Our Difeel Rosemary & Mint Hair Oils infused with nourishing Biotin. Biotin plays an important role in the health of your hair, skin, and nails. A lack of Biotin can lead to hair loss. It repairs dry and damaged hair to improve overall hair strength, growth and shine. Helps to increase growth and strength while invigorating the scalp for improved intense moisture and shine, while its infusion of Biotin encourages healthy hair growth.