Can too much biotin make your hair brittle? Regular intake of excessive quantities of certain nutrients can cause hair loss in some cases due to a temporary condition known as Telogen Effluvium. However, the effects of too much vitamin B7 – also known as biotin toxicity – remain unconfirmed.
What are the negative effects of biotin? Biotin supplements can cause problems if you take too much. Side effects can include skin rashes, digestive upset, problems with insulin release, and kidney problems. As with any supplement, the safety of long-term or high-dose use isn’t known.
What happens to your hair when you take biotin? Biotin, also known as vitamin B7, stimulates keratin production in hair and can increase the rate of follicle growth. It is not stored for long in the body – most of yours is from the foods you eat. In order to be effective, it needs to be consumed.
Related Questions
Does Biotin Make Your Hair Dry
“Supplementing biotin may help in supporting dry scalp and dry hair.”* (Biotin deficiency is rare in the U.S. population, however. While dry hair can be an indicator of an issue, as with most deficiencies, the only way to tell for sure is by getting a blood test from your doctor.)