Polysorbate 21
Polysorbate 21 is a synthetic ingredient derived from sorbitol and fatty acids. It functions as an emulsifier, helping to mix oil and water-based ingredients that would otherwise separate. It can also act as a solubilizer, allowing small amounts of oils or fragrances to dissolve in water-based formulas.
Emulsifier, solubilizer
RiskLow 0.5 / 4
Irritation i0.5 / 4
Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
- Potential for mild skin irritation in sensitive individuals
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