Citric Acid

Citric acid is a weak organic alpha-hydroxy acid from citrus, widely used in cosmetics as a pH adjuster and occasional chelator. It moderates formula acidity for stability and comfort, and at suitable levels can provide very mild surface exfoliation.
Like this ingredient?

Ingredient Snapshot

Overview
A citrus-derived acid that gently exfoliates and balances formula pH.
Category
Exfoliating, Tone/Texture
Type
pH Adjuster

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Can gently smooth rough-feeling texture and brighten the look of dullness with consistent use. Sensitive skin may sting if formulas are very acidic.

Uses In Skincare & Cosmetics

Often included in toners, cleansers, and serums to fine‑tune pH and add a light exfoliating effect, especially in daily-use formats.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally safe at low amounts used to adjust pH, but may cause stinging, redness, or dryness, especially at lower pH, higher concentration, or on compromised skin. Discontinue if persistent irritation occurs.

Is Citric Acid a Good Ingredient?

Reliable as a pH adjuster with only mild exfoliation, and evidence for meaningful leave‑on improvement is modest. It can sting or irritate sensitive skin at low pH or higher levels, so formulation and frequency matter. Limited proof of benefit weighed against the risk keeps it at Fair.

Products with Citric Acid

Related Ingredients