Yeast

AKA: Yeast Extract

Synthetic

Skin Conditioner

Ferment

Clean

Saccharomyces cerevisiae

CAS #

68876-77-7

Form

Powder

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

Fermented organisms used in traditional medicine systems, particularly in Traditional Chinese Medicine and Ayurveda for digestive support. Modern cosmetic use developed in the 20th century for skin conditioning and anti-aging properties.

EWG

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

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

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