This cutting-edge hydrating serum offers a concentration of hyaluronic acids and Swiss glacier water whose efficacy has been clinically tested to provide a plumping effect after the very first application. It improves the skin's water balance, optimizes and reconfigures its hydration reserves and fights against the harmful effects of pollution and free radicals, especially those generated by exposure to blue light. Encasing Swiss glacier water in liposomes allows it to more effectively penetrate the skin, resulting in deep, lasting hydration.We take the skin's physiology into account when selecting all our ingredients to ensure optimal compatibility.The ultra-complete HYDRA Hyaluronic2 formula combines an Hyalu2 complex to HYDRA 3D technology that offers complete hydration targeting the 3 dimensions of hydration: supply, diffusion and retention of water molecules. This technology provides long-lasting deep hydration for quenched and replenished skin.