Product details:A hydrating serum.Get a hit of much needed hydration with the Avène Hydrance Booster Serum. Providing 48hours of hydration to the skin; this ultralight; gelwater textured boosting serum enriched with a hyaluronic acid and niacinamide formula helps restore balance to dehydrated; sensitive skin without leaving any greasy or sticky residue; whilst removing any dullness to give you your softest; smoothest skin yet. Say hello to happy; healthy; hydrated skin! Dermatologically tested pH 5.5 Suitable for dehydrated and sensitive skin Hydrance Boost Serum