Limonene[2][4][5][6] ●
TL;DR. This ingredient is primarily used as a fragrance component, giving products a bright citrus scent. It can also function as a solvent for oily materials, usually as a secondary role.
What does Limonene[2][4][5][6] do in a cosmetic formula?
This ingredient is primarily used as a fragrance component, giving products a bright citrus scent. It can also function as a solvent for oily materials, usually as a secondary role.
Is Limonene[2][4][5][6] clean?
From a clean beauty perspective, this ingredient is accepted in many frameworks when properly disclosed, but it is a listed fragrance allergen. Its sensitization potential rises after air oxidation, so freshness control, antioxidant support, and low use levels matter.
Is Limonene[2][4][5][6] sustainable?
This material is commonly sourced from citrus peel byproducts, which gives it a favorable renewable-sourcing profile when plant-derived. It is readily biodegradable, but it is volatile and can contribute to fragrance-related VOC emissions.
Is Limonene[2][4][5][6] COSMOS-approved?
It can be used in COSMOS-natural and COSMOS-organic products when derived from permitted natural fragrance materials and labeled according to allergen requirements. Its Green Chemistry profile is mixed: renewable and biodegradable when citrus-derived, but volatile and prone to oxidation.
How does Limonene[2][4][5][6] work chemically?
This molecule is a cyclic monoterpene hydrocarbon with high volatility and strong odor impact, so fragrance use is often at low concentrations. It oxidizes in air to hydroperoxides and related compounds, which is why airtight packaging, freshness controls, and antioxidants are relevant co-formulation considerations.
Last updated 2026-05-13