The roll-on massage design allows for easy application and helps to strengthen the hair roots, reducing hair loss and breakage. Biotin hair growth roll-on massage essence is also great for protective styles such as a twist out, braid out,locs,and a sleek bun. It can be applied daily on both dry and damp hair.Can strengthen hair elasticity and smooth dry hair. This essence is enriched with nourishing ingredients that provide essential nutrients to the hair, keeping it healthy and moisturized. Whether you have dry, oily, or damaged hair, this essence is suitable for all hair types and can help to improve the overall condition of your hair. Simply roll on the essence onto your scalp and massage gently for a few minutes. Use it regularly for best results.