Recommended by health experts, the Nanogen Hair Nutrition for Men 20+ is a unique bioavailable formula, which is scientifically proven to work. The food supplement helps to maintain hair growth, while nutritionally supporting active lifestyles and training routines, so you can get back to what’s really important. Directions For use: Take two tablets daily, one in the morning and one in the evening. For best results, take with a meal. Do not exceed recommended daily intake.