Limonene


AKA: ● CYCLOHEXENE
Allergen Warning
⚠️ EU Fragrance Allergen
Synthetic
Fragrance
Solvent
Not Clean
Limonene, (+/-)- is a racemic mixture of limonene, a natural cyclic monoterpene and major component of the oil extracted from citrus rind with chemo-preventive and antitumor activities. The metabolites of DL-limonene, perillic acid, dihydroperillic acid, uroterpenol and limonene 1,2-diol are suggested to inhibit tumor growth through inhibition of p21-dependent signaling, induce apoptosis via the induction of the transforming growth factor beta-signaling pathway, inhibit post-translational modification of signal transduction proteins, result in G1 cell cycle arrest as well as cause differential expression of cell cycle- and apoptosis-related genes.
Formula
C10H16
Mol. Weight
136.23
CAS #
138-86-3
Form
Oil
Functions
Deodorant
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Controls Odor
Dissolves Ingredients
Adds Fragrance
Neutralizes odor
Adds pleasant scent
Dissolves other ingredients
Traditional Use
Limonene, a terpene compound found in citrus peels. Used in traditional aromatherapy and folk medicine; its isolation and use in modern cosmetics began in the 20th century.
Skin Types
●Caution
Best For
General
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR