Saccharomyces Ferment Filtrate

Also known as: Saccharomyces Ferment Filtrate (Yeast Extract)

INCI: Saccharomyces Ferment Filtrate | Function: Brightening, Moisturizing, Anti-aging | Type: Ferment (yeast-derived)

What Is Saccharomyces Ferment Filtrate?

Saccharomyces Ferment Filtrate is a nutrient-rich liquid from Saccharomyces yeast fermentation. Found in many K-beauty essences, it is rich in beta-glucan, amino acids, and B vitamins. It helps brighten skin, improve hydration, and support the skin barrier through prebiotic effects on the microbiome.

Key Skin Benefits

+ Brightens and evens skin tone
+ Rich in beta-glucan for skin barrier support
+ Prebiotic effect — supports healthy skin microbiome
+ Provides amino acids and B vitamin complex
+ Improves skin hydration and texture

Pros

+ Natural fermentation-derived
+ Prebiotic benefits for skin microbiome
+ Rich nutrient profile (beta-glucan, vitamins, amino acids)
+ Gentle, well-tolerated by sensitive skin
+ K-beauty heritage with strong consumer following

Cons

− Distinct fermentation scent
− Batch variation is common
− Limited clinical research compared to Galactomyces
− Results are gradual (4-8 weeks)
− May cause initial purging in some users

Specifications

Property	Value
Usage Areas	Face, Eye, Body
Product Type	Leave-On, Rinse-Off
Source	Biotech (yeast fermentation)
Natural Level	Natural

Safety Ratings

Metric	Rating
Skin Sensitivity	0/5 (none)
Comedogenic Rating	0/5
EWG Score	1/10

Regional Regulatory Limits

Region	Leave-on %	Rinse-off %	Status
EU (CosIng)	No limit	No limit	Allowed
US (CIR/FDA)	No limit	No limit	Allowed
Japan (MHLW)	No limit	No limit	Allowed
ASEAN	No limit	No limit	Allowed
China (NMPA)	No limit	No limit	Allowed

Typical Usage % by Product Type

Product Type	Typical %
First essence / toner	10 - 80%
Brightening serum	5 - 30%
Moisturizer	2 - 10%

References

Gaspar LR et al. (2008) — Yeast extract in skin care
Lee J et al. (2014) — Fermented ingredients in cosmetics
EWG Skin Deep — Score 1/10

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