JOHN AMICO'S DHT BLOCKING TRIO helps block the hormone responsible for hair loss, which is the main benefit of using this product line. Rosemary leaf and essential extracts help keep your follicles healthy. The anti-loss formula combats issues such as thinning hair, hair fall, and patches while the moisture-rich shampoo nourishes each strands with hair vitamin E, B5 an Biotin keeping hair healthy, shiny and luscious. Color-safe & paraben-free.