A synthetic fragrance component. Some people may develop contact allergy.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A fragrance component. Some people may develop contact allergy.
Trimethylcyclopentenyl Methylisopentenol is a synthetic fragrance ingredient. Its INCI matches the chemical name. In a formula it builds or adjusts the product scent and carries no skincare role. As a perfume component it is functional, not an active. It does not hydrate, soothe or improve the skin – it works on smell alone. If you want a visible result, look at other entries on the ingredient list rather than this one. Topically its systemic absorption is minimal, so it can be used during pregnancy and breastfeeding with no known restriction. The irritation potential is low, while the contact allergy risk is medium. Most people tolerate it well, but those sensitised to fragrances may get redness or itching. If your skin reacts to perfume, pick fragrance-free formulas instead.
Irritation potential
LowAllergen risk
ModeratePregnancy
SafeSuitable for
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.
Trimethylcyclopentenyl Methylisopentenol is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Trimethylcyclopentenyl Methylisopentenol suits: normal, dry, combination, oily, sensitive.
A synthetic fragrance component.
The INCI name is Trimethylcyclopentenyl Methylisopentenol. It may also appear as: Триметилциклопентенил метилизопентенол.
Published: · updated: