Cinnamyl Alcohol
AKA “3-PHENYL-2-PROPEN-1-OL, cinnamic alcohol, (E)-3-phenylprop-2-en-1-ol, (E)-cinnamyl alcohol, Styryl carbinol, Styrone, 3-Phenylallyl alcohol, Styryl alcohol
Synthetic
Ingredient Facts
Cinnamyl alcohol
AKA: 3-PHENYL-2-PROPEN-1-OL, Cinnamic alcohol, (E)-3-phenylprop-2-en-1-ol, (E)-cinnamyl alcohol, Styryl carbinol, Styrone, 3-Phenylallyl alcohol, Styryl alcohol
Synthetic · Flavouring · EWG: 4
Synthetic
Fragrance
Safety Concern
Synthetic
Clean
Derived from cinnamon, this fragrance ingredient adds warm, spicy notes to beauty products. May cause sensitivity in some users.
Solubility FREELY SOL IN ALC, ETHER, OTHER COMMON ORGANIC SOLVENTS; SOL IN WATER, GLYCEROL; CLEARLY SOL IN 3 VOL 50% ALC
Formula
C9H10O
Mol. Weight
134.17
CAS #
104-54-1
Form
Liquid
State
Pellets or Large Crystals
See origin →
Functions
Flavouring
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Adds Flavor
Adds Fragrance
Locks In Moisture
Adds pleasant taste
Adds pleasant scent
Traditional Use
Cinnamyl alcohol is a naturally occurring compound in cinnamon and other aromatic plants, historically used in traditional medicine and perfumery. It is now isolated and used in modern cosmetics primarily as a fragrance ingredient and potential antimicrobial agent.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Caution
Allergen Warning
⚠️ EU Fragrance Allergen
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Caution
CIR Safety Findings
all-shades-safe
Regulatory Status
USApermitted
EUpermitted
JAPANpermitted
CANADApermitted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR