Ultra Pure High-Potency 9.81% Glycolic Acid Serum

Description

AQUA, GLYCOLIC ACID (AHA exfoliating acid), GLYCERIN, ALCOHOL DENAT. (Drying alcohol), SODIUM HYDROXIDE, SODIUM HYALURONATE (Hyaluronic acid), HYDROXYETHYLCELLULOSE

My Doctor's Diagnosis: Analysis and Target

Visit Ultra Pure High-Potency 9.81% Glycolic Acid Serum Kiehl's is primarily intended for individuals seeking to improve their skin texture, reduce pigmentation spots, and smooth fine lines and wrinkles. This serum targets dull complexion, surface irregularities, and the first signs of aging. The formula, which focuses on purity and high concentrations of active ingredients, is part of a minimalist and effective approach, suitable for skin that is used to exfoliating treatments or seeking visible results.

Formula Analysis: Key Assets

Three major active ingredients stand out in this formula:

• Glycolic Acid (9.8%) This AHA is known for its exfoliating properties. It works by breaking the bonds between dead cells on the skin's surface, promoting cell renewal. Its low molecular weight allows it to penetrate deeply, improving skin radiance and texture.
• Glycerine This moisturizing agent attracts and retains water in the epidermis, counteracting the potential drying effect of glycolic acid and maintaining the skin barrier.
• Sodium Hyaluronate : Derived from hyaluronic acid, it intensely moisturizes and plumps the skin, reducing discomfort associated with exfoliation.

However, the presence of denatured alcohol may sensitize reactive skin, but it promotes rapid penetration of the serum.

Tips and Application Ritual

I apply this serum in the evening, on clean, dry skin, avoiding the eye area. It is best to use it alone or with gentle moisturizers. I do not recommend combining it with other powerful exfoliants (retinol, vitamin C acid, other AHAs/BHAs) to limit the risk of irritation. Daily sun protection is essential the following day.

My Final Verdict & Safety Opinion

This Kiehl's serum stands out for its exfoliating effectiveness and its short formula, ideal for minimalist routines. I appreciate the synergy between exfoliation and hydration. However, be careful with alcohol, which may not be suitable for very sensitive skin. In conclusion, it is an excellent choice for reviving radiance and smoothing the skin, provided that the usual precautions are taken.

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