Vichy’s no1 bestseller Minéral 89 Hyaluronic Acid Booster, dermatologist recommended and approved by the British Skin Foundation. A minimalist 11-ingredient formulation, Mineral 89 booster is enriched with Hyaluronic acid, 15 essential minerals, and our highest concentration of Vichy Volcanic Mineralizing Water, instantly plumping your skin with moisture and hydrating for up to 24 hours. Its lightweight, gel texture absorbs quickly into the skin and pairs well with other skincare ingredients, making it the ultimate ‘step zero’ of your daily skincare routine. A soothing sensation upon applying, this daily serum helps strengthen skin’s natural barrier function and protects the skin exposome from daily environmental aggressors such as pollution. Hypoallergenic, fragrance-free, and tested under dermatological control.