what is a normal dose of biotin
The general daily recommended dosage of biotin is 2.5 mg (or 2,500 mcg), according to Dr. Scher. However, it's not clear what the correct dosage is for the full effect, but it's important to consult your doctor to avoid overdosing. Dr. Stuart suggests looking out for these possible signs of biotin overdose: slower release of insulin, skin rashes, lower vitamin C and B6 levels and high blood sugar levels.
Because lack of biotin is rare, there is no RDA or RNI for it. Normal daily recommended intakes for biotin are generally defined as follows: Infants and childrenâ Birth to 3 years of age: 10 to 20 micrograms (mcg). 4 to 6 years of age: 25 mcg. 7 to 10 years of age: 30 mcg.