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PDP Sections Accordion
Our gentle exfoliating Glycolic Acid facial serum is minimally formulated with only seven ingredients to visibly boost skin’s glow and reduce the appearance of pores. Concentrated with 9.8% Glycolic Acid, our potent formula helps visibly refine skin’s texture for a smooth, glowing appearance.
Formulated to help visibly minimize pores and refine skin’s texture
Minimally formulated for optimal skin absorption and efficacy
Boosts skin renewal in three days
Reduces the appearance of pores in four weeks
Suitable for all skin types, including sensitive
Free of fragrance and colorants
Glycolic Acid
Glycolic Acid is a naturally occurring fruit acid derived from sugar cane known to help smooth skin.
As part of our Kiehl’s Mission Renewal journey, we are providing the Environmental Impact Score to help you make informed decisions about the formulas you use. Kiehl’s is committed to continually improving the impact of our products throughout the product lifecycle, including the production and usage phase. This tool is designed to help assess the relative environmental and social impact of Kiehl’s Products compared to other L’Oréal Group products in the same category in 2020.
The calculation method was developed with the help of independent scientific experts and Bureau Veritas Certification, an independent auditor. The score takes into account 14 environmental impact factors all along the product's life cycle.
Every consumer product has some impact on the environment. A good score here does not mean a product has a positive impact or no impact on the environment. The letters and colors used in this tool are designed to help you make comparisons to other L’Oreal Groupe products in the same category around the world in 2020, so you can make more informed choices.
This product currently has a less favorable impact than we aim for, so we have set out an action plan to improve its environmental and social performance over the coming months. The letters and colors used in this tool are designed to help you make comparisons to other similar products in L'Oréal's global portfolio, so you can make more informed choices.
*Compared to other similar L’Oréal Groupe Products sold worldwide in 2020
This impact score is based on the simulated usage of 1 product and 4 refills.
Manufacturing Conditions
:
97%
Renewable energy:
>99%
Packaging Facts
% of cardboard/paper certified FSCTM or PEFC:
100%
% of bottle made of recycled material3 including colorant:
Minimally formulated with only 7 ingredients, our concentrated 9.8% Glycolic Acid serum has a fast-absorbing texture that allows actives to be rapidly delivered into the skin to help visibly smooth and refine skin’s texture, minimize pores, and boost radiance.
Product Comparison Table
Find Your Formula
Ultra Pure High-Potency 9.8% Glycolic Acid Serum
Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum
Skin Type All Types Dry Oily Combination Normal Sensitive
Skin Type All Types Dry Oily Combination Sensitive Normal
Skin Type All Types Dry Oily Combination Normal Sensitive
Skin Concern Enlarged Pores Uneven Skin Tone Tone & Texture Dull Skin
Skin Concern Dryness
Skin Concern Uneven Skin Tone Blemishes Oily Skin / Acne
Size
One size only for Ultra Pure High-Potency 9.8% Glycolic Acid Serum
1.0 fl oz / 30 ml
Size
One size only for Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum
1.0 fl oz / 30 ml
Size
One size only for Ultra Pure High-Potency 5.0% Niacinamide Serum
1.0 fl oz / 30 ml
Price
Old priceNew price$35.00
Price
Old priceNew price$35.00
Price
Old priceNew price$35.00
Expert Advice
Expert Advice
“We wanted to deliver known skin actives, such as Niacinamide, Glycolic Acid and Hyaluronic Acid in their pure form in simple formulations without too many ingredients to deliver efficacy, layer well into a skin regimen, such as with Kiehl’s Ultra Facial Cleanser and Ultra Facial Cream and allow users to customize their skin care according to their needs. The simplified formulas ensure the ingredients absorb fully into the skin. Our Ultra Pure High- Potency Serum 9.8% Glycolic Acid targets skin texture issues helping to smooth skin, improve skin radiance, and minimize the look of pores.”
Kiehl’s Global Scientific Director Dr. Nancy Ilaya PhD
PDP Section FAQs WW0244KIE
Frequently Asked Questions
What does a Glycolic Acid Serum do?
Serums are a way to introduce ingredients to the skin in a lighter-weight, more concentrated format – in this instance: Glycolic Acid. Glycolic Acid is an acid derived from plant material. It’s in the family of Alpha Hydroxy Acids (AHA) and its primary function is to dissolve the bonds that hold skin cells together and increase cell turnover. In other words, Glycolic Acid helps to exfoliate the skin.
How can Glycolic Acid help the skin?
By increasing cell turnover and helping to exfoliate the skin, the skin is left with less texture (which can make the skin look dull, tired, and rough). The increased cell turnover can also make the skin look brighter and help diminish dark spots more quickly.
What is the difference between Glycolic Acid and Hyaluronic Acid?
While they are both structurally acids, they have very different functions. Glycolic Acid increases cell turnover by breaking down the bonds that hold skin cells together. Hyaluronic Acid, however, is a group of sugar molecules that are naturally produced in the body (which can also be sourced from plant matter) and has a primary function of retaining moisture. It is primarily found in your skin and connective tissues to keep your body hydrated and flexible.
Is a Glycolic Acid Serum good for acne?
Yes. Glycolic Acid can be beneficial for those prone to acne. Due to its exfoliating function, it helps skin turnover more easily and reduces the amount of buildup in and around pores.
Can you use a Glycolic Acid Serum every day?
Glycolic Acid may be used every day; however, it is important to check your skin tolerance. It may be best to start off a few times a week and monitor how your skin reacts before building up to every day. Due to the strong exfoliating factor, though, it’s important to only use Glycolic Acid Pure Serum at night and to always wear a sunscreen during the day.
Reviews
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