Description
* COSRX The Hyaluronic Acid 3 Serum 20ml
Low molecular 3% hyaluronic acid #DewyDermSerum
Low molecular hyaluronic acid for maximum moisture absorption for intense hydration and skin barrier protection.
- Low molecular weight to penetrate deep into the skin : The small particles of low-molecular weight hyaluronic acid ensures moisture is better absorbed leaving dry and dehydrated skin dewy with hydration.
- Highly Concentrated 3% hyaluronic acid for intense hydration : High strength formula infused with 3% hyaluronic acid, an active ingredient capable of absorbing up to 1,000 times its weight in water, to provide intense, skin plumping hydration.
- Natural moisturizing ingredients for healthy hydration · Strengthens skin barrier : NMF (Amino acid complex) creates an environment similar to natural moisturizing factors in the skin to deliver healthy hydration.
- Multi-use serum with hydrating formula : This serum can be combined with any ingredient for multi-use with diverse products.
* 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 inside of the face and working towards the edges.
* Can be used morning and/or evening.









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Suri Tanaka from Singapore –
In the humid whispers of Singapore, this serum has become my oasis. Its lightweight texture sinks into my skin like summer rain, rejuvenating and softening—pure magic.
Emily from San Francisco, USA –
After using COSRX The Hyaluronic Acid 3 Serum, I am impressed by its lightweight texture and deep hydration capabilities. The serum contains low molecular weight hyaluronic acid which penetrates effectively into the skin layers, making my dry areas feel plump and moisturized throughout the day. Within a week of use, my skin appeared visibly dewy and revitalized. I also appreciate that it includes an amino acid complex for added barrier protection; it makes me feel like I’m truly nourishing my skin rather than just layering products on top.
Emma from Toronto, Canada (verified owner) –
I’ve been using COSRX The Hyaluronic Acid 3 Serum for a month now, and I can confidently say it’s made a significant difference in my skin’s hydration levels. This serum features low molecular weight hyaluronic acid, which penetrates deeply into the skin, delivering intense moisture that leaves my complexion dewy and fresh. I love how it’s infused with 3% hyaluronic acid capable of holding up to 1,000 times its weight in water; this has helped plump up any fine lines I’ve noticed. My skin barrier feels stronger too due to the amino acid complex included in the formulation.
Mia from Austin, USA –
COSRX The Hyaluronic Acid 3 Serum has truly impressed me with its lightweight formula. The low molecular weight of the hyaluronic acid allows for deep penetration into my skin, which I found crucial for hydration, especially during colder months. After just a week of use, I noticed my dry patches had disappeared and my skin felt significantly plumper and more elastic. The added amino acids seem to enhance my overall skin barrier too, making it feel healthier than ever.