murphyPseudoalteromonas Exopolysaccharides
molecular structure · PubChem
AKA: Biofilm polysaccharide, Marine polysaccharide
Synthetic
Skin Conditioner
Not Clean
OriginProduced through fermentation of the Pseudoalteromonas bacterium, a marine microorganism. The exopolysaccharides are extracted and concentrated from the bacterial fermentation broth.
Pseudoalteromonas Exopolysaccharides are the exopolysaccharides excreted by the fermentation of Pseudoalteromonas.
Form
Liquid
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
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