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While this study didn’t assess the effects of biotin supplements or biotin-added hair products on preventing hair loss, it demonstrates the link between hair loss and inadequate biotin levels. Of these participants, 11% had a history of deficiency risk factors, such as inflammatory bowel disease (IBD) or the use of certain medications like antibiotics ( 5). In one study, a biotin deficiency was found in 38% of women complaining of hair loss. Still, biotin supplements are only likely to prevent hair loss and promote hair growth in people with a biotin deficiency. No strong evidence supports using biotin supplements or biotin-added hair products to promote hair growth in non-deficient people.Īlthough the evidence to support biotin alone for hair growth is weak and limited, the evidence is slightly stronger for preventing hair loss. SummaryĪ biotin supplement can help correct a biotin deficiency and restore hair health and growth. Outside of these studies, there is no strong evidence to support taking biotin supplements or using biotin-added hair products to promote hair growth ( 2). In a different study, researchers found that children who experienced improved hair growth or quality after taking biotin supplements all had an underlying condition that caused a biotin deficiency ( 3). Any such deficiency could have been corrected through the study period, resulting in hair growth. However, because the hair growth supplement contained multiple ingredients - including zinc and iron, which are also necessary for hair growth - it’s not possible to attribute the study’s findings to biotin alone.įurther, the study was small, and it’s possible that the participants were deficient in one or more nutrients present in the supplement that affect hair health. Meanwhile, no significant changes were seen in the placebo group. Those who received the hair growth supplement reported a visible increase in overall hair volume, scalp coverage, and thickness after the treatment period.
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In an older 2012 study, women with self-perceived thinning hair were randomized to receive either a multi-ingredient hair growth supplement that contained biotin or a placebo for 6 months ( 4). This owes to the vitamin’s role in keratin production ( 2, 3).Īs such, biotin supplements and biotin-added hair products are commonly advertised to support healthy hair growth or promote thicker, voluminous hair.ĭespite these claims, though, there’s limited evidence to suggest that supplementing with biotin or lathering it through your hair promotes hair growth in non-deficient people.
Biotin 10000 mcg skin#
Many foods contain biotin, meaning that deficiency is rare in healthy people who eat a balanced diet ( 2).Īlthough rare, biotin deficiency can cause skin rashes, brittle nails, as well as hair thinning and loss. Your body also needs it to produce keratin - the type of protein that makes up hair, skin, and nails ( 1). Its primary role is to help turn the food you eat into energy. What research says about biotin and hair growth