Immediately Comforts The Skin, Thanks To The Natural Soothing And Anti-Irritating Properties Of Avène Thermal Spring Water. 24H Hydration* That Leaves Skin Intensely Moisturised And Nourished. Tm Of Sytheon Usa *Measurement Of The Hydration Index On 20 Subjects With Dehydrated Skin, After 1 Application On The Forearm.