Ultra Pure High-Potency Serum 9.8% Glycolic Acid 1 oz.

4.6 (345)
$36.00
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Product Details

Web ID: 4633961

What It Is

A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin's glow.
  • What It Does

    With 9.8% Glycolic Acid, this serum is formulated with just seven ingredients to help visibly refine and smooth skin's texture and boost skin's glow. Free of fragrance and colorants, this concentrated serum is minimally formulated for skin absorption and smoothing effect.
  • How To Use It

    In the evening, apply 2-3 drops to clean, dry skin.
  • Clinical 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.
  • Product Features

    • 1 oz.
    • Made in USA
  • Materials & Care

    • Product labels for all quilted items (filled apparel, home textiles, and accessories) are available online.
  • Shipping & Returns

    • California and Minnesota customers call 1-800-777-0000 for Free Shipping information.
    • Please call customer service for returns.
    For complete details, see our Shipping and Returns policies.

Ratings & Reviews

4.6/5

345 star ratings & reviews

Write a review
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4
4
28 days ago
from CA
Age45-54
GenderFemale

On auto renew

I used several glycolic formulas and this serum feels good, absorbs well, and has mad a significant difference in the appearance of my forehead lines.

Recommends this product

Customer review from kiehls.com

1 month ago
Incentivized review

product ok

Undeniably, skin looks brighter. 2 weeks after I am still waiting for even skin.

2 months ago

This serum, with 9.8% glycolic acid and only 7 ing

I love Kiehl's products, and a consultant recommended I try this one. The serum is formulated with only 7 ingredients, including 9.8% glycolic acid, ensuring a simple yet effective skincare solution. I immediately felt a gentle polishing effect during the first application. The serum absorbs quickly into the skin without any stickiness and has a neutral scent. After a few weeks, my skin feels noticeably firmer. Highly recommend! The packaging is minimalistic and user-friendly, featuring a precise dropper for easy application.

  • Photo from olhap27_2263

Customer review from influenster.com

2 months ago
from Greenville NC
Age35-44
GenderFemale

Reduce fine lines!

[This review was collected as part of a promotion.] My husband loved it! Fine lines in his face were not reduced! We will reorder again.

Recommends this product

Customer review from kiehls.com

2 months ago

HOW TO USE THIS? SHOULD I USE THIS EVERYDAY

[This review was collected as part of a promotion.] Should i use this everynight? I just buy this and i dont know if i can use this everyday, or just 2-3 times a week? Please help me

Recommends this product

Customer review from kiehls.com

Response from kiehls.com

Consumer Care Center2 months ago

Hello! Our Ultra Pure High-Potency 9.8% Glycolic Acid Serum is a great choice for boosting your skin's glow and minimizing pores. Since it's a potent formula, we recommend starting with 2-3 applications per week in the evening, using just 2-3 drops on clean, dry skin. As your skin adjusts, you can gradually increase how often you use it. If you'd like extra hydration, try layering it with our Hyaluronic Acid serum, or for oil reduction and soothing, our Niacinamide serum works wonders. For more helpful tips and information, check out our website or the product packaging. We're excited for you to experience the benefits!

4 months ago
from NY
Age25-34
GenderFemale

High quality serum

[This review was collected as part of a promotion.] High quality serum. If you have any open acne it does burn a bit when on but overall makes my skin look great!

Recommends this product

Customer review from kiehls.com

5 months ago

Stings

It's strong but that also means it works well and my skin can handle it but I imagine it being too much for some people and could make the face extra sensitive, I use it once or twice a week and it works well but unfortunately nothing too amazing and I won't be repurchasing when finished.

Customer review from spacenk.com

5 months ago

Love this

I love Kiehl's products, and this one did not disappoint ! I use a lot of skincare, so I don't buy the same things unless I really like the product. I have repurchased this item and will continue to do so until they pull it. It puts other glycolic acids to shame. It absorbs easily, and I noticed a difference in texture after a few weeks. I use it in my PM routine after my toner and essence. It lasts a long time, so the price isn't that bad when you think about how long it lasts.

Customer review from influenster.com