The Hydradvance™ program was born of the Sothys’ advanced research team’s latest technological discoveries in gene science. This advanced hydration GENerating program is a tailor-made solution providing incomparable moisturizing power with immediate and long lasting results. SOTHYS’ boletus mushroom extract, the active ingredient in this collection, acts on two fundamental mechanisms of hydration – hydric flow, the transfer of water from the dermis to the epidermis, and barrier function, the strengthening of the surface layer to restrict moisture loss.