Sodium Hyaluronate
A powerful humectant that holds up to 1000 times its weight in moisture, deeply hydrating the skin and restoring moisture balance to alleviate dryness and improve skin elasticity.
COSRX14-day returns policy
COSRX The Hyaluronic Acid 3 Serum 20ml – Deep Hydration Facial Serum 20ml (0.67 fl oz)
57.49
151.90
-62%(VAT incl.)
1 people bought this product this week
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COSRX The Hyaluronic Acid 3 Serum is designed for people looking to boost their skin's hydration with a concentrated 3% hyaluronic acid formula. It's meant to help plump the skin and support the moisture barrier, making it a good fit for anyone wanting a more hydrated complexion as part of their daily routine.
The COSRX Hyaluronic Acid 3 Serum is a highly concentrated 3% hyaluronic acid formula that delivers intense, multi-layer hydration to instantly plump, soothe, and strengthen the skin's moisture barrier, immediately increasing external skin moisture by 223.95% and internal skin moisture by 16.35%, making it an essential daily serum for anyone seeking a visibly dewy, healthy, and resilient complexion.
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COSRX: Korean Skincare Science Meets Simplicity
COSRX is a Korean skincare brand dedicated to solving real skin concerns through ingredient-focused formulations and dermatological expertise. The brand's philosophy centers on understanding individual skin needs—from acne and sensitivity to aging and hydration—offering targeted solutions backed by science. As the official store, COSRX guarantees authenticity and provides tools like their Skin Quiz and Routine Builder to help customers find their perfect regimen.
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Key Ingredients(3)
Ceramide NP
A lipid that strengthens the skin barrier and protects against external stressors, helping to prevent moisture loss and maintain skin hydration.
Amino Acid Complex (NMF)
A blend of amino acids including serine, alanine, glycine, and others that improve the skin barrier function and protect against dryness and dehydration.
Ingredients(43)
WaterButylene GlycolPropanediolGlycerinSodium HyaluronatePentylene Glycol1,2-HexanediolDiethoxyethyl SuccinateSodium Polyacryloyldimethyl TaurateBetaineXanthan GumDimethiconeHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate CopolymerSodium PCASodium LactatePCAGlyceryl Acrylate/Acrylic Acid CopolymerHydrogenated LecithinEthylhexylglycerinSerineAlanineGlycineSodium PhytateSorbitan IsostearatePVM/MA CopolymerGlutamic AcidCitric AcidLysine HClThreonineArginineSodium Methyl Stearoyl TaurateProlineCeramide NPCholesterolCaprylic/Capric TriglyceridePhytosphingosineStearic AcidOleic AcidAlcoholTocopherolLactic AcidCaprylyl GlycolCaprylhydroxamic Acid
How to Use
After cleansing, during the serum phase, apply a few drops to the skin. Use fingertips to gently massage and absorb the serum, starting from the center of the face working towards the edges. Can be used morning and/or evening.
Specs last updated: May 17, 2026
