COSRX The Hyaluronic Acid 3 Serum – Deep Hydration & Skin Barrier Support | 3% Hyaluronic Complex (20ml)
COSRX The Hyaluronic Acid 3 Serum – Deep Hydration & Skin Barrier Support | 3% Hyaluronic Complex (20ml)
COSRX The Hyaluronic Acid 3 Serum – Deep Hydration & Skin Barrier Strengthening (20ml)
A lightweight yet intensely hydrating serum powered by a 3% Hyaluronic Acid complex to plump, smooth and moisturize dehydrated skin. Designed to deliver multi-layer hydration, this serum helps improve elasticity, reduce tightness, and strengthen the skin barrier.
• 3% Hyaluronic Acid Complex
Delivers deep and lasting hydration to all layers of the skin, encouraging a smooth, plump appearance.• Strengthens the skin barrier
Helps lock in moisture and protect skin from dryness and environmental stress.• Lightweight, fast-absorbing texture
Absorbs quickly without stickiness — suitable for all skin types, especially dry, dehydrated or sensitive skin.• Helps reduce fine lines caused by dehydration
Skin appears smoother, fuller, and more refreshed with consistent use.• Ideal for everyday use
Works well alone or layered with other serums in your routine.How to use : After cleansing and toning, apply 2–3 drops to the face and neck. Follow with moisturizer. Use morning and night.
Why you'll love it : If your skin feels tight, dry, or lacks glow, this highly concentrated hyaluronic formula gives instant hydration while improving long-term moisture retention. Perfect for achieving smooth, plump, healthy-looking skin.
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About the product
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Frequently Asked Questions
Are your products authentic and purchased directly from the brands?
Are your products authentic and purchased directly from the brands?
Yes, all our products are 100% authentic and purchased directly from official distributors or brand partners. We do not sell copies, counterfeits, or parallel market products.
Is this product suitable for sensitive skin?
Is this product suitable for sensitive skin?
Most of our products are gentle and formulated with skin-friendly ingredients, but sensitivity varies from person to person. We always recommend checking the ingredient list and performing a patch test before full application.
How long will it take to see the results?
How long will it take to see the results?
Results depend on the type of product and the specific needs of the skin. Generally:
Moisturizing products → immediate results in 1 week
Acne and skin texture care → 2 to 4 weeks
Skin lightening and hyperpigmentation products → 4 to 8 weeks
Anti-aging products → 6 to 12 weeks
Consistency is key to achieving the best results.
Can I use this product with my current skincare routine?
Can I use this product with my current skincare routine?
Yes, most products integrate easily into existing routines. Each product page also lists the ideal routine step and what it pairs well with, to help you use it correctly. If you have any questions, you can ask us for personalized advice at any time.
What is the expiration date and how should I store it?
What is the expiration date and how should I store it?
Unopened products generally last 24 to 36 months, and once opened, most have a shelf life of 6 to 12 months. Store in a cool, dry place away from direct sunlight to maintain effectiveness.



