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The Hyaluronic Acid 3 Serum

COSRX

Current Price $25.00
0.67 oz
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Highlights

  • Hyaluronic acid
  • Best for: Normal skin

Details & care

What it is: A highly concentrated 3% hyaluronic acid serum that hydrates, plumps, soothes and supports the skin's moisture barrier.

What it does: The serum helps infuse skin with hydration, strengthening the skin barrier and giving your complexion a lasting glow. it locks-in moisture to support the moisture barrier and leave skin plumped, hydrated and soothed.

How to use: After cleansing, during the serum phase, apply a few drops of the serum onto the skin. Use fingertips to gently massage and absorb the serum, starting from the center of the face and working towards the edges. It can be used in the morning or evening.

  • 0.67 oz.
  • Item #10133851

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Reviews

(120)
4.8 out of 5
Write a Review

Most helpful positive review

Jan 3, 2025
This is the serum!
I’ve been on the search for a really good hyaluronic acid serum and this is it! I’ve been getting a filler as I age and flying a lot so my skin is losing its elasticity as I also am an athlete. My face was instantly plumper using the serum. I had compliments after just a few days
Dayna Clama
Verified purchase
2found this helpful

Most helpful critical review

Dec 20, 2025
This item comes in a
[This review was collected as part of a promotion.] This item comes in a dark black bottle for a reason, yet I used it no more than 8 times and it was already empty. It appears the bottle was filled less than halfway from the start. I’m extremely disappointed by the lack of honesty from this company. While the product itself is effective, the misleading packaging and underfilled bottle have pushed me to look for another Korean alternative
Lola E.
Reposted from cosrx
5 stars
84%
4 stars
11%
3 stars
3%
2 stars
1%
1 star
1%

Pros:

Cons:

Current reviews don’t mention any.
Sort by Most Helpful
Size
Dayna Clama
Verified purchase
Size purchased: Small
Jan 3, 2025
This is the serum!
I’ve been on the search for a really good hyaluronic acid serum and this is it! I’ve been getting a filler as I age and flying a lot so my skin is losing its elasticity as I also am an athlete. My face was instantly plumper using the serum. I had compliments after just a few days
2found this helpful
Cherie L.
Reposted from cosrx
Mar 21, 2026
Liquid miracle
[This review was collected as part of a promotion.] This serum goes on smooth, is quickly absorbed and extremely effective. My pores immediately appear smaller, and my face is glowing, appears nourished and youthfully plump.
Danielle M.
Reposted from cosrx
Mar 21, 2026
Product was very nice, worked
[This review was collected as part of a promotion.] Product was very nice, worked great on my skin especially around my eye area but, there was hardly anything in the bottle so I would not purchase again.
Thomas S.
Reposted from cosrx
Feb 20, 2026
Great product. I love it.
[This review was collected as part of a promotion.] Great product. I love it. Makes my face feel soft.
olivia t.
Reposted from cosrx
Feb 11, 2026
Excelente!
[This review was collected as part of a promotion.] Un producto recomendable, se siente perfectamentr la hidratacion. Es un suero q se siente que hidrata la piel de la cara con una pequeña cantidad es suficiente.
Lajepp
Verified purchase
Feb 11, 2026
half empty bottle?
I liked the product but it literally lasted a month, I was very disappointed. Won’t buy again.
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The Hyaluronic Acid 3 Serum
COSRX
Current Price $25.00