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Ultra Pure High-Potency Serum 9.8% Glycolic Acid video
(349)349

Ultra Pure High-Potency Serum 9.8% Glycolic Acid

Kiehl's Since 1851

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SOLD OUT

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Details & care

What it is: An ultra-pure glycolic acid serum that will smooth and even skin.

Who it's for: Ideal for normal skin types.

How to use: Apply 4 to 5 drops to clean, dry skin in the evening. Layer with other serums as needed. Can be used once a day.

  • Paraben-free; phthalate-free; sulfate-free; silicone-free; fragrance-free; oil-free
  • Made in the USA
  • Item #7505936
  • Core Product ID 3333379RCP

Ingredients

Aqua/Water, Glycolic Acid, Glycerin, Alcohol Denat., Sodium Hydroxide, Sodium Hyaluronate, Hydroxyethylcellulose
Ingredients are subject to change at the manufacturer's discretion. For the most complete and up-to-date list of ingredients, refer to the product packaging

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Kiehl's Since 1851

Founded in 1851 as an old-world apothecary in New York's East Village, Kiehl's utilizes the finest ingredients in unique formulations to assure high-quality skin, hair and body care products. The company's unique, extensive background represents a blend of cosmetic, pharmaceutical, herbal and medicinal knowledge developed and passed on through the generations.

Reviews

(349)3494.6 out of 5
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Most helpful positive review

June 19, 2026

Finally cleared my stubborn congestion

[This review was collected as part of a promotion.] It’s a super thin, watery texture that sinks in instantly. No scent at all, which I love. After two weeks, my skin feels much smoother and the dullness is gone. Minimalist but effective.
mia_w40

Most helpful critical review

Apr 29, 2024

Ouch!

I bought this product a month ago and have been using a small amount nightly. Unfortunately with the warmer temps and sun my face began having a burn reaction. It created large red blotches on my cheeks and below my eyes that are very painful. It seems like a mixture of a chemical burn and sun burn. I didn’t think this would be a problem since I have only been applying the product at night. I’m pretty bummed because I wanted to love this product but unfortunately will not be able to keep it.
E126

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5 stars69%
4 stars24%
3 stars6%
2 stars1%
1 star1%

Pros:

Cons:

Current reviews don’t mention any.
June 19, 2026

Finally cleared my stubborn congestion

[This review was collected as part of a promotion.] It’s a super thin, watery texture that sinks in instantly. No scent at all, which I love. After two weeks, my skin feels much smoother and the dullness is gone. Minimalist but effective.
mia_w40
June 19, 2026

Finally cleared my stubborn forehead bumps

[This review was collected as part of a promotion.] It’s very thin and watery, which I like because it sinks in instantly without any weird scent. My skin looks so much brighter and the rough texture on my cheeks has smoothed out noticeably.
olivia_t52
June 13, 2026

Finally cleared my stubborn texture

[This review was collected as part of a promotion.] This serum is super thin and unscented, which I love. After two weeks, the tiny bumps on my forehead are gone. My skin feels so smooth, but definitely start slow to avoid any tingling.
lisa_w9
June 13, 2026

Smoothed out my stubborn chin bumps

[This review was collected as part of a promotion.] This watery serum literally resurfaced my rough chin overnight. It has a slight tacky finish but no annoying added fragrance. My skin looks so glowy now.
jason_b
June 5, 2026

Finally cleared my stubborn congestion

[This review was collected as part of a promotion.] It has a watery, scent-free texture that absorbs instantly. After two weeks, my skin feels noticeably smoother and those tiny bumps on my forehead are finally gone.
kevin_h33
June 1, 2026

Finally cleared my stubborn texture

[This review was collected as part of a promotion.] This serum is so lightweight and has zero fragrance, which I love. After two weeks, my skin feels noticeably smoother and those tiny bumps on my forehead are actually gone.
amy_j31