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Kiehl's Powerful-Strength Line-Reducing Concentrate - 1.7 oz.

You’ve aced Skincare 101: You drink plenty of water, log eight hours of sleep a night, and diligently apply (and reapply) SPF. But to get your advanced degree, you’ll want to invest in a targeted antiaging serum like this one from Kiehl's. Loaded with vitamin C and other potent ingredients, it smooths, brightens, and tones skin.

Kiehl's Powerful-Strength Line-Reducing Concentrate - 1.7 oz.
3.9 out of 5 stars, based on 1,236 Reviews 1,236 Reviews
3.9 out of 5 stars
5 Star
453
4 Star
399
3 Star
267
2 Star
71
1 Star
46
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I didn't see a difference
Sampled

I honestly didn't see a difference using this serum. I think I really need stronger acid serums in order to reveal my best skin. I'm not a fan of Kiehl's in general - I think most of their money is spent on marketing, not on the actual products themselves.

1
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meh

I wasn't too impressed - tho I don't have that many lines I didn't see anything improved. I wouldn't purchase this product.

1
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Unpleasant tingle and greasiness

I tried this twice and am not pleased. It leaves my skin burning for about ten minutes after use and it's not a pleasant feeling. Also, I find this formula too greasy. I don't honestly believe vitamin c really makes any cosmetic difference to one's skin anyway, so this review is not based on that.

1
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No Effect Noticed

I tried the sample of this product, but I didn't notice any effect whatsoever. As many of the other reviewers mentioned, it also did not absorb well into the skin.

1
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Meh...

This product didn't really do anything for me but make my eyes itchy. Didn't notice any line reducing results. Definitely won't be buying.

1
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ineffective
Sampled

This product didn't seem to do anything. Maybe it would have, but the sample size was so small it was hard to tell if there would have been some kind of benefit if I had used it longer. On the plus side, it did not irritate my skin. I tried it on a forehead wrinkle and saaw no improvement.

1
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Not sure I need; not sure it works
Sampled

This felt nice when I applied it, but I really couldn't see any difference after a few weeks of use. Lines/wrinkles not a major problem for me yet, though, so maybe I'm not the right candidate for the product.

1
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not good
Sampled

I used the entire tube of this product. I never noticed a difference and the smell was horrible, almost metallic. I am kind of sensitive to smells so I gave it a chance to see if it was 'just me'. No, It kinda tingled on my skin at first and then left this horrible smell on my hands in which I had to wash and then it made me feel like I had to wash my face. Not for me.

1
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Not my favorite product
Sampled

I'm getting up there in age (I'm 26), and I'm currently in the market for anti-wrinkle products. My skin is a fickle beast, and because of that I need something for sensitive skin, acne and dry skin.

Unfortunately, this product made my skin burn and turn red. I still had to use a moisturizer afterwards, and when I woke up the next day, I didn't really see a difference. My skin is still uneven, and I did experience some minor clogged pores.

1
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Middling strength, middling results
Sampled

Other Vitamin C serum at 20% strength are much better, I use one regularly. Try Benev's version.

1
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