Transform limp-looking hair with the Joico Youthlock Treatment Mask. The ultra-nourishing formula adds lustrous bounce and shine to the strands, while helping to minimise the risk of breakage.Powered by SMART RELEASE Technology, the treatment strengthens the feel of hair and diminishes the appearance of damage, with the addition of buriti oil working to deliver a hydration boost. Complete with collagen for a thickening effect, the mask promotes a silky finish.