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Product Reviews (30)
Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements Review: Sources of ALA and GLA (Omega-3 and -6 Fatty Acids)
CL Answers (45)
I take a supplement containing a "proprietary formula" which lists many ingredients. Can ConsumerLab test the contents so I'll know the amounts of each ingredient?
Proprietary formulas or blends are often listed on supplements. Learn more about their meaning and safety.
Has the probiotic VSL#3 been changed or discontinued? Is Visbiome a good alternative?
Find out if the probiotic formula VSL#3 has been changed and how it compares with Visbiome. ConsumerLab.com's answer explains.
Do you have any information on SeroVital or any other HGH stimulator?
Learn more about SeroVital and other HGH stimulators in our review article on HGH (Human Growth Hormone) supplements.
Is it better to buy supplements which are combination formulas or single-ingredient?
Find out if combination formulas or single-ingredient individual supplements are better and why.
Which supplements are helpful for age-related macular degeneration (AMD)?
Find out which vitamins & supplements are helpful for macular degeneration (AMD), such as lutein, zeaxanthin, and others used in the AREDS studies.
Is Super Beta Prostate better than other prostate supplements?
Find out if Super Beta Prostate is effective, including clinical evidence and price.
The vision supplement I take is based on the AREDS2 formula, but it contains a lot of zinc -- 80 mg in the recommended daily serving. Is it necessary, and safe, to take this much zinc every day?
AREDS information on the safety of supplements containing high levels of zinc, including vision supplements.
Is it true that there are bits of plastic in drinking water and specialty salts? How concerned should I be?
Microplastics are tiny pieces of plastic that can end up foods and beverages. Learn about microplastics found in drinking water and specialty salts. ConsumerLab.com's answer explains.
I find labels on supplement bottles misleading. For example, an L-theanine label says 200 mg on the front but the back says each pill contains just 100 mg, but a serving is 2 capsules. Is this legal?
Learn more about misleading supplement labels and legality, including labels that say "formulation," "blend," or "complex."
Which supplements help for osteoarthritis of the hip?
Supplements for hip pain and osteoarthritis, such as SAMe, ginger and collagen, may help or reduce pain.
Is bromelain a good alternative to NSAIDs, like ibuprofen, for muscle or joint pain?
Do bromelain supplements have benefits? Learn more about its safety, and if it is a good alternative to NSAIDs like ibuprofen.
How do I choose the best CLA supplement for slimming?
Learn how to choose the best CLA supplements (conjugated linoleic acid) and find out if CLA helps for slimming or weight loss.
Is it possible to get too much vitamin D?
Too much vitamin D can lead to adverse effects, including hypercalcemia (excess calcium in the blood).
I'm taking Lumiday, a supplement to improve mood. It seems to help me but is it safe?
Lumiday info including side effects, drug interactions and reviews. Lumiday is a supplement marketed to improve mood.
Are there any supplements I should avoid when taking acetaminophen (Tylenol)?
Find out if there are any supplements that should be avoided when taking acetaminophen (Tylenol).
Do any supplements help with the coronavirus (COVID-19)? Do supplements like vitamin D, zinc, vitamin C, or herbals work?
Find out if natural remedies & supplements for coronavirus such as zinc, vitamin C, garlic, or elderberry help to prevent or treat COVID-19.
Can vitamin supplements strengthen brittle nails?
Learn more about strengthening brittle nails with vitamin B-7 (biotin), based on clinical evidence.
What is Brain Bright and can it really improve memory or cognition?
Learn more about BrainBright, including clinical studies on memory and cognition, safety, and cost.
What is Lipo-flavonoid and does it work for tinnitus or other ear problems?
Lipo-flavonoid Plus info, including ingredients & reliability of claims to improve ear ringing (tinnitus), vertigo, ear aches, ear infection, and Meniere's disease.
Can bloodroot or "black salve" treat skin cancer? Is it safe?
Bloodroot salve and black salve made from bloodroot and zinc - are they effective and safe treatments for skin cancer? ConsumerLab.com's answer explains.
Do any supplements help for ulcerative colitis?
Find out what supplements & vitamins can help with ulcerative colitis, such as VSL#3, curcumin, aloe or boswellia.
Do any supplements help prevent or reduce eye floaters?
