Uriage Eau Thermale H.A. Booster Serum 30ml

The formula's intelligent use of multiple hyaluronic acid molecular weights sets it apart from single-action serums. Medium and low molecular weight hyaluronic acid works at the skin's surface, forming a protective film that limits water loss and creates a sponge-like effect, immobilising large quantities of water to instantly plump and hydrate. Very low molecular weight hyaluronic acid penetrates deeper, stimulating fibroblasts—the cells responsible for the natural creation of hyaluronic acid in the dermis—to bring lasting tone and elasticity to the skin. This dual-action approach ensures both immediate and cumulative benefits. Enriched with Aquaxyl, which boosts hydration across the skin's layers, and marshmallow flower extract, which protects against external aggressions, the serum delivers progressive, durable hydration that strengthens the skin's resilience over time. Uriage Thermal Water, combined with two exclusive Uriage patents (LN Modul and Barrier Patent), softens, soothes, and contributes to the skin's natural defences, ensuring high tolerance even for the most sensitive complexions.

Clinical results confirm the serum's outstanding performance. In user testing, 86% of participants reported replumped skin, demonstrating the formula's ability to restore volume and diminish the appearance of fine dehydration lines. Remarkably, 100% of users experienced visibly smoothed skin, a testament to the texture-refining power of the hyaluronic acid complex. Instrumental measurements confirmed a 97% increase in hydration, with lasting effects for 24 hours after application. These figures demonstrate that the serum not only provides immediate relief for thirsty skin but also builds lasting improvements in skin quality and barrier function.

The sensorial experience has been crafted to elevate daily skincare into a moment of pleasure. The enveloping, comfortable texture glides across the skin without any sticky or tacky residue. The fragrance, the signature of the Eau Thermale range, opens with bright notes of bergamot and peach, unfolds with a heart of lily of the valley, and settles into a warm base of cedar. The formula is composed of 97% natural origin ingredients, and the 100% glass bottle is endlessly recyclable, reflecting Uriage's commitment to environmental responsibility. To use, apply each morning and evening to thoroughly cleansed face and neck before your usual moisturiser. With consistent twice-daily use, the skin feels visibly plumper, looks smoother, and glows with lasting hydration, making this serum an indispensable foundation for any routine, particularly for those whose skin is parched, tight, or showing the first signs of dehydration-related ageing.

How to Use: 

Apply 2 to 3 drops before your Water Cream. Avoid contact with eyes.

Ingredients: 

Aqua (Water, Eau), Glycerin, Diglycerin, Sodium Lactate, Sodium Hyaluronate, Xylitylglucoside, 1,2-Hexanediol, Polysorbate 20, Anhydroxylitol, Citric Acid, Sodium Benzoate, Xylitol, Glucose, Parfum (Fragrance), Althaea Officinalis Flower Extract.