Fortified, strengthening formulas infused with Biotin, a water soluble vitamin that's a part of the vitamin B family. Biotin plays an important role in the health of your hair, skin, and nails; A lack of biotin can lead to hair loss. Improves both hair strength and shine. Natural hair oil that helps promote healthy hair growth. For a deeper more nourishing treatment, the oil can be liberally applied to scalp, roots, and through to the ends for an overnight treatment. For best results, use oil daily for increased moisturization and monthly for a deeper treatment.