Nourish and fortify hair with L'Oréal's Power Mask Elvive Full Resist Multi-Benefit Fortifying Mask for Fragile Hair with Biotin for Hair Loss. Specially formulated for those concerned with excessive hair breakage and hair loss, this multi-benefit fortifying mask is designed to hydrate, strengthen and repair. With a light texture, the mask features a silicone-free formula for a natural feel. The fortifying mask has been enriched with restorative supplements such as biotin, vitamin B5 and arginine to strengthen the hair structure from root to tip. Ideal for weakened and brittle or damaged hair, this mask helps hair resist the physical damage of styling. Suitable for both men and women, the mask is designed to combat weakening or breakage due to pollution, seasonal changes, daily brushing and styling to promote thicker, stronger hair.