Our hair care serum contains rosemary extract, Polygonum multiflorum extract, and castor oil. It can be specially designed for weakened hair to enhance the vitality of the hair roots. Its use is simple: clean your hair and scalp and keep them dry; Take appropriate amount of this product and evenly apply it on the scalp; Gently massage your scalp with your fingertips for 2-3 minutes to promote absorption. And can help prevent hair loss, promote hair growth, inhibit oil and keep hair fresh.