Alpha-Terpineol
INCI: ALPHA-TERPINEOL
CAS 8000-41-7
fragrance; antimicrobial
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
fragrance; antimicrobial
Purpose
Function
fragrance; antimicrobial
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Restricted
Safety
MODERATE
US
Permitted
EU Max Concentration0.001% leave-on / 0.01% rinse-off
Absorptionhigh
Sensitizationmoderate
MoSnot established
NOAEL100 mg/kg
ConcernModerate
Flags
allergen-eueu-2023-1545-newly-listedeu-labelling-requiredsensitization-riskifra-restrictedepa_safer_alternativeifra_fragrance
Verdict
Newly declarable EU allergen from July 2026 under EU Regulation 2023/1545. Key constituent of tea tree oil and various pine and citrus oils. Formulators using oils containing terpineol (particularly tea tree) must calculate terpineol content and declare on EU product labels above threshold. Update CPSR and PIF for affected formulations.
US Note
Permitted for cosmetic use; RIFM-assessed; natural constituent of many essential oils
Assessment
Ratings
Reference