COSRX The Hyaluronic Acid 3 Serum Reviews

Name: The Hyaluronic Acid 3 Serum
Brand: COSRX
Rating: 4.47 (188 reviews)

4.47

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12 Reviews

꽃부리사랑
Mar 3, 2025
Combination SkinSensitive Skin
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Pros
In January 25, used only in the evenings for 3 days 🌳Skin type/close to combination, highly sensitive, allergic, whiteheads 🌳Firm texture, does not run down Absorption is average - slightly sticky after application, but disappears over time Slight glow on the skin after application
Cons
The product contains many ingredients that can be irritating to sensitive skin and are not good for it. While the reviews were good, which is why I purchased it, the experience was as expected...😭 After applying the product, there was itchiness, stinging skin irritation, and an overall reddening allergic reaction. On the third day, the skin became so stinging that I quickly rinsed it off with just cold water without using a cleanser, and then heavily applied my usual soothing cream like a face mask before bed. The next day, small red bumps had appeared, so I applied a skin ointment and discontinued use after applying it only in the evenings for 3 days. The dropper is too short, requiring two pumps to dispense the product. The black packaging also makes it difficult to check the contents.
Tip
Individuals with relatively healthy skin rather than sensitive, problematic skin would likely benefit more from using it. In fact, when I gave it to my sister, who experiences no adverse reactions to any cosmetics, she used it without any issues. However, she did mention that it felt a bit drying, likely due to her age and the current season.

거친레몬
Dec 12, 2024
Oily 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
The shape of the exterior is very luxurious. I like the matte black lid. And the dropper format makes it easy to use neatly. The serum's dropper format is certainly good. After applying the skin, the moisture is doubled when applying the serum and then the cream. I only applied it to the left side to compare, and the difference is clear. The serum has a slight stickiness, but it's a pleasant degree. The flow is not a steady stream, but rather a gradual dripping. It is easy to absorb.
Cons
While the size is a bit small, that could be considered a drawback. It would have been better if it was 30 millimeters.
Tip
It seems that pounding helps the absorption to become much faster and deeper. Tapping with your fingertips and doing acupressure also improves blood circulation, which is a two-for-one benefit.

칰순
Oct 1, 2024
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
The slightly runny viscosity means it doesn't immediately drip off, and when applied, it feels moisturizing. This is one of the products I feel I purchased well, as it seems to have a decent level of moisturizing power after I apply toner and serum.
Cons
While it's been fine so far (after 2 weeks of use), the dropper is a bit short, so some users have reported feeling inconvenienced when trying to use the last of the product. I'm a bit concerned about how to use it properly in that situation.

헤아니
Mar 4, 2024
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.
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
Even after using it, there is still no irritation on my skin, so I think I can use it consistently. The serum doesn't flow down quickly, making it easy to apply.
Cons
Compared to lightweight moisturizing serums, there is a slight oily sheen right after applying it, so it may not be suitable if you prefer a refreshing feel.

바람의 빛깔
Jun 24, 2022
Normal 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
1. Skin Type and Preferred Type Closer to normal, with a tendency towards dry skin! I prefer hydrating products over oil-based ones, as I like my skin to be moisturized but not heavy. I apply skincare products like toner, serum, and cream all year round, even in the summer! 2. Texture The texture is thick and non-flowing. However, it absorbs quickly into the skin without leaving a residue. 3. Usage Experience The dropper is a bit short, which was surprising at first, but one full dropper is enough for each application. About three drops are dispensed, which I apply to my cheeks and forehead to cover my whole face. My skin doesn't usually break out, but the only product that didn't work for me was a rich cream-type, as I was worried it would be too heavy. But it absorbed quickly and provided just the right amount of hydration. I recommend using this only in the evenings during the summer.
Cons
In the winter, it may not provide as much intense hydration and moisture as you might expect. I would recommend this for those who want a simple, lightweight product, or for dry-skinned individuals who need a hydrating serum in the summer.
Tip
Massaging it into the skin in the evening helps it absorb even better.

bong-iya
Jun 24, 2022
Dry 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
After using it for a few days, the tightness of my skin after cleansing has decreased significantly. It has a transparent and viscous texture, so it can be applied directly to the face without running down, and the moisturizing feel is comfortable to use. And since I'm quite sensitive to scents, I was pleased that it's almost fragrance-free. The cute bottle that's visible as soon as you open it is a plus!
Cons
There was a bit of white residue on the dropper part from the beginning, which was a bit startling. And it took me a little while to absorb. The stickiness lasted quite a long time, and while it might not be an issue in the summer, it seems a bit lacking to use on its own in the winter. Although I don't have very sensitive skin, a pimple or two did pop up after using it, but they went away after a few days of continued use.

