NK Keratin Sensitive Hair Straightener with Collagen, Hydrolyzed Keratin. (15oz)

Hair with extreme straightening in just 20 minutes and up to six months. Now, you can have smoother, softer and more manageable hair without sensitizing your senses. Start by washing the hair with Step 1, this NK Professional Care treatment perform a deep cleansing on the hair, Pre-Treatment Anti-Residue Shampoo for professional use. The Collagen contained in its formula is a protein that provides structure and elasticity to the hair. Its formula contains nanoparticles that penetrate more easily into the hair cuticle, providing its repair and strengthening benefits. Hydrolyzed Keratin helps restore the hair's natural Keratin. The combination of our modifying agent in addition to Collagen and Hydrolyzed Keratin guarantees extreme straightening, nutrition, regeneration and reparation, offering a visible improvement in the appearance of the hair in just 20 minutes.