COSRX The Vitamin C 23 Serum White 0.68 fl oz with 23% pure vitamin C for skin elasticity
COSRX The Vitamin C 23 Serum 0.7 oz
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COSRX

COSRX The Vitamin C 23 Serum 0.7 oz

3,877 ratings

Key item features

  • A high 23% concentration of pure vitamin C effectively fades dark spots, post-acne marks, and hyperpigmentation.
  • Helps to smooth fine lines and roughness for a refined, even complexion.
  • Shields skin from environmental stressors that can cause premature aging.
  • Infused with hyaluronic acid to keep skin moisturized and plump while it brightens.

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Customer ratings & reviews

4.1 out of 5 stars
stars
3,877 ratings3,676 reviews
How item rating is calculated
  1. 5 stars50% (1,941)
  2. 4 stars26% (1,018)
  3. 3 stars14% (543)
  4. 2 stars6% (215)
  5. 1 star4% (160)

Reviews summary

Pros

  • : Gives skin a healthy, radiant appearance.
  • : Absorbs into skin without residue.
  • : Absorbs rapidly into the skin without residue.
  • : Provides good quality at an affordable cost.

Cons

  • : Product has a potent smell that may be off-putting.
  • : Serum takes time to penetrate and leaves residue.
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Showing 1-3 of 3,676 reviews

Oct 8, 2026
Reviewer name: Christina R.
5 out of 5 stars
5 out of 5 stars review

Love this! Gentle on my

[This review was collected as part of a promotion.] Love this! Gentle on my skin and a great price point

Review from cosrx
Helpful?2VK85PCD362D1410548182
Oct 3, 2026
Reviewer name: Evelyn D.
5 out of 5 stars
5 out of 5 stars review

It's the number one product

[This review was collected as part of a promotion.] It's the number one product for my skincare routine. I love COSRX

Review from cosrx
Helpful?2VK85PCD362D1410548182
Sep 30, 2026
Reviewer name: Debora M.
5 out of 5 stars
5 out of 5 stars review

I honestly wish I had

[This review was collected as part of a promotion.] I honestly wish I had taken a picture of my skin prior to using your product. But let me tell you there is such a difference and I'm ecstatic. They finally I have found something that's gonna help. I have taken care of my skin, my whole life and within the last year, I have received horrible allergic reaction reactions that left scarring and this is devastating to me. A coworker shared your product and I had nothing to lose. I can't tell you how I feel seeing my face almost being back to normal the same clear skin that I have taken care of for so many years all I can say is thank you

Review from cosrx
Helpful?2VK85PCD362D1410548182
Current price is Now $16.92
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Sold and shipped by Lighthouse Beauty
4.604498977505113 out of 5 stars
4.6 stars out of 5, based on 4905 seller reviews(4.6)
Extended holiday returns
Free Holiday returns until Jan 31