HEMA Acetoacetate
AKA “2-(Methacryloyloxy)ethyl acetoacetate, Eastman AAEM, 2-(acetoacetoxy)ethyl methacrylate, LONZAMON AAEMA, UNII-6L3EW3HZF2, DTXCID5021388, 2-((2-Methyl-1-oxoallyl)oxy)ethyl acetoacetate, EINECS 244-311-1”
Synthetic
Ingredient Facts
Hema acetoacetate
AKA: 2-(Methacryloyloxy)ethyl acetoacetate, Eastman AAEM, 2-(acetoacetoxy)ethyl methacrylate, LONZAMON AAEMA, UNII-6L3EW3HZF2, DTXCID5021388, 2-((2-Methyl-1-oxoallyl)oxy)ethyl acetoacetate, EINECS 244-311-1
Synthetic · Film Forming · EWG: 4
Synthetic
Occlusive
Skin Conditioner
Synthetic
Clean
Creates a protective layer that helps the formula stay put and resist moisture loss, keeping your makeup or treatment looking fresh throughout the day.
Effective at 45.0%
Formula
C10H14O5
Mol. Weight
214.21
CAS #
21282-97-3
Form
Powder
State
Liquid
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Occlusive
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Moisturising
Creates Protective Barrier
Traditional Use
A modified version of HEMA developed in the late 20th century for specialized cosmetic applications. This synthetic ingredient was created to enhance film-forming and binding properties in personal care formulations.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Caution
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR