Saccharomyces Cerevisiae Extract
INCI: SACCHAROMYCES CEREVISIAE EXTRACT
Reviewed by Kate · Last updated 14 Aug 2026
A yeast-derived ingredient with skin-conditioning and antioxidant potential
Best For Skin Types
All
Addresses
Usage Frequency
Daily
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What Is Saccharomyces Cerevisiae Extract?
Saccharomyces cerevisiae extract is derived from baker's yeast, a single-celled fungus commonly used in food production. When processed into an extract form, it becomes a skin-conditioning ingredient that may offer antioxidant properties to skincare formulations.
The extract contains bioactive compounds including polysaccharides and amino acids that can help support skin's natural defence mechanisms against environmental stressors.
How It Works
The extract works primarily through its antioxidant components, which are thought to neutralise free radicals and reduce oxidative stress within skin cells. This helps minimise cellular damage that can lead to visible signs of ageing and skin sensitivity.
Additionally, the polysaccharide content may support the skin barrier and help retain moisture, contributing to overall skin conditioning and resilience.
Clinical Evidence & References
Research using skin cell models (fibroblasts and keratinocytes) has shown that yeast-derived extracts can reduce reactive oxygen species generation and support antioxidant enzyme activity when skin cells are exposed to stressors. However, this evidence is primarily from laboratory studies rather than controlled human trials.
There is emerging interest in the ingredient's role in skin health, though large-scale clinical studies on topical application remain limited. The evidence base supports its use as a conditioning agent more than as a targeted treatment for specific skin concerns.
Published Research
How to Use
Saccharomyces cerevisiae extract is typically found in serums, essences, and moisturisers at modest concentrations. Use as directed within your chosen formulation—it works well as part of a broader skincare routine and can be combined with other active ingredients without particular restrictions.
Safety & Precautions
Frequently Asked Questions
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