Process

• 1). Check with your health-care provider to ensure that it is safe for you to take biotin.
  
  
• 2). Take 30 mcg per day for adults. Do not give biotin to children without asking a doctor first.
  
  
• 3). Increase the dosage to 100 mcg a day with a doctor's approval if 30 mcg does not produce results in strengthening hair.