Shu Uemura Color Lustre Reviving Balm - Cool Brown allows you to restore the vibrancy of brown hair and hold on to that just-coloured feeling. Colour Lustre is a rich, post-shampoo treatment that brings the warmth in brown hair and neutralises golden colouring, so you can prolong the intensity of your colour. Enriched with linseed oil, the nourishing balm also hydrates your locks to keep hair looking and feeling in pristine condition.