Showing Results for Nails
Product Reviews (6)
CL Answers (20)
Can vitamin supplements strengthen brittle nails?
Learn more about strengthening brittle nails with vitamin B-7 (biotin), based on clinical evidence.
Do biotin supplements really improve hair and nails?
Does Biotin really work for hair and nails? Find out about strengthening and growth for hair and nails.
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 the difference between cysteine and cystine?
Find out the difference between cysteine and cystine amino acids, including where each is found and their functions.
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.
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.
What are the signs of iron deficiency anemia?
Find out the signs and symptoms of iron deficiency anemia, such as fatigue, shortness of breath, rapid heartbeat and others.
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.
Do hair loss supplements work, such as Viviscal?
Vitamins and supplements that may help with hair loss and thinning, including saw palmetto, beta-sitosterol, protein, iron, and vitamin D.
How much bone broth do I need to consume in order to get a benefit?
Bone broth daily consumption information and benefits, including how much protein and collagen ConsumerLab found in popular products. ConsumerLab.com's answer explains.
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.
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.
Is there cause for concern with "gummy vitamins?" There are many different gummies out there. Are some better than others?
Learn more about gummy supplements, including those for multivitamins, vitamins C and D, calcium, and B vitamins.
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.
Which supplements can help treat anemia? Can any supplements cause a low red blood cell count?
Find out which vitamin and nutrient supplements can help prevent and treat anemia in people who are nutrient deficient and learn which supplements may cause low bleed cell counts, especially when used in excess.
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.
I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements 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.
What are the benefits of grape seed extract?
Learn about the health benefits of grape seed extract, and find out it improves venous insufficiency, leg swelling, swelling after surgery, or can help to lower blood pressure.
Which supplements are best for seasonal allergies?
Find out which supplements are best for allergies and can help reduce seasonal allergy symptoms, including bromelain, curcumin, vitamin D, and CLA.
Are supplements such as Thyroid Care Plus helpful for hypothyroidism? Can supplements worsen thyroid function? And what is nascent iodine?
Learn about supplement ingredients such as iodine, selenium, zinc, acetyl-l-carnitine, ashwagandha and guggul used for thyroid conditions and find out if they are beneficial. Also learn why ingredients such as alpha-lipoic acid, soy, resveratrol, quercetin may impair thyroid function.
Recalls & Warnings (2)
Clinical Updates (7)
Eggshell Membrane for Hair, Skin, Nails?
Hair & Nail Supplements Can Skew Lab Tests
Biotin Interference With Vitamin D Test
Growing Concern with Biotin Causing False Lab Results
Silica for Dental Implant Inflammation?
Right Dose of Vitamin D to Reduce Falls
Pulse Oximeter Accuracy
Also learn how to get the most accurate reading with pulse oximeters and see our choice for best home pulse oximeter.