Beauty in 2 hours or less—order online, pick up in store.

Use the following zoom and pan buttons to control the image that follows them

Kiehl's Since 1851 Ultra Pure High-Potency 9.8% Glycolic Acid Serum #1
Kiehl's Since 1851 Ultra Pure High-Potency 9.8% Glycolic Acid Serum #1

 Ultra Pure High-Potency 9.8% Glycolic Acid Serum

$40.00

or

Size:1.0 oz

Offers

(2)

Pickup and delivery options

In stock and ready to ship

Usually ships in 24 hours

Earn points on this purchase.

Details

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

How To Use

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.

Ingredients

Aqua/Water, Glycolic Acid, Glycerin, Alcohol Denat., Sodium Hydroxide, Sodium Hyaluronate, Hydroxyethylcellulose.

Shipping & Coupon Restrictions

This brand is excluded from most Ulta Beauty coupons.

See brand eligibility details

Make it a routine

Add these personalized recommendations to complete your beauty routine.

Step 1

Step 2

Current Product

Kiehl's Since 1851

Ultra Pure High-Potency 9.8% Glycolic Acid Serum

$40.00

Step 3

Similar items for you

12 items

We think you'll like

12 items

Sponsored products

12 items

Review Snapshot

by PowerReviews

400 ReviewsWrite a Review
93%
of respondents would recommend this to a friend
Ratings Distribution
Pros
No Pros
Cons
No Cons
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...

Versus
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

KIEHL'S DOES IT AGAIN

Submitted 4 years ago

By KMK1992

From Ohio

Submitted as part of a free sample program

Reviewed at

Kiehl's - Sampling

Does this company make a bad product, like seriously? I've tried a good amount of products from their line, and each has really impressed me. The Kiehl's Ultra-Pure High Potency Glycolic Acid is no exception. I have somewhat sensitive skin, so I have to be very measured when using this product, but WHEW, the RESULTS. My texture is virtually gone. As someone who has struggled with her skin now into her 30s, having a product where I can SEE the results, and FAST, is worth its weight in gold. I will continue to implement this product as part of my night-time skincare routine, and will repurchase when the bottle runs out. Bravo, Kiehls.

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?
Great Serum

Submitted 4 years ago

By Hilyt

From Nashville, TN

Submitted as part of a free sample program

Reviewed at

Kiehl's - Sampling

So far I love this serum, it feels gentle on my skin and doesn't leave it feeling dried out. I can't wait to keep using for another couple weeks to see the results!

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?
Perfect Skin

Submitted 4 years ago

By Julie

From NJ

Submitted as part of a free sample program

Reviewed at

Kiehl's - Sampling

I'm so glad that I tried this serum because my skin has never looked better! After a few weeks of regular use, I noticed so much improvement in my skin texture. My skin is now very smooth, soft, brighter, and radiant. I have also sensitive skin so was afraid at first, but this formula is so great that it doesn't burn or irritate my skin at all It's very lightweight and absorbs quickly, I use it before moisturizer every night. I definitely recommend this serum for everyone who struggles with uneven texture, or dark spots or wants to improve skin condition

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?
Great serum!

Submitted 4 years ago

By mackinly

From TX

Submitted as part of a free sample program

Reviewed at

Kiehl's - Sampling

I love this serum! Really excited to try this product and it did not disappoint! Definitely a staple in my routine!

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?
Amazing

Submitted 4 years ago

By Thelazymom

From Nc

Submitted as part of a free sample program

Reviewed at

Kiehl's - Sampling

My skin was glowing after 1 week of this!!! I am so happy, I've told my friends and family they are all getting some for Christmas!!

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

What do you want to know about this product?