Our advanced hair growth formula contains all the key ingredients (saw palmetto, biotin, calcium, zinc and more) that collaborate together to help grow and prevent hair loss for men and women. DHT Blocker can help both men and women by reducing and blocking extreme increase of DHT that otherwise can be the source of adult acne, increased sweating, aggression and sleep apnea. DHT Blockers contain 2000mcg of Biotin, known to boost keratin production strengthening nails and promoting youthful skin. Nor for resale on Amazon.