Biosaccharide Gum-5
molecular structure · PubChem
AKA: Fermented Polysaccharide
Plant-Derived Synthetic
Skin Conditioner
Not Clean
Biosaccharide Gum-5 is a fermentation gum derived from sorbitol. It is described as a polymer of -glucose(structure)(1-->2)-rhamnose(structure)(1-->4)-glucose(structure)(1-->3)-rhamnose(structure)(1-->4) with rhamnose(structure)(1-->3) branching
Effective at 3.0%
CAS #
-
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A fermentation-derived polysaccharide developed through modern biotechnology. Created to provide humectant and film-forming properties in cosmetics as part of the move toward bio-based alternatives.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.0004%
6.0%
0%8%
Reported use
CIR reported use: 0.0004-0.5 | 0.002-6
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR