Benzoic Acid

Benzoic acid is an aromatic carboxylic acid that functions as a pH-dependent preservative in cosmetics and personal care products. It limits microbial growth at low pH and maintains freshness, though it can present an irritation risk for some users.
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Ingredient Snapshot

Overview
A preservative that fights bacteria and mold in low-pH products.
Category
Preservative
Type
Preservative

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Provides antimicrobial protection in lower-pH formulas, helping reduce product spoilage. Those prone to sensitivity may want to patch test first.

Uses In Skincare & Cosmetics

Often used in acidic toners, gels, and facial cleansers, and also appears in shampoos and conditioners that need preservation at lower pH.

Comedogenic Rating

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

Safety

Can irritate or sting, especially on compromised skin or near the eyes and mucosa; start with limited exposure if sensitive. Avoid stacking with strong exfoliants in the same routine to minimize irritation.

Is Benzoic Acid a Good Ingredient?

It effectively preserves low-pH formulas, earning it a Good rating, though it's more prone than its salt forms to cause stinging or irritation, so sensitive users may want to patch test first.

Products with Benzoic Acid

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