Is Cinnamaldehyde safe in cosmetics?
Cinnamaldehyde has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.
Cinnamaldehyde
INCI: CINNAMOMUM ZEYLANICUM BARK OIL
Cinnamaldehyde (CAS 8015-91-6) is a cosmetic active ingredient functioning as lip plumping agent, fragrance, flavoring. EU Regulation 1223/2009 status: restricted, max Cinnamaldehyde (active component, CAS 104-55-2) requires declaration at >0.001% in leave-on products; subject to Annex III restrictions for sensitizing components. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 8015-91-6 →
Auto-generated CPSR Part A draft with source citations
Function
lip plumping agent, fragrance, flavoring
Safety Rating
MODERATE
Regulatory Status
EU EU Status
restricted
EU Max Conc.
Cinnamaldehyde (active component, CAS 104-55-2) requires declaration at >0.001% in leave-on products; subject to Annex III restrictions for sensitizing components
US US Status
permitted
US Notes
Permitted at low concentrations for cosmetic use; cinnamaldehyde classified as fragrance allergen; IFRA guidelines should be followed; plumping claims via TRPA1 receptor activation may border on drug action claims; oral ingestion from lip products adds to cinnamaldehyde systemic exposure
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Cinnamaldehyde.
Calculate MoS for your specific formulation with the MoS Calculator.
Sensitization Profile
Contact sensitization data for Cinnamaldehyde based on clinical patch test studies and IFRA standards.
Sensitization Rate
low
Allergen Class
fragrance
EU Allergen Listed
no
Patch Test Positive Rate
0.5%
Cross-reactivity Group
balsam-of-peru-group
Reaction Type
contact-dermatitis
IFRA Restricted
— max 0.07% in finished products
Source: IFRA
Additional Ingredient Properties
1 property record from structured ingredient metadata.
allergen_detail
{"eu_allergen_listed": "no", "allergen_class": "fragrance", "cross_reactivity_group": "balsam-of-peru-group", "patch_test_frequency_pct": "0.5", "sensitization_rate": "low", "common_reaction_type": "contact-dermatitis", "ifra_restricted": "yes", "ifra_max_level_pct": "0.07", "source": "IFRA"}
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Flavouring and nutrient
Fragrance
Regulatory List Membership (3)
IFRA Fragrance Transparency List
FDA Substances Added to Food (EAFUS)
Consumer Product Chemical
Expert Verdict
Expert safety assessment and concern-level summary for Cinnamaldehyde.
Regulatory Flags
eu-restricted
ifra-restricted
lip-plumper
trpa1-agonist
fragrance-allergen
cinnamaldehyde
sensitizer-risk
contact-cheilitis
irritant
oral-exposure-relevant
concentration-critical
mucosal-caution
ifra_fragrance
fda_food_additive
jecfa_safe
Chemical Function
Fragrance
Flavouring and nutrient
Regulatory Lists
IFRA Transparency
IFRA Transparency
IFRA Transparency
Australia; Food and drug - smoking-related products
IFRA Transparency
consumer_product
IFRA Transparency
IFRA Transparency
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Cinnamaldehyde allowed in the EU?
Cinnamaldehyde EU regulatory status: restricted. Maximum allowed concentration: Cinnamaldehyde (active component, CAS 104-55-2) requires declaration at >0.001% in leave-on products; subject to Annex III restrictions for sensitizing components. This is based on EU Regulation 1223/2009 and its amendments.
What does Cinnamaldehyde do in cosmetics?
Cinnamaldehyde functions as: lip plumping agent, fragrance, flavoring. It is classified as a Active Ingredient in our database. CAS number: 8015-91-6.
Compliance Tools
Check Cinnamaldehyde compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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