Kiehls Ultra Pure 9 8% Glycolic Acid High-potency Serum 30ml

Kiehl’s Ultra Pure 9 8% Glycolic Acid High-Potency Serum delivers targeted alpha hydroxy acid exfoliation in a precise 30ml format designed for consistent at-home skin renewal. Containing an 8% concentration of glycolic acid, this treatment actively dissolves surface buildup to improve clarity and restore a refined skin texture without abrasive friction.

How the Formula Works

Glycolic acid operates as a water-soluble compound with the lowest molecular weight of all hydroxy acids, enabling rapid absorption into the upper epidermal layers to loosen trapped debris and encourage cellular turnover. Regular application supports a smoother complexion, reduces the visual impact of enlarged pores, and minimizes superficial uneven tone caused by accumulated dead cells.

Treatment Guidelines

• Apply a thin layer to freshly cleansed, completely dry skin in the evening
• Begin with twice-weekly use and incrementally increase frequency based on individual tolerance
• Layer a hydrating moisturizer afterward to support barrier recovery after exfoliation
• Mandatory daytime sunscreen use to prevent UV sensitivity triggered by active acid treatment

The concentrated liquid dispenses cleanly, ensuring consistent dosing throughout the 30ml supply period. Keep the sealed container in a cool, dark location to preserve acid stability and maximize formula performance.