Recommended by health experts, the Nanogen Hair Nutrition for Men 40+ is specifically formulated to maintain hair growth in men over 40. The unique formula is scientifically proven. Be sure that your hair is getting the right supoprt, so you can focus on what really matters at a prime time in your life. 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.