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The ingredient, explained

Yeast

Saccharomyces cerevisiae

Skin conditioning
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Ingredient guide

What it is and what it does

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Skin conditioning
A broad cosmetic role for maintaining skin condition. It does not identify a particular clinical benefit.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Generic yeast does not identify species, viable organism, extract or fermentation product. Local trials use yeast mannan, Torula extract cysteine peptides or other specific preparations; these cannot establish unspecified yeast effects.

Research review checked Oct 1, 2026

Read exact local candidate abstracts first; select identity-relevant papers; targeted primary PubMed/publisher searches. This is not an exhaustive systematic review.

Ingredient research is not proof that a product containing this ingredient works.

Follow the formula

Products containing this ingredient

All 3 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

INCI name on ingredient lists
YEAST
CAS registry number
68876-77-7

Sources for this ingredient record