Vichy's best-selling hyaluronic acid booster is formulated with Pure Hyaluronic Acid and 15 Mineral-Rich Vichy Volcanic Water to strengthen & repair your skin barrier. This daily hydrating and plumping booster has been clinically tested by 175 dermatologists on 1600 women worldwide. Safe and effective for all skin types, in a minimalist, fragrance free formula with only 11 ingredients.