Infuse life back into damaged, over-styled hair with the powerful Hask Keratin Protein designed to restore, revive and strengthen parched, frizzy locks. Hydrolysed keratin is a highly refined protein, structurally identical to naturally occurring keratin found in hair. Its precise molecular weight and size allows for optimum penetration and imparts gloss, strength and smooth texture. Keratin works to coat the hair shaft, reducing split ends and improving the hair's appearance and manageability. , How to Use? , Apply generously to wet hair. Massage into a luscious lather, then rinse thoroughly, and repeat as often as you desire. For the smoothest hair imaginable, follow with Hask Keratin Protein Smoothing Conditioner, of course!