SAF100 PRO Hyaluronic Acid & Keratin Microsphere Hair ConcentrateThe SAF100 PRO Hyaluronic Acid & Keratin Microsphere Hair Concentrate contains vitamins B, C, E, hyaluronic acid and keratin microspheres to promote thicker, stronger and healthier hair and stimulates the formation of new hair stalks. USAGE DIRECTIONS: As an intensive hair tonic: Use at least once a week to nourish and stimulate hair follicles As a course of treatment: Use every alternate day. Break off cap and massage into scalp as an intensive hair