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Kiehl's Since 1851 Ultra Pure High-Potency 9.8% Glycolic Acid Serum
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Summary
Highlights
The Kiehl's Since 1851 Ultra Pure High-Potency 9.8% Glycolic Acid Serum is a concentrated facial serum formulated with just seven ingredients to help step up your smooth by visibly refining skin's texture and minimizing the appearance of pores.
Benefits
- Free of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and smoothing effect
Key Ingredients
- Glycolic Acid: a naturally occurring fruit acid derived from sugar cane known to help smooth skin
Research Results
- After 1 Week, 98% Agree Skin Feels Softer* Instantly, 83% Felt Refined Texture* Smoother Skin in 1 Week**
- *Reported by consumers in a 4-week study **Expert grading in a 4-week clinical study
Item 2607984
In the evening, apply 2 - 3 drops to clean, dry skin.
Try out Kiehl's Glycolic Acid serum skin hacks: Zone treat your face by applying Glycolic Acid Serum to areas prone to roughness. Follow with your favorite moisturizer where needed. Use as an exfoliating treatment for cracked heels. Layer with Kiehl's Hyaluronic Acid Serum to hydrate & rebalance skin's moisture. Layer with Kiehl's Niacinamide Serum to to reduce oil & sooth skin.
Aqua/Water, Glycolic Acid, Glycerin, Alcohol Denat., Sodium Hydroxide, Sodium Hyaluronate, Hydroxyethylcellulose.
This brand is excluded from most Ulta Beauty coupons.
Free gift with purchase
Free gift with purchase
Online only free Acne Clearing Solution with $35 Kiehl's Since 1851 purchase (valid thru 8.2.25 on shipped purchases only. Full or partial pickup or same day delivery purchases do not qualify. While quantities last)
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Reviews
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Ratings Distribution
Most Helpful Positive Review
Not for sensitive skin ...
Upon receiving this complimentary product, I was super excited to finally get a chance to try a Kiehl's brand product. The Kiehl's Ultra-Pure High Potency Serum 9.8% Glycolic Acid arrived in a semi-sturdy red and white branded package with black lettering. The serum is enclosed in a small glass bott...
Most Helpful Critical Review
Good ingredients but didn't work well for me personally
This is the second Kiehl's product I've tried and wanted to love but just didn't have success with. The ingredients are simple, the packaging is understated and clean, and the serum is clear and watery, so in theory I should have been able to layer it under my moisturizer. For me, the product was ve...
400 results
Few weeks and smooth skin
I've used this few weeks now and noticed a difference - smooth skin. Not much difference in pores but will repurchase. Also goes well under makeup
It works
Verified Buyer
Reviewed at
I had a small rough area near my nose. After using this serum it cleared within 1 week. I use this serum at night. My skin has improved a lot since using this serum. Its a 5 Stars for me!
Ouch!
Verified Reviewer
Reviewed at
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.
Serum
Verified Reviewer
Submitted as part of a sweepstakes entry
Reviewed at
I have been using this product for almost a month but I feel this product is working or helping with my skin
You better get you some of this
Verified Reviewer
Reviewed at
This stuff is great and can be a chemical peel in a bottle. I use it 2-3 nights per weeks along with physical exfoliation and retinol every other week