The only adaptive hydrating gel¹. 500 hours of full hydration in a jar, whatever the environmental conditions.² Biotherm introduces new Aquasource, a hydrating formula extra-charged with regenerating Life Plankton™ and moisturizing Mannose to keep skin perfectly hydrated hour after hour, whatever the environmental conditions. Skin is water-plumped and radiant as if it were just moisturized. Every day your skin loses up to half a liter of water. Our new Aquasource formula keeps skin at maximum hydration seven hours, as if it were just moisturized. Hydration is sustained hour after hour, whatever the environment. ¹From Biotherm. ²Test performed with instruments, 20 subjects. Cumulative duration for a 50 mL jar based on 8 hours of hydration per application . *Test performed with instruments, 24 subjects. Use every morning and/or evening on clean, toned skin. Dispense one dose into the palm of your hand. Using both hands, smooth over the face starting from the center and moving outward. Finish with the neck. Avoid the eye area.