Pseudoalteromonas Exopolysaccharides

AKA: Biofilm polysaccharide, Marine polysaccharide

Synthetic

Skin Conditioner

Marine

Not Clean

Pseudoalteromonas Exopolysaccharides are the exopolysaccharides excreted by the fermentation of Pseudoalteromonas.

Form

Liquid

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 modern biotechnology ingredient derived from marine bacteria fermentation, developed in the 21st century for cosmetics to provide humectant and film-forming benefits inspired by natural polysaccharides.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

Dehydration

Pregnancy & Breastfeeding Safe

Yes

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.

Verified Jun 2026

Data: CosIng · EWG · CIR