Tropolone

Tropolone is a synthetic organic compound used in cosmetics primarily as a preservative and chelating agent. It helps to prevent the growth of microorganisms and can enhance the stability of formulations by binding to metal ions. It is typically used in very low concentrations.

BenefitNone 0 / 4

RiskLow 1 / 4

Sensitization i0.5 / 4

Risk of allergic contact dermatitis or immune-based reactions. Fragrance allergens, preservatives, botanicals, and some dyes may score here.

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 irritation or sensitization in sensitive individuals

Products with Tropolone

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Frequently asked questions

What is Tropolone used for in skincare?

Tropolone is primarily used as a preservative in skincare products to inhibit the growth of bacteria and fungi, thereby extending the product's shelf life. It also acts as a chelating agent, which helps stabilize formulations.