Yeast ferment extract
AKA: Fermented yeast extract, Yeast extract, Baker's yeast extract
Plant-Derived
Skin Conditioner
Ferment
Extract
Clean
Yeast Ferment Extract is an extract of the product obtained by fermentation of Saccharomyces cerevisiae
CAS #
-
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
Modern cosmetic ingredient developed through controlled fermentation processes in the late 20th century. Created to capture beneficial metabolites from yeast fermentation for skin conditioning and anti-aging claims.
Skin Types
●all-skin-types
Best For
Dullness
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