Biotherm Gel 48H* Continuous Release Hydration (For Normal to Combination Skin) has the following features: New version of the best-selling hydrating gel, extra-charged with 10% more of regenerating Life Plankton™. Moisturizing Mannose keeps skin ideally hydrated for up to 7 hours after each application. Each jar delivers 500 hours* of complete hydration for a long lasting hydration effect, whatever the conditions. * Instrumental test, 20 subjects —— Cumulative duration for a 50ml jar based on 8h of hydration per application.