Yeast Extract
Reviewed by Emma · Last updated 14 Aug 2026
Also known as: Yeast, Saccharomyces cerevisiae, Torula yeast
Most often used type in skin care is from Saccharomyces cerevisiae
At a glance
Best For Skin Types
Sensitive, All
Addresses
EWG Safety Score
What Is Yeast Extract?
Yeast extract may sound like a simple ingredient but is in fact a complex source of numerous beneficial compounds for skin, including antioxidant compounds known as flavonoids, B vitamins, minerals (magnesium zinc), fatty acids, plus protein and lipid enzymes. Glycolipids known as glucosylceramides can be derived from yeast and have a role in improving skin’s barrier.
Clinical Evidence & References
References:
- https://cir-safety.org/sites/default/files/yeast092021SLR.pdf View Study
How widely it's used
Regulatory information
Standardised cosmetic-ingredient identifiers used by regulators.
Show identifiers
- INCI Name
- YEAST EXTRACT
- EC Number
- 232-387-9 (I),
- Function
- Skin Conditioning, Skin Protecting
From the Clinic
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Xanthophyll
Carotenoid pigments that exhibit yellow or brown colourings
Xanthophylls
Carotenoid pigments derived from plants, algae and fish
Yeast
Source of beta-glucan Good antioxidant
Yerba Mate Extract
Provides Anti-ageing, Soothing
Zanthoxylum Bungeanum Fruit Extract
Fruit from a plant also called prickly ash Major component of Sichuanese cuisine
Zeaxanthin
A plant-derived carotenoid that helps protect skin from oxidative stress
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