Yeast

AKA: Yeast Extract

Synthetic

Skin Conditioner

Clean

OriginDerived from single-celled fungi (Saccharomyces cerevisiae) commonly cultivated from grains, molasses, or sugar substrates. Produced through aerobic fermentation where microorganisms metabolize carbohydrates to generate biomass and bioactive compounds.

Saccharomyces cerevisiae

CAS #

68876-77-7

Form

Powder

Skin Types

●all-skin-types

Best For

Dullness

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-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

CIR's newest survey reports no concentration of use.

CIR · report published 2024

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR