Citronellol

TL;DR. This ingredient is used as a fragrance component, adding a fresh floral, citrus-rose note and helping mask base-odor from other formula materials.

What does Citronellol do in a cosmetic formula?

This ingredient is used as a fragrance component, adding a fresh floral, citrus-rose note and helping mask base-odor from other formula materials.

Is Citronellol clean?

It is a recognized fragrance allergen in the EU and UK, with label disclosure required above very low thresholds in leave-on and rinse-off products. Clean-beauty programs may allow it, but oxidation and fragrance-sensitization potential keep it from being fully unproblematic.

Is Citronellol sustainable?

This material can come from plant essential oils or synthetic fragrance chemistry, so its footprint depends heavily on sourcing. It is expected to biodegrade, but responsible handling of concentrated fragrance materials still matters for waterways.

Is Citronellol COSMOS-approved?

It can be used in COSMOS products when sourced from natural aromatic raw materials and when the full fragrance blend meets the standard. From a Green Chemistry view, renewable sourcing and biodegradability are positives, while allergen management and oxidation control are the main caveats.

How does Citronellol work chemically?

The molecule is an acyclic monoterpenoid alcohol with one double bond and a chiral center, which gives it strong odor impact at low concentrations. It is typically used at low fragrance levels, often below 1% in leave-on products depending on IFRA category, and should be protected from air and light because oxidation can increase sensitization potential.

Last updated 2026-05-13