Hair Growth Shampoo & Conditioner by Watermans UK Biotin, Argan Oil, Allantoin,
Male & Female Hair Loss Products. Argan Oil kernels. Biotin, Caffeine. Wet hair, apply product, lather/massage into scalp, leave on for 2-3 minutes, rinse thoroughly. For conditioner, apply to damp hair, leave on for 2-3 minutes, then rinse.