inhibit DHT as far as I know. Revivogen Anti DHT Shampoo Around $45 for 12.5oz Key ingredients: Aloe Vera, Jojoba Oil, Panthenol, Ascorbic Acid , Linolenic Acid , Zinc Sulfate, Linoleic Acid , Azelaic Acid, Vitamin B6, Niacin, Saw Palmetto, Menthol. The good: Azelaic acid and saw palmetto are probably the best