Our Collagen B7 vitamin hair care essential oil contains biotin, acid berry extract, collagen. It nourishes the scalp, contains highly effective biotin and collagen, protects hair follicles, prevents hair loss, balances scalp sebum, stabilizes hair roots, promotes blood circulation, and accelerates hair regeneration. Its application is simple: wash and blow dry your hair, shake the liquid in the bottle on the scalp surface, apply the product to the scalp in appropriate amounts, and massage gently with your fingertips to promote absorption. After use, it helps to deeply nourish hair roots, prevent hair loss, strengthen and moisturize hair, promote hair growth acceleration, repair damaged hair, reduce hair loss, and make your hair thicker and more shiny.