Limonene
⚠ EU RestrictedIdentification
CAS Number 5989-27-5
EINECS / EC 205-341-0/931-893-3
CosIng Ref 57187
Chemical Name 1-Methyl-4-Isopropenylcyclohexene; dipentene
Formula C10H16
Mol. Weight 136.23 g/mol
Function & Classification
Primary Function Fragrance
Secondary Functions SOLVENT; PERFUMING
EU Regulatory Status
Conditions of Use Fragrance allergen. Must be declared if >0.01% leave-on or >0.1% rinse-off.
Safety Profile
3 / 10
EU Fragrance Allergen One of 26 EU-mandated fragrance allergens — must be labeled separately per EU Cosmetics Regulation.
Comedogenic Rating: 0/5
Will not clog pores — safe for acne-prone skin
Skin Type Compatibility
Acne-Prone ✓ Safe
Sensitive Skin ~ Low Risk
Fungal Acne Safe ✓ Safe
Toxicology Profile
NOAEL 1800 mg/kg bw/day (oral, rat, 90-day, NTP 1990) SCCS/1548/14 Opinion on Limonene. NTP Technical Report 347 (1990).
Sensitization Weak
Dermal Absorption 2.9%
Formulation Guidelines
Benefits Fragrance; natural origin citrus peel
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