Hyaluronic acid is one of the most talked-about ingredients in cosmetics. Day or night face creams, serums, oils, eye contours... This active ingredient, which promises to reduce wrinkles and leave skin hydrated and plump, is in every formula! But do you know where it comes from? How does it work on the skin and what are its (many) benefits? How do you choose the right hyaluronic acid cream? Today, we're lifting the veil on an exceptional active ingredient for firm, youthful skin, which we've been incorporating into our face care products for a long time!