Name: The Vitamin C 13 Serum
Brand: COSRX
Rating: 4.43 (552 reviews)

4.43

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8 Reviews

dbfla811
Aug 15, 2024
Combination Skin
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Pros
I've tried many different cosmetics, and this one seems to be the most effective for me! The acne scars and blemishes on my face haven't disappeared, but my overall complexion has become significantly brighter! I can really feel the effects on my skin tone, so I'll continue using this product going forward.
Cons
The texture is a bit oily, so it might be difficult to apply makeup on top of it in the morning. I only used it at night.

이느루
Apr 20, 2024
Combination Skin
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Reviewed by Hwahae Trial Reviewers
This review was written by a Hwahae Trial Reviewer who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
The vitamin C serum I used to use would make my face feel irritated and blotchy, so I was worried about it. But my daughter recommended this product, and when I tried it while comparing it to the one I used before, this one doesn't make my skin blotchy. I've been using it for about a week now, and while I'll need to use it more to see, it seems less irritating than the one I used before.
Cons
The vitamin product does sting a bit, but not too much. However, for my oily skin, it seems to have a lot of oil content. Dry-skinned people say the whitening product makes their skin feel dry, but this vitamin serum has a bit of oil content, so it takes some patting to get it absorbed.
Tip
For oily-skinned people, it doesn't absorb as well, so you'll need to apply it in small amounts and pat it in a lot for it to be absorbed properly. But I've heard a lot of people say it really brightens the skin tone.

지초야
Apr 19, 2024
Combination Skin
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Reviewed by Hwahae Trial Reviewers
This review was written by a Hwahae Trial Reviewer who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
Another great find!! The Vitamin C line has settled in as a COSRX staple! While it may have a slightly oily feel for summer use, when compared to other Vitamin C products, the ingredients and price are definitely advantages. The bottles are small, so I order two at a time as a must-have item. Vitamin C products require care when opened, as they can be affected by air exposure and sunlight, so the small size is a good fit in my opinion.
Cons
Oily for summer use? Not really...it really stings if it gets in your eyes, though.
Tip
Use it with the COSRX Peptide! Start with a lower concentration Vitamin C serum! Be sure to apply sunscreen whenever you use this!

퍼펙트퍼플
Mar 16, 2024
Combination SkinAcne Skin
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Reviewed by Hwahae Trial Reviewers
This review was written by a Hwahae Trial Reviewer who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
Applying it at night and sleeping with it on definitely brightens the skin. Also, using it together with sunscreen makes the effects even better, so I recommend it!
Cons
It feels quite sticky and oily. Wearing it during everyday life, not just at night, might be too much.
Tip
If the stickiness doesn't bother you, I recommend it. The whitening effects are definitely noticeable.

고드랭이
Feb 25, 2024
Oily SkinSensitive SkinAcne Skin
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Reviewed by Hwahae Trial Reviewers
This review was written by a Hwahae Trial Reviewer who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
The product seems to be easily absorbed due to its good spreadability.
Cons
It's a bit sticky and oily, which is a bit disappointing, but it's not bad.

새로운말미잘산호2743
Feb 6, 2024
Oily SkinSensitive SkinAcne Skin
Review under verification
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Reviewed by Hwahae Trial Reviewers
This review was written by a Hwahae Trial Reviewer who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
I tried 13 because 23 was said to be irritating, but I'm going to try 23 next!!
Cons
Right after applying, it feels dry, but over time the oiliness comes up and you can see it!!

살빠지는소리
Nov 3, 2023
Dry Skin
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Reviewed by Hwahae Trial Reviewers
This review was written by a Hwahae Trial Reviewer who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
My skin feels tighter and my pores look smaller. When I apply foundation, it doesn't get stuck in my large pores as much. My makeup doesn't get as cakey and uneven by the afternoon, and people have been complimenting my skin lately.
Cons
It feels sticky and shiny. If I apply too much, my face looks yellowish and it transfers onto my clothes or pillow, but it's still good.
Tip
If you focus on applying it to your pores, you'll see your pores tighten in 2-3 days and the effects are great. I use it every other day with retinol, and my face has gained elasticity and my freckles haven't been coming up.

도라에구몽
Aug 5, 2023
Oily SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.
Reviewed by Hwahae Trial Reviewers
This review was written by a Hwahae Trial Reviewer who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
I haven't noticed any blemishes or whitening effects yet, but I'll keep using it consistently.
Cons
The scent is a bit disappointing. It's a little oily. It suits dry skin better than oily skin.