Ultra Pure High-Potency 9.8% Glycolic Acid Serum
A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin’s glow.
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Before and After

Instantly, 83% Felt Refined Texture*
After 1 Week, 98% Agree Skin Feels Softer*
Smoother Skin in 1 Week**
*Reported by consumers in a 4-week study.
**Expert grading in a 4-week clinical study.
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Why We Love It

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Expert Advice

Kiehl’s Global Scientific Director Dr. Nancy Ilaya PhD


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