Kiehl's ULTRA PURE high-potency serum 9.8% glycolic acid

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Kiehl's FAQ (4)
Expected delivery:
Thursday 10/15/2026
Thursday 10/15/2026

*Approximate for orders whose destination is the provincial capital. In other cases there will be a delay of 1 day.
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ULTRA PURE high-potency serum 9.8% glycolic acid

A 9.8% concentrated glycolic acid serum made with just 7 ingredients that visibly smooths skin texture and increases radiance.

Benefits:

  • Optimal formulation for rapid absorption and maximum skin efficacy.
  • Accelerates skin renewal in three days.
  • Reduces the appearance of pores in four weeks
  • Suitable for all skin types, including sensitive skin.
  • Free of fragrances and colorants.

Instantly refined texture by 83%. Smooths skin in 2 weeks.

How to use:

Apply 4-5 drops of the glycolic acid serum to clean, dry skin at night.

Recommendations:

Recommended for nighttime use; gradually introduce into your routine to assess tolerance.

EAN
3605972791276
Skin type
Sensitive All skin types
Textures
Serum
Format
Doser
Formulation
Fragrance Free
Ingredients
Glycolic Acid
ingredients
aqua/water, glycolic acid, glycerin, alcohol denat., sodium hydroxide, sodium hyaluronate, hydroxyethylcellulose

The lists of ingredients contained in product composition are updated regularly. Consult the list of ingredients on the packaging before using the product.

Brand Safety Warning
In case of contact with eyes, wash immediately and thoroughly with water.
Legal information of the brand
Kiehl's, 14, rue Royale, 75008, París
https://www.loreal.com/es-es/espana/
corpes.contacto.loreal@loreal.com

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FAQ Kiehl's - ULTRA PURE high-potency serum 9.8% glycolic acid

?
What benefits does Kiehl’s Ultra Pure Glycolic Acid offer?
Translated by Google
-25/03/2026
It is the intensive rejuvenating treatment that guarantees:
• Visibly brighter and more radiant skin.
• Dramatic improvement in the texture and smoothness of the face.
• Reduction of surface imperfections.
?
Should Ultra Pure Glycolic Acid be used during the day or at night?
Translated by Google
-18/02/2026
It is recommended to use it preferably at night. It is essential to apply a broad-spectrum sunscreen the following morning, as glycolic acid increases sensitivity to the sun.
?
Is it normal to feel a slight tingling sensation with this Kiehl’s serum?
Translated by Google
-02/01/2026
Yes, due to its 9.8% glycolic acid concentration, it is common to experience a sensation of activity on the skin during the first few seconds after application.
?
How does the Ultra Pure High-Potency Serum with glycolic acid work?
Translated by Google
-14/11/2025
This high-potency concentrate helps gently exfoliate the skin’s surface to accelerate cell renewal, resulting in a much smoother texture and minimizing the appearance of pores.
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