Across various websites and studies (we explored two of many that can be found online: Medical News Today and Harper’s Bazaar), the truth one must admit is that Biotin does not stop hair loss or thinning hair. Furthermore, most adults aren’t even deficient in this B7 vitamin and adding more Biotin to one’s diet won’t really do much good.
More recent scientific tests show that taking too much Biotin can also throw off blood test results. It can as much create a false positive for women taking pregnancy tests as false negatives for people going in for cancer screenings.
Hair loss is a very common disorder and there are treatments to help reduce the rate at which you shed your hair. While biotin is added to some shampoos that claim to reduce hair loss, there is no evidence that this works.
According to a 2017 review in the journal Skin Appendage Disorders, there is little conclusive evidence that biotin reduces hair loss, but yet it remains a popular supplement for hair, skin, and nail growth nonetheless.
Biotin supplementation may be helpful for people who are truly biotin-deficient, but biotin deficiency is quite rare amongst the general population. So now, you might be asking yourself, what do I do about my thinning hair?