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Ultra Pure High-Potency Serum 9.8% Glycolic Acid

Old price New price €35.00
1 people purchased this item today
A 30ml bottle of Kiehl's Ultra Pure 9.8% Glycolic Acid Serum against a white background.
A close-up of the Ultra Pure 9.8% Glycolic Acid Serum texture showing clear liquid droplets. Text highlights its ability to improve texture and suitability for all skin types.
Ultra Pure 9.8% Glycolic Acid Serum being applied to skin.
A bottle of Ultra Pure 9.8% Glycolic Acid Serum against a pink background with text reading "Instantly 83% felt refined texture."
Key ingredients graphic highlighting Glycolic Acid.
A hand holding Ultra Pure 9.8% Glycolic Acid Serum with text reading "Apply 2-3 drops, morning and night."
Kiehl’s Since 1851 apothecary label in New York’s East Village. Features the brand logo in blue neon style text on a white vintage background with the words "Finest Skincare."
Grouping of Kiehl’s bestselling products: Retinol Skin-Renewing Serum, Creamy Eye Treatment with Avocado, Ultra Facial Cream, and Rare Earth Deep Pore Cleansing Masque. Text reads: "SHOP OUR BESTSELLERS."
A comparison graphic showing Kiehl's serums: Hyaluronic Acid, Niacinamide, and Glycolic Acid. Text highlights suitability for normal, combination, and oily skin.
A three-step routine featuring Kiehl's products. Step 1: Ultra Facial Cleanser. Step 2: Glycolic Acid Serum. Step 3: Ultra Facial Cream.
A graphic with text reading "Skin Pro Tip: For an excellent glow, apply and leave on the skin for 5 minutes before applying a moisturizer."

A concentrated 9.8% Glycolic Acid facial serum formulated with just seven ingredients to help step up your smooth by visibly refining skin’s texture and minimising the appearance of pores.

Ultra Pure High-Potency Serum 9.8% Glycolic Acid

A concentrated 9.8% Glycolic Acid facial serum formulated with just seven ingredients to help step up your smooth by visibly refining skin’s texture and minimising the appearance of pores.

One size only
Selected 30 ml
Old price New price €35.00 (€1,166.67 / 1l)
, 1 of 1
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UP TO 40% OFF*

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Terms & conditions

A white tube of facial cleanser stands against a vibrant red background. Bold black text to the left reads: FREE MINI ULTRA FACIAL BARRIER-HYDRATING CLEANSER 30ML

FREE ULTRA FACIAL CLEANSER*!

When you purchase our NEW Ultra Facial Meltdown Recovery Cream!
Use Code: CLEANSER

*See full Terms and Conditions
Free Avocado Eye Cream with your purchase of our NEW Better Screen SPF50 Serum.

FREE AVOCADO EYE CREAM*!

When you purchase our NEW Better Screen SPF50 Serum.
Use code: EYE

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PDP Sections Accordion

What it is

Our gentle, exfoliating Glycolic Acid facial serum is formulated with seven ingredients and helps 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.

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INSTANT SKIN ANALYSIS Find a routine that's personalised just for you. START ANALYSIS
Find a routine that's personalised just for you.
Did You Know
A bottle of Kiehl's Ultra Pure High-Potency Serum with 39% Glycolic Acid is lying on a white surface, with a small amount of serum spilled nearby. The dropper cap is slightly raised, showcasing the product's clean, minimalist design.

Did You Know?

A bottle of Kiehl's Ultra Pure High-Potency Serum with 39% Glycolic Acid is lying on a white surface, with a small amount of serum spilled nearby. The dropper cap is slightly raised, showcasing the product's clean, minimalist design.
Minimally formulated with only 7 ingredients, our concentrated 9.8% Glycolic Acid serum has a fast-absorbing texture that allows ingredients to be rapidly delivered into the skin to help visibly smooth and refine skin’s texture, minimize pores, and boost radiance.
PDP Routine Section

Complete Your Routine

Discover efficacious formulas to upgrade your routine.
Step 1
Kiehl's Ultra Facial Cleanser
Kiehl's Ultra Facial Cleanser texture photo with icons: for all skin types & sensitive skin
Model with Kiehl's Ultra Facial Cleanser on their face
Kiehl's Ultra Facial Cleanser gently cleanses

Ultra Facial Cleanser

A mild foaming cleanser for all skin types.

Old price New price €27.00
Step 2
A 30ml bottle of Kiehl's Ultra Pure 9.8% Glycolic Acid Serum against a white background.
A close-up of the Ultra Pure 9.8% Glycolic Acid Serum texture showing clear liquid droplets. Text highlights its ability to improve texture and suitability for all skin types.
Ultra Pure 9.8% Glycolic Acid Serum being applied to skin.
A bottle of Ultra Pure 9.8% Glycolic Acid Serum against a pink background with text reading "Instantly 83% felt refined texture."

Ultra Pure High-Potency Serum 9.8% Glycolic Acid

A concentrated 9.8% Glycolic Acid facial serum formulated with just seven ingredients to help step up your smooth by visibly refining skin’s texture and minimising the appearance of pores.

One size available
30 ml
Old price New price €35.00
Step 3
Kiehl's Ultra Facial Cream open jar photo
Texture photo with icons stating it strengthens skin barrier and is for dry skin
Model applying Kiehl's Ultra Facial Cream to their face
Ultra Facial Cream delivers 1-hour barrier repair and 72-hour hydration
best seller

Ultra Facial Cream

Discover our #1 face cream formulated for all skin types, even sensitive skin, to strengthen your skin's moisture barrier for softer, smoother skin and up to 72-hour hydration. Refill format available.

Old price New price €43.00
PDP Reviews
Safety Information

Safety Information

In case of contact with the eyes, rinse immediately and thoroughly
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