Nature Lab Perfect Repair Treatment Masque 6.7floz silicone free, deep conditioning treatment masque that restores dull hair from scalp to strand. Smart Keratin technology fortifies the hair cuticle and penetrates the cortex to rebuild body and revitalize shine. Potent plant Stem Cells from Bamboo strengthen the hair shaft and promote healthy hair growth while antioxidant-rich Argan and Prickly Pear oils add a protective luster. Damaged hair is visibly improved and new hair sprouts stronger.