Keratherapy Color Lock & Smooth Keratin Treatment Spray is the hottest new service in professional salons today. This 2 in 1 formula should be used after all color or highlighting services to lock color in and prevent fading, or as an in-salon express keratin treatment providing frizz and curl control simply and quickly. • Pure keratin, collagen, Argan oil and natural fruit acids penetrate and repair damaged, frizzy and lifeless hair. This leave-in treatment works double duty to replenish natural keratin and collagen proteins that are lost over time. • It coats the outside layers of the hair then penetrates all the way down to the hair cuticle, instantly revealing a healthy luster and high impact shine. Works on all hair types for up to 4 weeks.