ISOI BRIGHTENING SERUM Reviews

Name: BRIGHTENING SERUM
Brand: ISOI
Rating: 4.55 (330 reviews)

4.55

206

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110 Reviews

모묵이
Apr 28, 2025
Normal SkinAcne Skin
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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 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.
Pros
The rose scent is pleasant. The usage experience is very refreshing with this ampoule. While the moisturizing power needs to be supplemented with other ampoules or creams, I was satisfied as I really enjoy the lightweight feel.
Cons
Rather than whitening, I used it hoping to improve acne and pigmentation. However, it did not particularly help improve acne scars and pigmentation.
Tip
This is a good formulation to use in the summer.

깡묘옹
Apr 27, 2025
수부지Acne Skin
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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.
Pros
I have a troublesome oily skin type. 1. The fragrance is nice. I like rose scents, but this one is just a hair away from feeling artificial. It's not overbearing, and the fragrance doesn't linger for too long, which is good. 2. It applies smoothly and moisturizes well. It has a watery soothing gel-like texture. A single pump on each cheek is enough to use.
Cons
In fact, as everyone does, I had hoped for a dramatic user review, but it was not quite like that. However, as I have been using Hwahae and Noscara consistently, I can see that the discoloration is gradually fading.

수수수영노바
Apr 24, 2025
Combination SkinAcne Skin
Review under verification
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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.
Pros
It has a pleasant fragrance, a slight whitening effect, and is quickly absorbed.
Cons
The product is too expensive and leaves a slightly sticky feeling after application.

섬세한표범6368051
Apr 22, 2025
Oily SkinAcne Skin
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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 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.
Pros
The spreadability and fragrance have improved significantly. The renewed version seems to be more intense.
Cons
It's not there~ I've been using it before, but everything except the price is good. I'd like it to come out a bit cheaper in tube form.

토마토는과일야채
Apr 21, 2025
Dry SkinSensitive Skin
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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.
Pros
Here is a review after using the product for about 10 days! ✔️Texture/Fragrance The serum has a gel-like texture with a noticeable viscosity. After application, it leaves a more dense and bouncy finish rather than a refreshing one. The fragrance is the same rose scent as the previous Isoi products. ✔️Improvements after the Renewal First of all, the previous version of the serum would sometimes leave a film-like residue even after it was fully absorbed, but this renewed serum does not have that issue, which is great! Now I can apply it in the morning before makeup without any problems. Also, more antioxidant ingredients (pdrn, ferulic acid, niacinamide) have been added, which is a positive change. The renewed serum also feels less irritating, so it seems like a good low-irritation anti-aging option for those with sensitive skin like me. ✔️Effects The trial period wasn't very long, so I can't speak to the exact effects, but I can definitely say that the overall tone-improving effect is better than the previous version. The redness and pigmentation appear to have faded overall. As for the spot-improving effect, I'll have to use it more to know for sure, but I'm satisfied so far!
Cons
The texture's weight has increased compared to the previous version, but strangely, the dryness is felt even more..? Looking at the ingredients, various hyaluronic acid components have been added, so those who experience dryness when using hyaluronic acid products should be cautious. The previous version was effective in improving skin texture, especially in reducing uneven skin, but the renewed version had no effect on skin texture improvement, which is disappointing.

산독기독기야
Apr 20, 2025
Oily SkinSensitive SkinAcne Skin
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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.
Pros
The Isoi Brightening Serum is quite famous and I'm familiar with it from a few years ago when I used it. At the time, my skin was much more troubled and sensitive, so I didn't see much effect. But this time, I got to use it again through the Hwahae Trial Reviewers. When I first used it, the texture was slightly watery but moisturizing, and it had a faint rose scent. It was so long since I last used it, but the scent was exactly the same, which was kind of surprising. It absorbed really well into the skin and didn't feel sticky at all, so I could use it comfortably even in the morning. After fully absorbing, my skin felt very soft and smooth. After using it for about 2 weeks, I felt my skin tone became a bit more even. There was no irritation at all, no breakouts or itchiness. I especially noticed that some old acne scars on my cheeks became a bit faded. Even though it didn't completely fade my dark spots, my overall skin looked brighter and clearer. I used to need concealer, but now just a light foundation can cover any imperfections well. Most importantly, my skin felt comfortable using it morning and night, so I could use it consistently. Overall, I would repurchase it. I'd recommend it to those with sensitive skin who can't use just any product.
Cons
I tend to prefer serums that can be used alone and help reduce skin irritation, providing a supple and plump feel. However, I find them slightly lacking in terms of soothing and hydrating properties.

