Nature Lab Tokoyo's Perfect Repair Treatment Masque 6.7 fl oz. New and unopened! Get back to your roots with this deep conditioning Perfect Repair Treatment Masque that restores dull hair from scalp to strand. Damaged hair is visibly improved and new hair sprouts stronger. Leave in for 3-5 minutes for each use. The scent of the product is inspired by Japanese bamboo forests with a hint of green tea and cypress.