Experience the power of L'Oréal Paris Hyaluronic Acid (HA) serum with our highest concentration* of 1.5%. Hyaluronic Acid plumps up skin (90%*), deeply hydrates (98%+), and boosts radiance (98%+). Patented micro-hyaluronic technology penetrates deeper for immediate results. Dermatologist-tested for visible improvements in plumpness, fine lines, and texture.