Keratin is a substance that coats the hair shaft and thus closes split ends and creates a protective external coating that surrounds and smoothes the hair. This mask is based on a patented technology to strengthen the fiber hair shaft and handles hair that is smoothed by all smoothing methods and for hair that is heat designed by hair dryer or ceramic hair straightener. Innovative formula without salts. Extends the life of the smoothing and prevents the effects of humidity. Enriched with Keratin, Argan oil, Shea butter, Olive oil, Pro-vitamin B5 and Vitamin E. After using the hair is smoother, healthier, glowing, softer and easy to design and combing.