The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
The Hyaluronic Acid 3 Serum
Cosrx

The Hyaluronic Acid 3 Serum

$ 25.00
 per 
Size: 0.68oz / 20ml
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About the Product

Hyaluronic acid is a moisture magnet that pulls water into your skin and keeps it there. This serum packs 3% sodium hyaluronate (a form of hyaluronic acid that absorbs easily) into a lightweight, watery formula that sinks in fast without any sticky residue. It's designed to boost hydration, support your skin barrier, and leave your complexion looking plump and bouncy.

Who is This For?

Suitable for all skin types, but especially helpful if your skin is feeling dehydrated, dull, or a little lackluster. It's also a great pick if you want a no-fuss hydrating serum that layers well under everything else.

Key Benefits

  • Draws moisture into skin and helps it stay there all day
  • Supports your skin's natural barrier with ceramides
  • Contains amino acids that mimic your skin's own hydration system
  • Lightweight texture that plays nicely with other products

Key Ingredients

  • Sodium Hyaluronate (3%) — Attracts and holds onto water, giving skin that hydrated, plump look
  • Ceramide NP — Helps strengthen your skin barrier so moisture doesn't escape
  • Amino Acid Complex — Works with your skin's natural moisture factors to keep hydration levels balanced
FAQs

Q: Can I use the COSRX Hyaluronic Acid 3 Serum if I have oily skin?
A: Yes, the lightweight, non-greasy formula is suitable for oily skin types and absorbs quickly without adding excess shine or heaviness.

Q: Should I apply this serum to wet or dry skin?
A: Applying to slightly damp skin helps hyaluronic acid draw moisture more effectively; however, it can also be applied to dry skin followed immediately by a moisturizer.

Q: When should I apply this in my routine?
A: After cleansing and toning, before your moisturizer—it layers well under other products and can be used both morning and night.

Q: Can I use this serum with retinol or niacinamide products?
A: This serum can be used alongside niacinamide products without issue; when using with retinol, apply the hyaluronic acid serum first, allow it to absorb, then follow with retinol to help buffer potential dryness.

Q: How long before I see results?
A: Most people notice improved hydration and a plumper appearance within a few days of consistent use, though barrier-strengthening benefits build over several weeks.

Q: Is this product fragrance-free?
A: Yes, the COSRX Hyaluronic Acid 3 Serum does not contain added fragrance, making it suitable for sensitive skin.

Q: How should I store this serum?
A: Store in a cool, dry place away from direct sunlight; refrigeration isn't necessary but won't harm the product.

How to Use

Cleanse face thoroughly and apply toner if desired. Dispense a few drops of serum onto fingertips. Apply serum to face, starting from the center and working outward toward the edges. Gently massage using fingertips until fully absorbed. Follow with moisturizer to seal in hydration. Use in the morning and/or evening as needed.

Ingredients

Water, Butylene Glycol, Propanediol, Glycerin, Sodium Hyaluronate(3%), Pentylene Glycol, 1,2-Hexanediol, Diethoxyethyl Succinate, Sodium Polyacryloyldimethyl Taurate, Betaine, Xanthan Gum, Dimethicone, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium PCA, Sodium Lactate, PCA, Glyceryl Acrylate/Acrylic Acid Copolymer, Hydrogenated Lecithin, Ethylhexylglycerin, Serine, Alanine, Glycine, Sodium Phytate, Sorbitan Isostearate, PVM/MA Copolymer, Glutamic Acid, Citric Acid, Lysine HCl, Threonine, Arginine, Sodium Methyl Stearoyl Taurate, Proline, Ceramide NP, Cholesterol, Caprylic/Capric Triglyceride, Phytosphingosine, Stearic Acid, Oleic Acid, Alcohol, Tocopherol, Lactic Acid, Caprylyl Glycol, Caprylhydroxamic Acid

Standard delivery within 2–5 business days

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