Biotin is a popular supplement for those who are looking to improve their skin or grow their hair and nails. But just as with any supplement, it's important to be aware of how it could negatively impact your body. There are a number of unexpected negative side effects of taking biotin, and it's good to be aware of them before you start a regimen. Not all these things will necessarily happen just because you take biotin, but before you begin ingesting the supplements, you should proceed with caution and always talk to your doctor about all possible side effects.
"Those with biotin deficiency may potentially benefit from biotin supplementation for their condition," Dr. Nesochi Okeke-Igbokwe tells Bustle. "It is generally deemed safe as long as you are taking the recommended dosage prescribed by your doctor. Biotin has grown in popularity though for generally healthy individuals trying to strengthen their nails and promote the growth of their hair. More scientific studies are really needed to confirm the efficacy of biotin for this purpose."
There are some studies that suggest that biotin can help with hair and nail growth, according to Mayo Clinic, but the vitamin can also come with some unwanted side effects. When in doubt, always consult with a physician before beginning a biotin regimen to be safe. Here are seven unexpected — and potentially dangerous — side effects of taking biotin, according to experts.