There is some scientific evidence that it might help for brittle finger and toenails.
There isn't enough information to know if biotin is effective for the other conditions people use it for, including: malnutrition, hair loss, diabetes, and others.
Likely Effective for...
Possibly Ineffective for...
Insufficient Evidence to Rate Effectiveness for...
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
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