A citrus-scented terpene used in fragrance compositions and some solvent applications.
Sources: 1, 2No alternative names recorded.
Not assessed
No pregnancy- or breastfeeding-specific assessment has been completed for this record. A cosmetic safety review is not a pregnancy rating.
Not assessed
Limonene
What it does
Adds scent; its presence does not establish a vitamin C or skin-brightening effect.
Sources: 1, 2Good for
- Fragrance compositions
How to use it
Use only in a finished product as directed. There is no skincare need to apply the raw fragrance material directly.
Sources: 1, 2Who should be careful
People with fragrance contact allergy should check labels. Natural citrus origin does not prevent sensitization.
Sources: 1, 2Pairs well with
No supported pairings have been documented for this record.
Usage, safety and formulation details
Mechanism of action
Oxidation during storage can generate sensitizing products, so material condition matters.
Sources: 1, 2Potential adverse effects
Irritant or allergic contact dermatitis can occur; oxidation products may be relevant for some fragrance materials.
Sources: 1, 2Formulation considerations
Identify stereoisomer and oxidation controls before assigning a specific structure or supplier specification.
Sources: 1, 2Pregnancy and breastfeeding
Not assessed
No pregnancy- or breastfeeding-specific assessment has been completed for this record. A cosmetic safety review is not a pregnancy rating.
Safety tags
- Fragrance allergen
- Flagged
Relevant to fragrance-allergen assessment and labeling; individual allergy needs clinical context.
Sources: 1, 2 - Essential oil
- Not assessed
Not separately assessed in this draft.
- Drying alcohol
- Not assessed
Not separately assessed in this draft.
- May irritate sensitive skin
- Not assessed
Not separately assessed in this draft.
What remains uncertain
- Exact concentration, final pH and the full composition of any unprovided finished product
Clinical evidence and research
Clinical evidence
Evidence for its main benefitNot assessed
The cited references support identity, formulation role or safety context. No standalone clinical efficacy rating has been completed for the main benefit in this draft.
Sources: 1, 2Regulation and ingredient label names
Regulatory information
No jurisdiction-specific assessment is recorded. An inventory listing is not blanket approval.
Names on ingredient lists
limonene
Chemical identity and molecular structure
Chemical information
Chemical structure
No single structure to show yet
A reviewed, unambiguous PubChem compound identifier is needed before a molecular diagram can be displayed.
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Content updated 9 November 2026.
Sources (2)
Scientific sources
- European Commission: Fragrance allergen labelingregulatory guidance
- FDA: Fragrances in cosmeticsregulatory guidance
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