Tropolone
A plant-derived preservative compound. It holds back microbial growth and protects the formula. Well tolerated at cosmetic levels.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Tropolone is an organic compound with antimicrobial and chelating properties. INCI: Tropolone. In a formula it works as part of the preservation system and a stabilizer: it suppresses microbial growth and binds trace metal ions that speed up formula spoilage. It is a functional component, not a skincare active. Research also notes tyrosinase inhibition by tropolone, but in cosmetics its main role is protective rather than brightening. Pregnancy safety. At preservation-system concentrations, topical use is systemically negligible, with no evidence of harm. It can be used during pregnancy and lactation. Tolerance. At working concentrations, irritation and allergen potential are low.
Frequently asked questions
Is Tropolone safe during pregnancy?
Tropolone is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Tropolone for?
Tropolone suits: normal, dry, combination, oily, sensitive.
What is Tropolone and what does it do in cosmetics?
A plant-derived preservative compound.
What's the INCI name for Tropolone?
The INCI name is Tropolone.
See Tropolone in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
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