murphyCarboxymethyl Dextran
molecular structure · PubChem
AKA: CMDextran
Synthetic
Occlusive
Clean
OriginProduced from dextran, a polysaccharide derived from bacterial fermentation of sucrose. Synthesized by carboxymethylation, introducing carboxymethyl groups onto the dextran polymer backbone.
Dextran, carboxymethyl ether
CAS #
9044-05-7
Form
Powder
Skin Types
●all-skin-types, gentle
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
Functions
Bulking
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Gel Forming
Viscosity Controlling
Adds Body & Volume
Creates Protective Barrier
Controls Viscosity
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Creates protective layer
Adds volume
Creates gel consistency
Controls product thickness
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant (CIR report on the ingredient group)
CIR report statement covering this group of ingredients / not tested individually (CIR 611)
Not a Sensitizer (CIR report on the ingredient group)
CIR report statement covering this group of ingredients / not tested individually (CIR 611)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2016
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR