Ultra Pure High-Potency - High-Performance Ultra Pure Serum with Glycolic Acid

- 84% notice instantly refined skin texture*
- 90% feel renewed skin after 1 week**
- 90% notice visibly reduced pores in 4 weeks*

*Based on a consumer test conducted with 43 panelists over 8 weeks.
**Based on a clinical test conducted with 69 panelists over 8 weeks. MINIMALISTER FORMULACPSTRD Formulated with just 7 ingredients, our concentrated serum with 9.8% glycolic acid has a fast-absorbing texture that enables the active ingredients to penetrate the skin quickly, delivering rapid results from the 1st week.

GLYCOLIC ACIDCPSTRD Glycolic acid is a fruit acid obtained from sugar cane, beet or grape extracts. It is the smallest fruit acid molecule, which means it penetrates the skin very well, effectively stimulating cellular activity.

Charlène, our Kiehl's Skin Pro, shares her protocol for smooth, hydrated skin:

Step 1: Cleanse your skin - Ultra Facial Cleanser
Step 2: Smooth your skin - Ultra Pure Serum 9.8% Glycolic Acid
Apply the serum to cleansed skin, carefully avoiding the eye contour and lips.
Step 3: Moisturize your skin - Ultra Facial Cream

Apply sun protection in the morning after use.

How to use Ultra Pur Serums in layering:
TO HYDRATE AND SMOOTH SKIN GRAIN - Evening only
Step 1: ULTRA PURE SERUM 1.5% HYALURONIC ACID
Step 2: ULTRA PURE SERUM 9.8% GLYCOLIC ACID

TO SMOOTH AND TIGHTEN PORES
Morning: ULTRA PURE SERUM 5.0% NIACINAMIDE
Evening: ULTRA PURE SERUM 9.8% GLYCOLIC ACID

In case of contact with eyes, rinse immediately with plenty of water

KIEHL'S - 14, rue Royale - 75008 Paris France
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Warning: product ingredient lists are regularly updated. Before using any product, please read the list of ingredients on the packaging to ensure that it is suitable for your personal use.

685873 - INGREDIENTS: AQUA / WATER - GLYCOLIC ACID - GLYCERIN - ALCOHOL DENAT. - SODIUM HYDROXIDE - SODIUM HYALURONATE - HYDROXYETHYLCELLULOSE (F.I.L. Z297829/1).