found statements about its Betaine, Immune, Redwood, Sensolin, Thyrite, zuRelief, Kino Aminos, Kino Collagen ...
News Release
September 27, 2012
ConsumerLab.com Reveals How Much Caffeine is in Energy Drinks -- Also Finds Some Drinks and Dietary Supplements Don't Contain Claimed Amounts of B Vitamins
White Plains, New York — September 27, 2012 — Energy shots and drinks are promoted to keep you alert and energized, attributing their effects to special formulas often "packed with B vitamins and nutrients to make it last," as a commercial for 5-hour Energy proclaims.
Recalls & Warnings
December 06, 2021
Fountain of Youth Formula Collagen Protein Recalled
On December 3, 2021, BUBS Naturals issued a voluntary recall of certain lots of the company's Fountain of Youth Formula Collagen Protein because it may contain milk.
Clinical Update
8/26/2022
Hair Growth Compared
We received and answered the following questions this week:
Clinical Update
9/16/2022
A Caution with Low-dose Minoxidil
Although rare, be aware that serious side effects due to pharmacy errors have been reported with low-dose oral minoxidil preparations. Get the details in the How to get low-dose oral minoxidil section of our CL Answer about supplements for hair.
Clinical Update
10/14/2022
Side Effect of Low-Dose Oral Minoxidil
A case of severe fluid buildup was recently reported in a woman taking low-dose minoxidil. Get the details, and learn what some doctors now recommend when starting low-dose oral minoxidil treatment in our article about hair treatments.
Clinical Update
4/05/2024
Swelling from Minoxidil
Even when used topically, minoxidil may cause swelling of the hands and feet. Learn the factors that increase this risk, in our article about supplements and other treatment options for supplements and other treatment options for hair growth.
Clinical Update
3/29/2017
Vitamin E/Selenium & Alzheimer's
A long-term study among men in the U.S. found that giving high doses of vitamin E and/or selenium did not significantly affect their risk of developing dementia. The study was part of a larger study which found that these supplements increased the risk of prostate cancer, type 2 diabetes, hair loss, and dermatitis. For details, see the "Alzheimer's disease/dementia" section of the Selenium Supplements Review >>
Clinical Update
3/21/2017
Problem With Aloe Gel
We received a report from a consumer who used a popular aloe gel on her hair, with disastrous results. The product had failed our tests for aloe and listed as "Not Approved" in our Review. For details, see the Updates near the top of the Aloe Liquids, Gels and Supplements Review >>
Recalls & Warnings
September 08, 2020
FDA Warns Seller of Multivitamin for Manufacturing Violations
On August 14, 2020, the FDA issued a warning letter to Revival Products, Inc.
News Release
October 26, 2010
ConsumerLab.com reports deficiencies in some B-complex supplements and more caffeine than expected in "shot-sized" B vitamin "energy" drinks
White Plains, New York — October 26, 2010 — Tests of B vitamin supplements, including B-complexes and shot-sized energy drinks, revealed problems with the quality of 4 out of 18 products selected for review by independent testing organization ConsumerLab.com.
News Release
September 10, 2007
Tests of B-vitamins by ConsumerLab.com finds several short on folic acid — New report covers B-complexes, thiamin, niacin, B-6, B-12, biotin and folic acid supplements
WHITE PLAINS, NEW YORK — SEPTEMBER 10, 2007 — Half of the B-complex supplements recently selected by ConsumerLab.com for testing were found to lack the total claimed amounts of folic acid, an essential nutrient also known as vitamin B-9.
Recalls & Warnings
July 01, 2015
Undeclared Drugs Found In Male Enhancement Supplements
On June 10, 2015, the FDA issued a warning letter American Lifestyle, following tests which found the company's sexual enhancement supplements Vicerex and Sudibil-Xr to contain the undeclared drugs propoxyphenyl thioaildenafil and tadalafil.
Recalls & Warnings
December 20, 2021
Pantene, Herbal Essences, & Other Brands of Dry Shampoo and Conditioner Recalled Due to Benzene
On December 17, 2021, Procter & Gamble issued a recall of 26 aerosol spray dry shampoos and conditioners from six brands, including Aussie, Herbal Essences, Hair Food, Old Spice, Pantene, and Waterless Hair Care, because some of the products were found to contain benzene.
News Release
March 30, 2005
ConsumerLab.com finds most B-vitamins of high quality but three lacking in ingredients — Test Results for 41 Products Reported Along with Information on Use
WHITE PLAINS, NY — MARCH 30, 2005 — ConsumerLab.com reported test results today for B vitamin supplements that it recently purchased in the U.S. and Canada.
Recalls & Warnings
June 19, 2023
A&Z Pharmaceutical Warned for Promoting Calcium & Vitamin D for Hair Loss, Osteoporosis & Cancer
On June 1, 2023, the FDA issued a warning letter to A&Z Pharmaceutical, Inc. following inspection of the company’s website and social media, which found statements about the company’s Chewable Calcium 600MG with Vitamin D for Kids in Orange Flavor products to be drug claims.
