kerotin hair growth serum - intensive hair growth drops treatment - boost natural and healthy hair growth, increase hair density, reduce hair loss - promotes longer and thicker hair - 1 month k kerotin increases hair density, boosts growth and prevents hair loss. this serum contains unique natural ingredients that renew the hair follicle on the scalp and block the dht hormone. easy, quick to apply and incorporate to your hair care routine with no greasy result.