COSRX

The 6 Peptide Skin Booster Serum

17 Reviews

• khj0410

  Apr 12, 2025 (UTC)
  Dry SkinSensitive SkinAcne Skin

  Review under verification

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  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  A gentle and versatile toner that provides some hydration after use (slightly runny texture)

  Cons

  The packaging is quite flimsy. Within 1-2 days of purchase, the opening separated as shown in the photo, so I'm just using it opened. While it claims to improve wrinkles and brighten skin, I can't really tell if it's effective in those areas

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• 징거뿡

  Mar 20, 2025 (UTC)
  Combination SkinSensitive 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  1. Perfect as a daily item with its moisturizing and lightweight feel! When you apply this, it absorbs into the skin without any stickiness, leaving it hydrated. The light texture allows for multiple applications without feeling heavy, and the hydration lasts long, making it great for both morning and night use. It's especially satisfying as it works gently on sensitive skin without causing irritation. 2. Enhances absorption as a skin booster for the next steps Using this product first seems to improve the absorption of other skincare products applied afterwards. It really does its job as a skin booster, seemingly maximizing the effects of the products in the following steps.

  Cons

  1. Peptide and brightening effects are still subtle While the hydration is definite, I honestly can't say much about the peptide or brightening effects. It's difficult to notice immediate changes, and it seems like long-term use might be necessary to see results. This aspect was a bit disappointing, but I think consistent use might prove helpful.

  Tip

  Pro tip! Try using it as a skin pack Saturating cotton pads and using them as a skin pack greatly enhances the soothing effect. This method is especially recommended when your skin is sensitive or feeling hot, as you can feel a cooling effect and the moisture lasts longer.

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• winter6363

  Aug 1, 2024 (UTC)
  Combination Skin

  Review under verification

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  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  It's fragrance-free and lightweight. Absorbs well and provides good hydration.

  Cons

  Causes some eye irritation. Due to its lightweight texture, it tends to run quite a bit. Personally, I find one application insufficient, so I usually apply it two or three times. After using it for about two weeks, I'm not sure about its brightening effects.

  Tip

  At first, just apply it normally. Later, you can soak a cotton pad with it and leave it on your skin - it keeps your skin hydrated and even helps smooth out fine lines.

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• 뀯웅

  Mar 18, 2024 (UTC)
  Combination SkinSensitive 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  Blemish-prone, sensitive, combination dehydrated skin Medium skin tone (21-22) Received on March 8th Used morning and evening for 10 times (5 days) [Brief Key Points Review] - Eco-friendly packaging without tape and detailed recycling instructions make for a pleasant experience even before use (Great craftsmanship, perfect for gifting) - Beautiful lid detail, very nice - Consistency between toner and serum + feels like a drop of oil - Recommended for those with immediate deep dryness and surface oiliness after cleansing (Not recommended for blemish-prone skin) When layered, it gives a plumping feeling, leaving skin texture soft

  Cons

  However, for those with sensitive, blemish-prone skin, it's better to apply only once and let it absorb I experienced occasional breakouts Although skin texture improved, it's disappointing... + Additional review on brightening and anti-aging It's difficult to confirm brightening and anti-aging effects with just this serum product

  Tip

  For sensitive, blemish-prone combination dehydrated skin: 1) Absorbs well after a light water-based toner 2) Maintains hydration well when applied afterwards

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• 갬쟈

  Mar 18, 2024 (UTC)
  Combination SkinSensitive 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  This is my honest review after using the product consistently for two weeks! 1) Packaging I personally love the packaging. The main container is simple, with a transparent cap on top and COSRX embossed on it, which I find oddly appealing. I appreciate that it's not just a simple printed design. 2) Texture It's a serum-type product that's closer to a toner. It has quite a fluid consistency and feels lightweight without much viscosity. It's transparent and has almost no scent. (The fragrance is so subtle that I highly recommend it for those sensitive to smells.) 3) Application and Feel As you can see, it has a light and hydrating feel. I personally don't like heavy-textured skincare products, but this one is lightweight yet moisturizing. To be honest, I was most satisfied with how it felt on my skin, even more than the packaging or texture. 4) Base Makeup Application When applying makeup afterwards, I didn't notice any pilling or other issues.

  Cons

  1) Effectiveness While I was very satisfied with its lightweight and hydrating qualities, I didn't really notice the wrinkle improvement, brightening, or other care benefits that the product claims to offer. The product description boasts a variety of functions beyond hydration, but even after using it consistently for two weeks, I didn't notice anything remarkable. Of course, I wasn't expecting dramatic results from a basic skincare product, but for something marketed as multi-functional, it was a bit disappointing.

  Tip

  1) Effectiveness While I was very satisfied with its lightweight and hydrating qualities, I didn't really notice the wrinkle improvement, brightening, or other care benefits that the product claims to offer. The product description boasts a variety of functions beyond hydration, but even after using it consistently for two weeks, I didn't notice anything remarkable. Of course, I wasn't expecting dramatic results from a basic skincare product, but for something marketed as multi-functional, it was a bit disappointing.