Recalls & Warnings
November 02, 2012
Manufacturer of Prostate, Inflammation and Cholesterol Supplements Warned For Drug Claims
On October 15, 2012, the FDA issued a warning letter to Ortho Molecular Products, Inc. for making drug claims about the following dietary supplements: Candicid Forte, Inflamma-bLOX, Lipitrol, Mucosagen, Prostatrol Forte, Resvoxitrol, Paracid Forte, VascuPak HTN and Lithium Orotate.
Recalls & Warnings
October 24, 2022
Dove, Suave, Tresemme & Other Dry Shampoos Recalled Due to Benzene
On October 18, 2022, Unilever issued a recall of 19 dry shampoo products including Dove, Suave, and Tresemme after an internal investigation found the products to contain benzene. According to Unilever, the propellants of these products were the source.
Recalls & Warnings
April 25, 2022
Some OTC Skin Lighteners Contain Potentially Harmful Ingredient, Warns FDA
On April 19th, 2022, the FDA issued warnings to 12 companies for selling over-the-counter (OTC) skin-lightening products containing hydroquinone.
Recalls & Warnings
June 13, 2022
“Natural” and OTC Mole, Skin Tag Removal Products Can Be Dangerous, Warns FDA
On June 9, 2022, the FDA warned consumers not to use “natural” or over-the-counter (OTC) products promoted to treat or remove moles, skin tags, and seborrheic keratoses because they can contain potentially dangerous concentrations of salicylic acid or other harmful ingredients.
Recalls & Warnings
September 10, 2012
Maker of Concussion Recovery Supplement Warned For Making Drug Claims
On August 28, 2012, the FDA issued a warning letter to Trinity Sports Group, Inc. after a review of the company's websites found statements about Neuro Impact Concussion Response Formula constituted drug claims not permitted on supplements.
Recalls & Warnings
June 16, 2020
FDA Warns Four Companies for Unsafe "Homeopathic" Injectables
On June 16, 2020, the FDA issued warning letters to four manufacturers of unapproved injectable drugs labeled as homeopathic.
Recalls & Warnings
April 17, 2020
Seller of Vitamin D, MSM, Selenium & More Warned for Drug Claims
On March 31, 2020, the FDA issued a warning letter to KetoKerri LLC following a review of the company's website, which found statements made about some of the company's products, including Dr.
Recalls & Warnings
June 03, 2008
Selenium Toxicity from a Supplement
The June 2008 issue of Annals of Internal Medicine provides a recent case report describing the symptoms of a woman and her husband after taking a liquid supplement found to contain excessive selenium.
Recalls & Warnings
September 05, 2014
Seller of "Nerve", "Cleanse" and Probiotic Supplements Warned for Drug Claims
On July 30, 2014, the FDA issued a warning letter to Plexus Worldwide, Inc., following a review of the company's website and product labels, which found statements made about Fast Relief, BioCleanse and ProBio5 to be drug claims.
Recalls & Warnings
May 14, 2014
Maker of Mood, Smoking Cessation Supplements and More Warned for Violations, Drug Claims
On April 17, 2014, the FDA issued a warning letter to CDJ Holding, Incorporated, d.b.a.
Recalls & Warnings
March 15, 2013
Maker of Liquid Supplements Warned For Manufacturing Violations and Drug Claims
On January 31, 2013, the FDA issued a warning letter to Liquid Health, Inc.
Recalls & Warnings
November 21, 2014
Seller of Diabetes, Prostate Supplements and More Warned for Manufacturing Violations, Drug Claims
On October 7, 2014, the FDA issued a warning letter to dietary supplement distributor Windmill Health Products, LLC, following a facility inspection which found the company's products, including Nutri-Betic caplets, Vita-betic caplets, ProstrinRx tablets, Polyflavanol capsules, and Glucoflex Joint ...
Recalls & Warnings
November 06, 2014
Seller of Cholesterol, Arthritis Supplements and More Warned for Drug Claims
On October 17, 2014, the FDA issued a warning letter to Vitamins Direct (USA) and Golden Pride, Inc., which distribute Flexezy and Physician's Signature brands of dietary supplements, following a facility inspection which found statements made about certain supplements to be drug claims.
Recalls & Warnings
October 01, 2016
No Evidence Supplement Can Reverse or Prevent Gray Hair, Says FTC
On September 23, 2016, the FTC announced a U.S. district court has issued a judgement prohibiting the makers of Grey Defence dietary supplements from making claims the products can reverse or prevent grey hair, unless they are not misleading and are supported by reliable scientific evidence.
Recalls & Warnings
May 20, 2015
Supplements to Eliminate Gray Hair Not Supported by Science, Says FTC
On May 13, 2015, the FTC announced marketers of GetAwayGrey and Rise-N-Shine, dietary supplements promoted to reverse or prevent gray hair, have agreed to settle charges that claims made about the products are not supported by science.
