This Sothys iconic serum combines 4 sources of hyaluronic acid with 2 Sothys patented active ingredients in its new generation formula for a global hydrating action. Designed to work like a skin architect, this intensive serum aims to lastingly boost hydration mechanisms. Its water-light texture, rich in liposomes, instantly melts into the skin. Apply morning and/or evening over the entire face and neck area. Follow with the adapted hydrating youth cream or any other cream.