Your skins daily dose of strength. Give your skin a hydration boost with Vichys Mineral 89 Hyaluronic Acid Hydration Booster. A fresh, facial serum delivering a daily dose of hydration, strength and protection against pollution. The Hyaluronic Acid serum combines our highest concentration of Vichy Volcanic Water with natural-origin Hyaluronic Acid to instantly strengthen the skins barrier function whilst providing significant anti-pollution efficacy and up to 24-hour hydration. Recommended as the first step in your skincare routine, this 11-ingredient formula is designed specifically for sensitive skin. Tested with 175 dermatologists on 1500 women. Suitable for sensitive skin. KEY INGREDIENTS: Vichy Volcanic Mineralizing Water + natural-origin Hyaluronic Acid.