Can eye floaters (vitreous floaters) be treated with supplements like vitamin C, lutein, ginkgo, milk thistle, collagen or hyaluronic acid? ConsumerLab.com's answer explains.
Adrenal Fatigue and Adrenal Support Supplements: Do they work and are they safe?
Find out what's really in supplements for adrenal support and adrenal fatigue, including herbal adrenal support supplements and bovine derived adrenal support supplements. Find out if they really work and if they are safe. ConsumerLab.com's answer explains.
I heard that Theracurmin, a form of curcumin, was shown to help with memory, but it's expensive. Does Theracurmin really improve memory and is it worth it?
Find out if Theracurmin curcumin really improves memory, how it compares to other curcumin formulations, such as Meriva, BCM-95 and CurcuWin, and if it's worth paying more Theracurmin. ConsumerLab.com's answer explains.
Have any supplements been shown to increase women's libido?
Learn more about supplements that may increase women's libido, including DHEA and maca.
Is Theracurmin better absorbed than other curcumin formulas - and can it really help lower my blood pressure?
Theracurmin information. Find out if Theracurmin's nanoparticle curcumin formula is better than other types of curcumin.
Do any supplements help relieve stress?
Are there actually supplements for stress relief and panic attacks? Learn more about holy basil, fish oil, L-theanine, and ginseng.
Does AZO Bladder Control really work for overactive bladder?
AZO Bladder Control information, including results from clinical studies on bladder control, dosage, and safety.
Does heat kill coronavirus (COVID-19)? Can it disinfect face masks and packages?
Find out if heat kills the coronavirus SARS-CoV-2 that causes COVID-19 infection. Learn what temperature kills the coronavirus and more. ConsumerLab explains.
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.
What is lactoferrin and will it really strengthen my immune system?
Info about lactoferrin supplements, clinical evidence for strengthening the immune system, preventing or treating colds, gut health and treating H.
Does Restore (Bionic Sciences LLC) really improve gut health? What is in Restore?
Learn more about Restore, including clinical studies on gut health, dosage, cost, and safety.
Do any supplements help prevent or treat a cold?
Are there supplements that can help prevent or treat cold symptoms? Learn more about zinc, probiotics, vitamin C and more.
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.
My supplement label warns that it contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm, but with no additional information. Do you know why?
Learn more about warning labels indicating that a supplement contains a chemical known to the State of California to cause cancer.
Does OsteoMD improve calcium absorption and increase bone density?
ConsumerLab reviews the evidence for OsteoMD by 1MD, a bone health supplement promoted to slow bone loss and reduce the risk of osteoporosis.
I read on your website that some B-12 vitamins cause diarrhea due to added sugar substitutes like sorbitol. I stopped mine and my diarrhea stopped immediately. Which B-12 doesn't contain sorbitol?
Learn how to avoid gastrointestinal problems with B-12 and other supplements due to added sugar substitutes.
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.
Which supplements help to improve energy and decrease fatigue?
Energy supplements and vitamins - Some can help increase energy and reduce fatigue, including CoQ10, curcumin/turmeric, cocoa, and B vitamins.
What is the difference between CoQ10 and ubiquinol?
Understand the difference between CoQ10 (ubiquinone) and the active form, ubiquinol, and how they are best absorbed. ConsumerLab explains.
What Is Marine-D3 and does it live up to anti-aging claims?
Learn more about Marine-D3, a supplement from Marine Essentials, including evidence from clinical studies on aging.
Which supplements make acid reflux worse? I take many and think some are causing heartburn. Are there any supplements that help treat acid reflux?
Find out which supplements can cause or worsen acid reflux, nausea and GERD, including vitamin B6, arginine, and CoQ10.
I take 1000 mg of a high-absorption curcumin extract. It seems to be working, but would it be safe to take a larger dose?
Is it safe to take high doses of high-absorption curcumin extract? Learn more about these larger doses. ConsumerLab.com's answer explains.
What are the best supplements for depression and anxiety?
Best natural supplements for depression and anxiety, including the evidence for fish oil, vitamin D, probiotics, and herbal supplements for depression such as curcumin (from turmeric) and saffron.
If vitamin K absorption appears to be reduced by other fat-soluble vitamins, like vitamin D, why do some "bone health" supplements combine them? Should they be taken separately?
Should vitamin K be taken separately from fat-soluble vitamins, such as vitamin D?