Name: Powerful-Strength Vitimin C Eye Serum
Brand: Kiehl's
Rating: 4.16 (58 reviews)

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This is a Health Functional Food certified by the Ministry of Food and Drug Safety (MFDS) of Korea, designed to help maintain and improve your health.

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.

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키엘

Powerful-Strength Vitimin C Eye Serum

Feels Harsh on Skin

Pills on Skin

Absorbs Well

Causes Allergic Reactions

Disrupts Oil-Moisture Balance

Slippery

Overpowering Smell

Easily Absorbed

Feels Comfortable

Not Irritating

Easy to Apply

No Eye Irritation

Rich

Removes Wrinkles

Consistency is the answer. Those who find sunscreen application bothersome or find it wears off quickly should apply it only at night!

Well, if it was a little cheaper... And this, I'm trying to conserve it, but it feels like it's oxidizing when I use just a little bit at a time...
You need to wipe off the residue at the opening well, it's hardened at the end!

This is good. It's expensive but effective.
To be honest, I don't really like department store brands. I'm not sure if the effects are that different.
But this one is a bit different! When you apply it to the eye area and Nabi Zone, you can see a difference in about a week! When you apply it when the fine lines are turning into deep wrinkles, the improvement is visibly noticeable. Highly recommended!
I repurchased it as well.

파워풀 비타민C 아이세럼

If there's a sale and the price becomes more affordable, I'd recommend this vitamin C product for those with vitamin C-sensitive skin who want to try a vitamin C product.

The price... I didn't realize it would be this expensive; and haha, the immediate brightening effect... that was due to the titanium dioxide in the formula... But among Kiehl's products, this was the second-best option for me after the Calendula Toner.

I tried using the sample and was surprised to find that it had a slightly primer-like texture, giving it a buttery, silky feel. The vitamin C stimulation usually appears on my skin the very next day, and I thought it might not be good to use it for too long after opening, so I applied it not only under my eyes but all over my face. The next day, there was not a single blemish, and my skin looked unusually bright and my pores seemed a bit smaller. I thought there would be some irritation since I felt a warming sensation when applying it, but there was no irritation at all... What is this? What is this?? I saw the instructions saying to use it in the morning too, and I was amazed to see the immediate brightening effect on my skin after using it. I think I'll keep using this product consistently.

While there is only one active ingredient, the fact that there is even one is a bit disappointing. It also doesn't seem to be effective for dark circles.

The pump-style packaging allows for hygienic use, and it was also convenient to use. It didn't feel too oily and applied well around the eyes without feeling greasy, which I liked.

The price is a bit disappointing considering the volume, but I bought it last December and have been using it every night, and it's still not finished even after ten months, so it doesn't feel overly expensive!

It's not light, but it has a good application, so I've been using it consistently. As it's an eye cream, I'm not sure if there are dramatic changes, but if my eye wrinkles haven't gotten deeper compared to last year's end, I think it's fine.

1. Although it is called a serum, it is in a cream form. It may be a bit heavy for oily skin, so I recommend using it only in the evening.
2. Unlike regular serums that get absorbed quickly, it has a feeling of absorption and coating, so the finish is a bit sticky.

1. It is hygienic and easy to use as it is an airless pump-type container.
2. I have been using it well without any trouble, as I have oily skin and eye creams can sometimes cause acne around the eyes.
3. It has good spreadability.

There's not really any downside, but it would be better if the volume was a bit larger.

It doesn't feel sticky, which I like. I've been applying it around my eyes and the sides of my mouth, and I'm satisfied with it.

There is a warm sensation and eye irritation that causes tearing. However, using a smaller amount significantly reduces the irritation.

The Hwahae Trial Reviewer did not mention anything about the scent, but when I looked at other Sephora reviews, it seems there is a slight metallic smell. It might be due to the oxidation of the vitamins, or it could be normal. The metallic smell is quite strong and lingers for hours after application, which is personally very off-putting for me, so I can no longer use this product.

Despite all these drawbacks and the price, I did not notice much improvement in my dark circles or wrinkles.

* Faded dark circles, faint laugh lines
* 7-day sample from Sephora (actually lasts much longer than 7 days)

Moisturizing. Only a very small amount is needed.

When I applied it, I felt a rather strong heat sensation that startled me.

The product feels moisturizing and plump, giving a sense of replenished skin.

When I first started using it, it stung a little, but I didn't have any skin issues. As I continued using it, it became fine.

The area around my eyes was too dark, so I started using this product, and after using it for more than two weeks, my complexion has definitely improved. The vitamin C component seems to be keeping my skin healthy.

It's a bit thick and has a heavy feeling.
Please refer to this before purchasing!

I really like that it contains highly concentrated vitamin C!

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.

Apply a small amount by gently tapping it with your fingertips, focusing on the dark circles. Since it contains tripeptide, I've also been applying it to the laugh lines around my mouth in addition to the eye area, as it seems to be effective there as well.

1. The 15ml size is personally a bit small, but since only a small amount is needed, it should last a long time.
2. While it has a soft, powdery finish, I personally don't feel it has much oiliness or moisture. This may be a downside for those looking for a rich, creamy texture.

1. While there are many eye creams with a sticky finish, this one has a soft, powdery finish (especially good for summer).
2. It is fragrance-free.
3. A small amount spreads and applies well.
4. The pump packaging helps preserve the active ingredients better and allows for more hygienic use.
5. The opaque plastic container, rather than a glass jar, also seems to help maintain the ingredients.
6. ⭐️Most importantly, when applied around the eyes, it is comfortable and does not cause any stinging or tearing.⭐️