Our DHT blocking shampoo is formulated with saw palmetto, a proven DHT blocker that can reduce levels of the hormone in the scalp. The shampoo also contains caffeine, argan oil, iron, and vitamin B3. DHT (dihydrotestosterone) is a male hormone that is a by-product of testosterone. In men who are sensitive to it, DHT binds to hair follicles, leading to hair shrinkage and eventual hair loss. This shampoo is suitable for men experiencing early signs of a receding hairline and hair loss in the crown area. Active Ingredients: Aqua, Argania Spinosa Kernel oil, Citric Acid, Citrus Reticulata Tangerine Fruit Extract, Cedrus Deodara wood oil, Cocamidopropyl Betaine, Glycerin, Guar Hydroxypropyltrimonium Chloride, Hibiscus Syriacus Bark Extract, Lauryl Glucoside, Magnesium Nitrate, Vitamin B3 (Niacinamide), peg-12 Methyl Glucose Dioleate, Phyllanthus Emblica Extract, Polyquaternium-10, Oil Rosmarinus Officinalis Leaf oil, Salvia Officinalis oil, Sodium Chloride, Sodium Lauroyl Sarcosinate, Saw Palmetto (Serenoa Serrulata Fruit Extract), Ubiquinol, Caffeine, Biotin, Disodium Edta, iron (Ferrous Gluconate), Parfum. Usage: Use once a day as part of your everyday shower routine. Massage into the scalp and leave in for approximately 60-90 seconds before rinsing out.