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 regrowth. It's easy to use: wash and blow dry your hair, shake the liquid from the bottle on the surface of your scalp, apply the product to your scalp and gently massage it with your fingertips to promote absorption. After use, it helps to deeply nourish hair roots, prevent hair loss, strengthen and moisturize hair, promote accelerated hair growth, repair damaged hair, reduce hair loss, and make your hair thicker and shinier.