WOW Skin Science Moroccan Argan Oil Shampoo with Natural DHT Blockers has been formulated to bring back smoothness, restore silkiness, and reduce hair loss in extra dry hair. It contains Moroccan Argan Oil to reduce dryness and restore strength. This shampoo also contains Saw Palmetto and Nettle Leaf Extracts for natural DHT blocking action (DHT or dihydrotestosterone is a hormone responsible for hair loss and baldness) to help reverse hair loss and reduce hair fall. It also contains Vitamin B5 to strengthen hair follicles and boost hair growth. Its pH balanced formula is totally without sulphates, parabens, silicones or salt.