Youth revitalizing serum to provide intense hydration to scalp and hair. Scalp feels revitalized and comforted*. Hair has 81% more hydration, more shine and long-lasting frizz-control**. Each fiber is plumped for a thicker diameter**, giving a fuller effect. This powerful and serum also prevents pollution particle deposition, to protect scalp and fiber. Using biomimetic caviar encapsulation, the S?rum Universel harnesses the power of hyaluronic acid, abyssine and vitamin E at their purest potency. Infused with the signature Chronologiste scent of fine fragrances, including tea rose, light woods and musk, S?rum Universel is a luxurious sensorial experience.