A post-treatment leave-on serum With a keratin- & collagen-based, sodium-free formula Adds definition & luster to hair fights against the effects of humidity Binds moisture into hair follicles Facilitates easier blow-drying & styling of hair Suitable to use after any La-Brasiliana Keratin Treatment to maintain integrity of treatment Apply on wet hair, work evenly throughout hair from scalp to ends. No need to rinse. Can be used on dry hair to boost definition & control