What It Is:The essential and universal Ecological Compound Advanced Formula is a renewed version of a pioneering formula at Sisley. It is enhanced with two additional key ingredients (burdock and meadowsweet extracts) while retaining the original complex of five plant extracts (Centella asiatica, ginseng, hops, horsetail and rosemary).What It'S For:Suitable for men and women of all ages, whatever their skin type.What It Does:- Adapts to suit the needs of all skin types to help the skin function more optimally.- Formulated to have a pH as close as possible to that of the skin.- Promotes a balanced microbiome and stimulates the skin's natural defense mechanisms. The skin feels more resistant and better equipped to defend itself against the harmful effects of the environment, including pollution, smoke and free radicals.- Contributes to the optimal activity of the skin's vital functions. The skin looks revitalized and its tone and radiance appear restored.- Lastingly hydrates and nourishes the skin to leave it feeling more comfortable and supple. Balanced, visibly strengthened and revitalized, the skin feels more resilient and its quality appears improved.- Fluid, comfortable and non-greasy "second-skin" texture leaves the skin matte.How To Use It:Apply alone or before any other skincare product to optimize the rest of the routine.