Sodium Carboxymethyl Dextran
molecular structure · PubChem
AKA: Carboxymethyldextran Sodium Salt (Mw.=ca. 10, 000), 39422-83-8
Synthetic
Emulsifier
Clean
Dextran, carboxymethyl ethers, sodium salts
Effective at 2.5%
Formula
C40H43Na11O38
Mol. Weight
1384.60
CAS #
39422-83-8
Functions
Binding
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Anti-Inflammatory
Antimicrobial
Fights Acne
Holds ingredients together
Keeps product blended
Controls product thickness
Traditional Use
A synthetic polymer developed in the mid-20th century from dextran (a polysaccharide derived from bacterial fermentation). Engineered as a thickening and stabilizing agent for cosmetic and pharmaceutical formulations.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
5e-06%
5.0%
0%100%
Reported use
CIR reported use: 0.00001-5 | 0.000005-0.2
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR