Discover the beautiful hair you had all along and wake up with beautiful hair everyday with the fast, safe, and easy to apply Inverto 60 Deep Penetrating Gel Keratin Treatment by Keratin Research. Save yourself the countless hours and damage of blow dryers and hair straighteners with the Formaldehyde-Free and Paraben-Free Inverto 60 Keratin Treatment. This Keratin Research straightening Treatment is designed to straighten hair, remove frizz, and add shine, silkiness and softness to your hair. The results are instant! Nothing else to do! The Keratin Research Inverto 60 Treatment will last for over 3 months and in some cases as long as 9 months. In your current busy lifestyle, you will find this keratin hair treatment by Keratin Research to be a life changing experience! With Keratin Research's Inverto 60 Keratin Hair Treatment your hair will be easier to manage and maintain, smooth, fast-drying and easy to style. The Keratin Research Inverto 60 Keratin Hair Treatment is suitable for virgin, colored, and previously chemically-treated hair.