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Ethylhexyl C10-40 Isoalkyl Acidate
AKA “
Ethylhexyl isododecanoate, Isoalkyl ester
”
Acid
🦆
❤️
👻
Ingredient Facts
Ethylhexyl c10-40 isoalkyl acidate
AKA: Ethylhexyl isododecanoate, Isoalkyl ester
Acid · Skin Conditioning · EWG: 4
WHAT IS IT?
Synthetic
Skin Conditioner
Acid
Not Clean
Ethylhexyl C10-40 Isoalkyl Acidate is the ester of C10-40 isoalkyl acid and 2-ethylhexyl alcohol
See origin →
WHAT'S IT DO?
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A modern synthetic ester developed for cosmetics. Functions as an emollient and conditioning agent in high-end skincare and makeup formulations.
Skin Types
●
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
IS IT SAFE?
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA
✔ permitted
EU
⚠ restricted
JAPAN
⚠ restricted
CANADA
⚠ restricted
Regulatory Agencies
EWG
CIR
FDA
EU COSING
Health Canada
WHAT'S THE PROOF?
Crotonic Acid/Vinyl C8-12 Isoalkyl Esters/VA/Bis-Vinyldimethicone Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Ethylhexyl C10-40 Isoalkyl Acidate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Crotonic Acid/Vinyl C8-12 Isoalkyl Esters/VA/Bis-Vinyldimethicone Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Verified Jun 2026
Data: CosIng · EWG · CIR