Encourage lightweight luminosity and full-bodied bounce with the Kérastase Chronologiste Youth Revitalising Bain Regenerant Shampoo Duo. The potent formula helps to remove impurities from around the scalp and hair fibre while effectively cleansing your lengths. Thanks to a blend of hyaluronic acid, edelweiss flower and abyssine, the high-performance formula envelops the strands in hydration to help nourish them from root to tip. The antioxidant-rich formula leaves locks supple, shiny and full of life.