At Cult Beauty we call his unique gel hair treatment the Hair Shrink, because it changes the personality of your hair for the better. Persian Katira extract, treasured in the Middle East for hair healing, rebuilds damaged areas of the cuticle smoothing, plumping and strengthening and L-Amino Acid Complex moisturises & infuses weightless, nourishing proteins for control and elasticity. An overnight Karita Masque leaves your hair impossibly shiny & bouncy with increased body, thickness & strength.