Chronology Masque Intense Régénérant by Kérastase. Regenerating and rejuvenating mask for hair and scalp. So far Chronologe is renewed by presenting the most complete regenerating anti-aging treatment for hair and scalp. Restores scalp and fiber for hair that feels like no time has passed. The rejuvenating mask that prevents signs of aging in both hair and scalp. Provides hydration thanks to hyaluronic acid that plumps the fiber, frizz control, softness and a healthy shine. Strengthens hair.