In vitro evaluation of finished cosmetic products and cosmetic ingredients. BIO-HC performes in vitro toxicity tests (OECD & J.O.R.F) and customized efficacy studies (anti-aging/senescence, pollution, glycation, barrier function, etc.), on different model : in tubo, cells culture (NHEK, NHDF, HDMEC, HFDPC, SEB, etc.) and tissues / 3D (derm equivalents, RHE, explants).