Sorbic Acid

Sorbic Acid is a short-chain, unsaturated fatty acid widely used in foods and cosmetics as a preservative that works best under acidic conditions. It's added to limit growth of yeasts and molds in aqueous formulas and extend shelf stability.
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Ingredient Snapshot

Overview
A preservative that helps stop mold and yeast from growing.
Category
Preservative
Type
Preservative

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

It limits spoilage from yeasts and molds, supporting freshness in lower-pH products, and helps maintain product integrity during routine use.

Uses In Skincare & Cosmetics

It's commonly included in liquid serums, face mists, gels, and shampoos as part of a broader preservative system.

Comedogenic Rating

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

Safety

It may cause mild skin or eye irritation, particularly at higher levels or low pH. It's most effective below about pH 6, so formulas often adjust acidity accordingly.

Is Sorbic Acid a Good Ingredient?

It rates Good as a well-established preservative effective against yeasts and molds in acidic formulas, though it's weaker against bacteria and typically paired with co-preservatives. Its long history of use supports the rating, tempered by some sting potential in sensitive areas.