라이오넨
Jun 23, 2022
Combination 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
🧴Skin Type: Neutral to Dry-Combination 🧴Usual Skincare Routine: Bathroom Essence-Toner-(Cica Essence)-Aloe Gel-Cream, I applied the mentioned essence after toner. 1. Texture🧪 It applies smoothly! It's not a runny, watery texture that just flows, but I can feel that I'm applying something. I liked the sensation. The dropper format made it easy to apply as well. My mom also used it and said it spreads thinly yet adheres well. 2. Hydration🫧 I've been really busy lately, so my sleep pattern has been a mess,, and I haven't been eating well, so my skin condition was not good 😔 But I felt like my skin condition improved a lot after using this product! Those pesky wrinkles that appear when you're tired, 🥺 they got much better after using this! 3. This may just be me, but... After using this product, my facial oil decreased!!!😎 I think it's because the oil-moisture balance is well-suited, and the oil has decreased. But I'm really glad and amazed that the oil decreased ☺️
Cons
A bit sticky feeling... These days there's a lot of humidity, and even without anything, it feels sticky, but when I apply this product, it feels even stickier 😞 Other than that, there are no downsides! I intend to repurchase 💗

너구링링b
Jun 22, 2022
수부지Sensitive 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
A product with good moisture without irritation. It was good that there was no trouble and no irritation was felt. It absorbs quickly and maintains moisture for a long time, so it's good to apply before morning makeup. Since it traps moisture, the oil in the afternoon doesn't rise as much and the makeup feels like it's absorbing well? It absorbs quickly and has a slightly viscous texture (not a dripping formula), so it's a bit difficult to spread evenly if you drop it on your face, so it was more convenient to drop it on your hands and spread it. As it is non-irritating and gentle, it was more satisfactory to use it together with the tea tree oil I was using before, without any burden. It's a product that pairs quite well with other products. **I have the intention to purchase
Cons
There were no disappointing aspects of the product itself, just some additional things (the product container). -Inability to check the contents -The bottle is short and stubby, so the dropper is also short, so one dropper may not be quite enough >> It may be slightly inconvenient.

건조하지만갠차늠
Jun 21, 2022
Dry 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
I have thin, dry skin and get pimples every 2-3 months. Since the main ingredient is hyaluronic acid, after applying the serum and it absorbs, I feel a plumping, moisturizing sensation. The texture has some viscosity but isn't watery - I pat it in and it absorbs nicely, leaving a supple, bouncy feel to the skin. It's not sticky or tacky at all. It's like there's a bouncy, cushiony sensation when I press on the skin. I've just added this serum to my existing skincare routine, and the next day after cleansing, my skin feels so soft and smooth. It's like when you do an intensive overnight treatment, and the next morning your skin feels nourished and replenished. The red marks from my past pimples have significantly faded and reduced in size, thanks to this serum. I'm absolutely in love with it!
Cons
As a dry skin type, I've tried various hyaluronic acid serums and ampoules, and among the affordable ones I've used, this is one of the best. There's no fragrance, which is great, and it doesn't leave a sticky, tacky feeling on the skin. I also haven't experienced any breakouts or congestion from using this product.
Tip
On the days I exfoliate, using this to deeply hydrate my skin is just amazing!

나요미르
Jun 20, 2022
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.
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
☆Scent Close to odorless There is a faint scent, but it is not from artificial fragrance and seems to come from the raw materials. It is not unpleasant. If you are not sensitive to smells, you may perceive it as odorless! ☆Texture Transparent watery texture It doesn't flow like water, but when applied to the face, it spreads very slowly ☆Moisture For dry skin, it may feel a bit dry in the middle of winter, But as a serum, it is incredibly moisturizing and plump!! I accidentally went out without applying anything over this serum, and it didn't feel tight at all. ☆Ingredients Absolutely wonderful!!! The lack of artificial fragrance is what I like the most!!!! ☆Dropper One pump of the dropper is just the right amount for the whole face!! ☆Packaging The product bottle is very luxurious and pretty!! When applying cosmetics, the lid can sometimes be slippery and inconvenient to open, but the oval-shaped lid is not slippery. For those looking for a refreshing, non-oily, and moisturizing product for the summer, this is an excellent choice. I am very satisfied!!!
Cons
☆The rubber part of the dropper has a lot of dust on it.. As soon as I opened it after delivery, the black dropper was almost white due to the dust...ㅠㅠ ☆The price of 23,000 won for 20g is too expensive...