Biotin is a form of vitamin B found in foods. Biotin helps the body break down fats, carbohydrates, and other substances.
Biotin has been used in alternative medicine as a likely effective aid in treating or preventing biotin deficiency. Biotin deficiency can be caused by malnutrition, rapid weight loss, long-term tube feeding, and other medical conditions.
Biotin has also been used to treat seborrhea (skin rash) in babies. However, research has shown that biotin may not be effective in treating this condition.
Other uses not proven with research have included treating brittle nails or thinning hair, diabetes, nerve pain, and other conditions.
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No side effects have been reported for biotin in amounts up to 10 milligrams a day. However, check with your health care professional if you notice any unusual effects while you are taking it.