Rhizobian Gum
molecular structure · PubChem
AKA: Xanthan gum, Bacterial polysaccharide
Plant-Derived Synthetic
Occlusive
Clean
Rhizobian Gum is the polysaccharide gum produced by the fermentation by Rhizobian
Effective at 8.52%
CAS #
-
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Hair Fixing
Plasticiser
Viscosity Controlling
Creates protective layer
Holds hair in place
Adds flexibility
Controls product thickness
Traditional Use
A modern ingredient derived from bacteria in the Rhizobium genus, developed through biotechnology in the late 20th century. Created as a natural alternative to synthetic thickening agents and stabilizers in cosmetic formulations.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.03%
17.0%
0%24%
Reported use
CIR reported use: 0.03-17f | 0.4-3
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
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: CosIng · EWG · CIR