The Hyaluronic Acid 3 Serum


Low molecular 3% hyaluronic acid #DewyDermSerum

What it is :  

Low molecular hyaluronic acid for maximum moisture absorption for intense hydration and skin barrier protection.

Why It's Special: 

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.

Size: 20 mL / 0.67 fl. oz

Product FAQ

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.

[Key Ingredients]

▶ Hyaluronic Acid
- Strong water retention ability that binds up to 1000 times its weight in moisture
- Recharges the skin with hydration alleviating dryness and restoring the skin's moisture balance

▶ NMF (Amino acid complex)
- Maintains hydration in the skin
- Improves skin barrier protecting against dryness and dehydration

▶ Ceramide
- A lipid component that makes up the skin barrier to improve skin barrier function
- Protects the skin from external stressors
- Prevents the evaporation of hydration

[Full 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

Customer Reviews

Based on 5 reviews
Luxurious Feel

I just finished my first bottle of this serum and I really love it! It's my first hyaluronic acid serum and I am hooked. I really liked the feel of this serum, it has a thick texture that feels luxurious and makes my face feel really smooth. I like that it also has ceramides. I think it helped reduce the redness of my face. Overall I enjoyed using this serum even though it is pricey for the amount you get. I used this in the morning. The other Cosrx products in my routine are the snail mucin essence and cream.

Monika Zdobinska
Plump skin

Love it! But firts thing first, I was really excited when I saw COSRX launching HA serum, because such product was missing in their line. The HA 3 serum is simply great! The consistency is in the middle between watery and thick one, and fells very gently on the skin. I appreciate that the product is scentless. I have very sensitive skin, using this twice a day and it does its magic. My skin feels nicely nourished and hydrated and bright. I definitely recommend to try this product to everyone. You can’t go wrong with HA in your skin routine.

Primrose Tricker-O’Dell
I thought my skin looked great BEFORE I tried this….

I haven’t tried a hyaluronic acids serum before, and I was given a bottle to try for survey participation. I mostly use Cosrx products in my daily skincare regimen, items from the snail and cica collections.

I have to say, this serum is amazing. I have sensitive, combination skin that’s also prone to redness (fitzpatrick skin type 2.) Using it twice a day with the rest of my regular regimen has almost eradicated any redness, smoothed my skin texture, and seems to have balanced my oily and dry zones (hormonal breakouts notwithstanding.)

If you haven’t tried a hyaluronic acid serum yet, DEFINITELY try this one. My stupidly sensitive skin is totally happy with it and looks even better for it. 10/10 have already recommended it to everyone I know!

Adriana Salazar-McKinney
Love it!

I actually got this as part of a FAQ giveaway. It honestly reminds me a lot of the glow recipe serum. It really hydrates the skin and gives a nice glow. Its a great product for a great price!

Hanna Alex
A delight for sensitive skin

Absolutely love this product. I was previously using the "Hydrium Triple Hyaluronic Moisture Ampoule" and this one has a nice serum-y consistency and feels so great on my skin. It's like the hydrium version but slight thicker and amped up. I have very allergic skin, prone to eczema and contact dermatitis, and this product creates a lovely barrier to keep my skin calm, moisturized, and plump. I've already seen my skin be less red since the barrier is more protected. I use this along with the snail mucin essence, and the ceramide gel cream -- great combo!!