Prices and payment are shown in CAD. International shipping costs are based on your items, shipping method and destination.
Main content
Ultra Pure High-Potency Serum 9.8% Glycolic Acid
Old price$ 42.00New price$ 35.70
A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin’s glow.
Recognized by the Canadian Dermatologist Association (CDA) for: Low potential for irritation. Fragrance Free. Not containing the most common allergens. Non-comedogenic.
Ultra Pure High-Potency Serum 9.8% Glycolic Acid
A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin’s glow.
Recognized by the Canadian Dermatologist Association (CDA) for: Low potential for irritation. Fragrance Free. Not containing the most common allergens. Non-comedogenic.
Buy 1, get 15% OFF Buy 2, get 20% OFF
AND 2X points!
FREE SHIPPING ON 50$ +
Join My Kiehl's Rewards
 
MY KIEHL'S REWARDS
Sign up now and earn points for shopping, getting a consultation with one of our Skin Pros, recycling and more. Get rewarded for treating your skin with perks like a birthday gift, exclusive offers, complimentary shipping and so much more!
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
Clean Formula (Fragrance and colorant free)
Halal / Vegan Formula
Hypo-Allergenic
GLYCOLIC ACID
Glycolic Acid is a naturally occurring fruit acid derived from sugar cane known to help smooth skin.
A concentrated 9.8% Glycolic Acid serum made with only 7 ingredients that visibly smoothes skin texture and boosts skin’s glow.<br> <br/>Recognized by the Canadian Dermatologist Association (CDA) for: Low potential for irritation. Fragrance Free. Not containing the most common allergens. Non-comedogenic.
One size only for Ultra Pure High-Potency Serum 9.8% Glycolic Acid
Discover our #1, best facial cream for all skin types, even sensitive. This lightweight moisturizer made with 4.5% Squalane provides 24-hour hydration for softer, smoother skin.
Old price$ 87.00New price$ 73.95
Did You Know
Did You Know?
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.
Product Comparison Table
Find Your Formula
Ultra Pure High-Potency Serum 9.8% Glycolic Acid
Ultra Pure High-Potency Serum 1.5% Hyaluronic Acid
One size only for Ultra Pure High-Potency Serum 9.8% Glycolic Acid
30 ml
Size
One size only for Ultra Pure High-Potency Serum 1.5% Hyaluronic Acid
30 ml
Size
One size only for Ultra Pure High-Potency Serum 5.0% Niacinamide
30 ml
Price
Old price$ 42.00New price$ 35.70
Price
Old price$ 42.00New price$ 35.70
Price
Old price$ 42.00New price$ 35.70
Recycle & Be Rewarded
Recycle & Be Rewarded
Bring in your empty Kiehl's products in-store and recycle them through our Recycle and Be Rewarded program. Each full-size product earns you points towards complimentary Kiehl's rewards!
Glycolic Acid serums deliver ingredients in a lightweight, concentrated format. Glycolic Acid, derived from plant material, belongs to the Alpha Hydroxy Acid (AHA) family. Its primary function is to break down the bonds between dead skin cells and increase cell turnover, which helps exfoliate the skin.
By boosting cell turnover and exfoliating the skin, Glycolic Acid helps reduce texture that can make skin appear dull, rough, or tired. This increased cell turnover brightens the skin and accelerates the fading of dark spots for a more even complexion.
While both are acids, their functions are very different. Glycolic Acid exfoliates the skin by increasing cell turnover, while Hyaluronic Acid is a sugar molecule that retains moisture. Hyaluronic Acid is naturally produced in the body and keeps the skin hydrated and flexible, while Glycolic Acid focuses on refining skin texture. Looking for a Hyaluronic Acid Serum? Check out our Ultra Pure High-Potency Serum 1.5% Hyaluronic Acid.
Yes, Glycolic Acid can be beneficial for those with acne-prone skin. Its exfoliating properties help remove buildup around pores, which can reduce the likelihood of breakouts and promote clearer skin.
You can use Glycolic Acid daily, but it’s important to monitor your skin's tolerance. Start by applying it a few times a week and build up to daily use if your skin responds well. Due to its strong exfoliating properties, Glycolic Acid should be used only at night, and sunscreen must be worn during the day to protect your skin.