Saccharomyces cerevisiae extract

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AKA: Yeast Extract, Baker's Yeast Extract, Brewer's Yeast Extract
Plant-Derived
Skin Conditioner
Ferment
Extract
Clean
Saccharomyces Cerevisiae Ferment is an extract of the yeast cells of Saccharomyces Cerevisiae
CAS #
84604-16-0
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
Baker's yeast has been used in traditional medicine across cultures for nutritional support. Modern skincare use developed in the 20th century when researchers isolated B vitamins and amino acids from yeast as skin-conditioning agents.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Phototoxicity Concern
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
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