Pureology satin soft precious oil shampoo this satin precious oil shampoo from pureology is designed to specifically replenish brittle dull hair that has been damaged by colouring and every day wear and tear this satin soft precious oil shampoo delivers oil to the hair fibers to replenish and nourish leaving you hair conditioned and stronger concentrated with a zerosulfate and zerosilicone oil formula that creates a gentle foam and delivers an intense shine your hair colour will become mor