This effectively moisturizing leave-in serum contains hyaluronic acid, which boosts your hair’s natural moisture balance making your hair feel and look healthy. Sunflower seed oil extract protects and repairs sun damaged hair. Makes your hair easy to comb and style. USE: Pump serum into your palm and apply to damp or dry hair starting from ends. The serum is also suitable for moisturizing dry scalp: massage serum into your scalp. Do not rinse out.