A maximum strength keratin smoothing treatment that smoothes and dramatically reduces frizz and curls on medium to resistant hair types. Featuring our proprietary KERABOND Technology, Extreme Renewal deeply penetrates the hair shaft for maximum repair, while pure keratin and a blend of silk amino acids, organic shea butter and green tea antioxidants encapsulate the hair to eliminate dryness and protect against the environment. Reduces excess volume and frizz. Delivers long-lasting nourishment and protection for up to 16 weeks. Safe for color-treated hair.
