Our Keratin & Collagen Complex is packed with essential vitamin's and minerals but there is one ingredient that sets it apart from other products. Cynatine HNS is a revolutionary cosmeceutical ingredient comprised of Solubilized Keratin, a protein found naturally in the body. Cynatine HNS supplements the body with bioavailable keratin which aids in protecting, reduce shedding and repairing damaged Hair, Nails and Skin.