떠돌이화장꾼
Apr 19, 2025
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.
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.
Pros
The texture is slightly viscous, not too runny, which is great. The scent is a subtle floral fragrance, which is nice. I've been using it every evening for about a week, and while I haven't noticed significant brightening effects yet, my skin seems to absorb it well and feels moisturized.
Cons
On the first and second day of use, there was a slight tingling sensation when applying it to the skin, though it was just a very minor irritation.
Tip
Gently pat and dab the product onto your skin instead of rubbing it in, as this will result in less irritation and better absorption.

눈맞춤
Apr 18, 2025
Combination Skin
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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.
Pros
Here is a 2-week trial review. The texture is transparent and moisturizing. The faint rose scent was not unpleasant. The ingredients include: Rose PDRN, ferulic acid - skin antioxidant Arbutin - helps with pigmentation Niacinamide - aids in brightening Vitamin C derivative - helps with blemish care With these ingredients, the product helps care for blemishes. It absorbs quickly when applied, and has a bouncy, supple feel when gently patted. It immediately brightens and gives a clear, radiant look. It would pair well with other blemish care products.
Cons
It seems that since I've only used it for 2 weeks, there isn't a significant difference. However, the fragrance and application feel are clean, and there are no blemishes, so I'll continue using it.
Tip
When applying, directly squeeze it onto the skin (cheeks, forehead) so the amount is just right and it can be spread neatly. After spreading it out, gently pat it a few times and it will become firmer, giving a bouncy, elastic feel.

십만송이
Apr 18, 2025
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.
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.
Pros
Aiso products are using the cushion as the original product, and although I haven't used it much, the color and spreadability are good, so I'm sometimes looking around at other products, and I've also started using the Hwahae Trial Reviewers' brightening serum. The container is glass. It's designed to be used by pumping, which is good because it allows for clean usage. The color is not just pink, but a deep pink, which is my preference. The thing I like most about using it is the fragrance. I prefer unscented, but I like rose fragrance, so I was happy using it. Of course, it's a rose otto, but it's a bit lighter in fragrance than the 100% rose water toner I used before, as it contains purified water. The formula is a thin gel type, which is not my personal favorite, but it wasn't uncomfortable to use. And it's a colorless, clear gel. It has a clean, gel-like feel. The spreadability is gel-like, but it absorbs quickly and well, so it's good to layer the brightening serum itself, and other creams on top don't slide off and absorb well. I started using it the night I received the product, but I'm not sure if there are any noticeable whitening effects yet. I had been using a whitening product for about a month before this one. But as I was writing the review, I noticed that the faint discoloration I always had around my temples and cheekbones was no longer visible on the right side. I'm happy to see some effects from the whitening product again after a long time, but now I have to battle discoloration and wrinkles, so I'm both pleased and concerned. I haven't even used the brightening serum for two weeks, and I can see some effects, so I should diligently use it up to see the full results. I'd recommend this product if you have faint discoloration.
Cons
The disappointing aspect is the price. From the consumer's perspective, it would be ideal to find a good product at a reasonable price and in large quantities. While there is the pressure to use the product within 6 months of opening, if used daily, it would likely be consumed a month earlier.
Tip
The product is of a thin consistency and is readily absorbed, but it is better to apply it in small, overlapping layers. Please use within 6 months of opening.

Jiing_ny
Apr 18, 2025
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.
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.
Pros
Skin type: Oily/Excess sebum on the T-zone, including the forehead, in the summer/Slightly dry in the winter, with increased sebum due to dryness 💚Overall impression: A rose serum with a nice, bouncy finish ✏️Texture and application More hydrating than oily, with smooth and pleasant application When patted into the skin, it adheres nicely and has a bouncy finish, which is just my preference ✏️Fragrance The rose water scent is very prominent as soon as the product is applied This is a matter of personal preference and tolerance, and as someone who prefers unscented products, I find it a bit heavy Those who love rose fragrance will likely find it delightful ✏️Product performance Given the short one-week trial period as a tester, I haven't yet experienced any dramatic effects, especially for a brightening product like this. I think a longer observation period is necessary to properly evaluate the results If the effects turn out to be good, I'll come back and add more details
Cons
Ultimately, it seems to be the price aspect, doesn't it...? From the initial product launch, I've felt that the price-to-volume ratio is not particularly affordable, so whether I will repurchase it is something I'll have to observe further.