12Reasons Purple Shampoo rids client’s hair of unwanted yellow and brass tones, while boosting essential hydration and nourishment. The transformational ability of 12Reasons: Cleanse, detangle, colour protection, rich nourishment, anti-frizz, eliminate product build-up, deeply moisturise, add brilliant shine, smooth, nurture dry and damaged hair, improve manageability and won’t weigh hair down.