Sodium Carboxymethyl Dextran
AKA “Carboxymethyldextran Sodium Salt (Mw.=ca. 10, 000), 39422-83-8”
Ingredient
Ingredient Facts
Sodium carboxymethyl dextran
AKA: Carboxymethyldextran Sodium Salt (Mw.=ca. 10, 000), 39422-83-8
Ingredient · Emulsion Stabilising · EWG: 1
Synthetic
Emulsifier
Clean
Dextran, carboxymethyl ethers, sodium salts
Effective at 2.5%
Formula
C40H43Na11O38
Mol. Weight
1384.60
CAS #
39422-83-8
See origin →
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.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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%
Effective Range
CIR reported use: 0.00001-5 | 0.000005-0.2
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR