The Food and Drug Administration does not have biotin dietary recommendations per day, since biotin deficiency cases are quite rare. However, the dosage of biotin may vary by age, sex, and overall health.
Experts recommend the following dosing guidelines.
Anyone aged 10 years or older should get between 30-100 micrograms (mcg) per day.
Infants and children should get 10-20 mcg per day (0-3 years of age). 25 mcg (age 4-6 years), and 30 mcg (age 7-10 years).
Women who are pregnant or breastfeeding may need higher amounts of biotin.
Talk with your doctor about the right daily intake for you. Doctors can provide guidance on how to safely increase the dose of biotin to provide maximum benefit. You can meet recommended doses of biotin through the diet or by taking biotin supplements.