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preservative

Potassium Sorbate

Generally safe·Strong evidence

A widely used, gentle preservative also common in food. It is generally well tolerated, though it can occasionally cause mild, transient irritation in people with already-compromised or very reactive skin.

Questions

Is potassium sorbate safe in cosmetics?
Potassium sorbate is a preservative used to prevent mold and yeast growth. Published safety reviews show no significant concerns with topical use in cosmetics at typical levels.
Does potassium sorbate cause allergies?
Allergic reactions to potassium sorbate are rare in cosmetic products. It has been used in beauty products for decades with a low frequency of allergenic reactions reported.
Why do cosmetics contain potassium sorbate?
It's an effective preservative that keeps products free from mold and spoilage, extending shelf life. It's one of the most common preservatives in natural and conventional skincare.

Products with Potassium Sorbate

In our guides

References

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.