What age should you start taking biotin? Infants and toddlers ages 3 and under need 10-20 micrograms (mcg) of biotin each day. Children ages 4 to 6 need 25 mcg of biotin each day. Children ages 7 to 10 need 30 mcg of biotin each day. Adolescents over the age of 10 need at least 30 mcg and no more than 100 mcg of biotin each day.
Can a teenager take biotin? Between 30 and 100 micrograms (mcg) per day of biotin is often recommended for adolescents and adults. Because it’s water-soluble, extra biotin will simply pass through your body when you urinate. While most people can handle biotin supplements, some people report mild side effects like nausea and digestive issues.
Should a 20 year old take biotin? The National Institutes of Health recommends a biotin dose of 20 to 30 micrograms (mcg) per day for teenagers and adults to prevent biotin deficiency.