Stress, seasonal influences, brushing, styling... Your hair is weakened, finer and often stays in the brush. Train your hair resistance and give your hair more power! Uses our fortifying formula with biotin+provitamin B5+arginine. The new Elseve Full Resist Power Booster Conditioner gently detangles hair, conditions it and prepares it for the deep treatment that follows. Day after day, your scalp seems revitalized, hair loss due to breakage is reduced. The complete Elseve Full Resist hair care series consists of the hair loss shampoo (due to breakage), conditioner.