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Product Reviews (8)
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CL Answers (27)
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Recalls & Warnings (234)
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Clinical Updates (18)
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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.
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.
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 >>
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.
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.
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.
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.
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 >>
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 >>
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 >>
10/23/2011
Hoodia Fails for Weight Loss
For several years, hoodia has been a popular ingredient in weight loss supplements -- despite a lack of evidence. The first significant study of hoodia was just published. It showed no weight loss benefit compared to placebo. Worse, those who got hoodia experienced more side effects. See our Hoodia Review Article for details and information about hoodia. More >>
9/15/2020
Preventing Muscle Loss with Leucine?
Do supplements with leucine (a branched-chain amino acid or BCAA) prevent muscle loss when muscles are immobilized (such as in a leg brace)? See what a recent study showed in the What It Does section of our Muscle & Workout Supplements Review.
12/02/2020
Vitamin D and Hearing Loss
A recent analysis showed low levels of vitamin D to be associated with hearing loss. Learn more in the What It Does section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
9/25/2011
Green Tea Extract and Weight Loss
A new study using a high dose of green tea extract showed it to help sedentary overweight men lose weight, while those taking placebo gained weight. This is not the first study to show this potential benefit of green tea extract. The effect may be due to the compound EGCG. Get the facts, including how much EGCG was in the product, in the Weight Loss Supplements Review. More >>
10/06/2013
Vitamin D for Post-Menopausal Women
A study compared the effects of low-dose and high-dose vitamin D on bone mineral density in post-menopausal women who were also supplemented with calcium. Both dosages helped prevent loss of bone mineral density, but the higher dose was less efficient in reducing bone turnover, i.e., bone loss, contrary to what the researchers expected. For details, including dosage, see the updated Vitamin D Supplements Review>>
9/02/2017
Extra Virgin Olive Oil Aids Fat Loss
A study among overweight women found that substituting extra virgin olive oil for another plant oil led to greater losses of body fat during dieting. See the details in the "What It Does" section of the Extra Virgin Olive Oils Review -- which includes our Top Picks among extra virgin olive oils.
8/27/2019
Whey Protein for Muscle Gain and Fat Loss?
Did drinking whey protein after resistance exercise help prevent muscle loss and reduce body fat in obese women? See what a recent study found in the Building and maintaining muscle section of the Protein Powders, Shakes and Drinks Review. Also see our Top Picks for protein powders and shakes.
3/06/2018
Do Probiotics Affect Weight?
Studies have shown some probiotics to help somewhat with weight loss and/or slimming, while others have shown no effect. However, a recent study with a popular probiotic found that it increased weight. Get the details in the Weight and fat loss section of the Probiotic Supplements Review.
News Releases (9)
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