HydraLuminous+ Hydrating Dual Phase Mask - No7 HydraLuminous+ Dual Phase Mask locks in 72 hours of intense hydration that can improve dehydrated skin in just 15 minutes, leaving it feeling soft and smooth. Also used as an overnight treatment to replenish skin's moisture levels, so you wake up to dewy-looking, radiant skin.BenefitsPowered by 3-in-1 technology, HydraLuminous+ Dual Phase Mask provides instant and long-lasting hydration for visibly healthier-looking skinKey Ingredients2% Vitamin B3 Niacinamide: Reduces water loss in the skin and supports the skin's barrierPollution Shield Technology: Helps defend the skin from pollutants for radiant-looking skinHyaluronic Acid: An intense hydrator that acts like a moisture magnetResearch ResultsDelivers 72 hours of deep hydration*90% agree that the product delivers long-lasting hydration (when used as an overnight treatment)**Enriched with a 3-in-1 powerhouse complex, including Hyaluronic Acid with strengthening 2% Niacinamide* Instrumental study** Consumer study on UK women - HydraLuminous+ Hydrating Dual Phase Mask