Our Biotin Dense Hair Oil contains Biotin, Ginger Root Extract, and He Shou Wu Vine Stem Extract.It prevents hair loss and juvenile graying common in modern times, replenishes biotin, repairs premature graying due to low biotin levels, nourishes and protects hair, and also improves the health of hair follicles, promotes hair growth, reduces dryness of hair, and increases shine for smoother, more beautiful hair.It is easy to use: take an appropriate amount of this product and apply it evenly to the hair, gently massage until it is completely absorbed.It can deeply awaken dormant hair follicles, promote the growth of new hair, strengthen the hair root and make hair healthier and thicker.