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• 치르치르 미치르

  Mar 11, 2024 (UTC)
  Combination 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  - A booster serum packed with hydration As someone with severely combination dehydrated skin, my skin peels like a shell during winter and seasonal changes. It's been so frustrating that even when I apply ampoules and creams generously, they don't absorb well and instead pill like dead skin. This booster, however, has a runny consistency like water, making it great for layering multiple times without pilling. Of course, using this alone might not be enough for dry skin, but I always followed up with a moisturizing cream, and I noticed a reduction in dryness compared to before. - Affordable price Many brands charge high prices under the guise of 'booster serum', but I appreciated the reasonable price of this one. - Informative packaging One of the things that impressed me was the packaging. Not only did it include information about ingredients and active components, but it also provided instructions on how to dispose of the container after use! I recommend this as a layering serum for those with combination dehydrated skin!

  Cons

  Although it contains niacinamide, I haven't noticed any brightening effects yet, but that might be because I haven't finished the entire bottle.

  Tip

  If you apply it generously, follow up with a regenerating cream before bed, your skin feels super soft the next morning. Given its lightweight formula, the hydration may not last long, so it's essential to apply a cream afterward!

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• yabu.G

  Mar 5, 2024 (UTC)
  Dry 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  Despite having dry skin, it didn't cause any tightness, which I really appreciate for its moisturizing effect. I stopped using my previous skincare products and exclusively used this one morning and night. It gave my face a nice glow, making my skin look healthier. I found it worked better when applied in the morning before makeup rather than at night. I also liked that it has almost no scent, absorbs well, and doesn't feel sticky or heavy on the skin.

  Cons

  I'm not sure about its effects on pores or brightening. However, I would recommend giving it a try.

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• 고구마구

  Feb 28, 2024 (UTC)
  Combination SkinAcne Skinproduct.Atopy 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  I'm a huge fan of COSRX Skin Pads, and I'm already on my nth red tub. I decided to try the green tub since I heard it's better for sensitive skin. Surprisingly, the liquid inside the green tub feels incredibly similar to the Dear, Klairs Fundamental Watery Oil Drop in terms of scent, texture, application, and effects. It's incredibly gentle, fragrance-free, and didn't cause any blemishes. I love how quickly it absorbs - I usually apply it about 4 times to feel like I've used enough. My complexion seems to be getting a bit brighter lately...!!! The container itself is very hygienic, which is a plus.

  Cons

  However, I didn't notice any dramatic effects. While it's good, it tends to run if you squeeze it onto the back of your hand, so you need to apply it from your palm. You can't apply it directly to your face like a serum! To be honest, skincare products with whitening and anti-wrinkle claims don't usually show immediate, noticeable results. You'd need ingredients that specifically target acne to see more significant effects on things like closed comedones... Personally, I probably wouldn't purchase this with my own money. I might opt for the green pads instead. It's really just an okay product - neither great nor terrible.

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• 우아한삼각룡이다

  Feb 26, 2024 (UTC)
  Combination SkinSensitive 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  I was excited to try the serum after being satisfied with the cream, and I'm happy to say it didn't disappoint! The lightweight texture is a plus. It's not a runny liquid formula, but rather a thin consistency that's easy to apply to the face. After gently patting it in several times, you can feel it absorbing into the skin. It helps alleviate deep dryness while simultaneously making your skin feel hydrated. It's a solid, reliable product. If you have extremely dry skin, using this alone might not be enough, but it works well as a light, quickly-absorbing toner. The scent is nearly non-existent, which is perfect for someone with a sensitive nose like me.

  Cons

  As for brightening effects, I didn't notice anything significant. Maybe my complexion looked a bit brighter...? But it wasn't particularly noticeable.

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• 짜요짜요5678454

  Feb 22, 2024 (UTC)
  Combination 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.

  OK

  Reviewed by The Hwahae Testers

  This review was written by The Hwahae Testers 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. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

  OK
  Pros

  The texture initially seems thin when pumped onto your hand, but once applied to the face, it's somewhere between fluid and bouncy. I love that it doesn't feel sticky. It absorbs well when gently patted into the skin, which is great. You can use it without issues in spring, summer, and fall. In winter, it's usable as long as you don't rely on it alone! First off, it's not sticky, so that's a pass! The pump dispenses just the right amount, and there's a slight ginseng or red ginseng scent - a bit herbal, but not overpowering. That's good. The quantity is generous, so it should last a while. I didn't experience any blemishes or issues after applying it, so it's pretty good.

  Cons

  Naturally, given its characteristics, using it alone in winter might be challenging. But if you ask me whether I saw results, I can't say I did. Maybe it's because I've only been using it for a week since I received it... It claims to brighten and improve wrinkles, but I haven't noticed any striking effects yet.

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