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Moumoujus

PROPIONIBACTERIUM ACIDIPROPIONICI/SOYBEAN EXTRACT FERMENT FILTRATE.

Valuable / ANTIMICROBIAL, SKIN CONDITIONING

This innovative ingredient is a ferment filtrate derived from soybean extract, produced through the fermentation action of *Propionibacterium acidipropionici*. It functions as a versatile skin-conditioning and antimicrobial agent, leveraging the benefits of fermentation to support a healthy skin environment.

Summary

Antimicrobial Skin conditioning Anti-aging Firming Elasticity restoration Moisturizing Antioxidant Brightening Anti-inflammatory Microbiome balancing Cell regeneration

Science

Mechanism of Action

The primary mechanism involves the production of propionic acid by *Propionibacterium acidipropionici*, which contributes to maintaining optimal skin pH and provides intrinsic antimicrobial properties. The fermentation process significantly enriches the soybean extract with beneficial compounds like peptides and lactic acid. These bio-actives are known to enhance skin firmness, restore elasticity, and stimulate the endogenous production of critical dermal proteins, including collagen I, collagen V, and elastin. Furthermore, this ferment filtrate supports a balanced skin microbiome, aids in cellular regeneration, offers anti-wrinkle and brightening effects, and possesses anti-inflammatory and antioxidant capabilities.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 6 – 8
0 7 14

Stability

Optimal pH for *Propionibacterium* growth during fermentation typically ranges between 6 and 8, with a pH of 6.5 demonstrated for stable, long-term propionic acid production from soy molasses. Bacteriocins produced by *Propionibacterium* species are generally stable across a broad pH spectrum, suggesting the active components within the filtrate maintain stability within a slightly acidic to neutral pH range.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

While the Cosmetic Ingredient Review (CIR) Expert Panel has evaluated many soy-derived ingredients, concluding 24 out of 28 were safe, this specific combined ingredient has not been explicitly reviewed. No specific safety assessments by SCCS or FDA exist for 'Propionibacterium acidipropionici/soybean extract ferment filtrate'. The overall safety in cosmetic formulations would be contingent on its final composition and concentration, particularly considering that related species like *Propionibacterium acnes* can exhibit dose-dependent cytotoxicity from propionic acid at elevated levels.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

This ferment filtrate offers compelling benefits across skin conditioning, anti-aging, and microbiome support through well-understood mechanisms, though specific clinical studies for this exact ingredient are currently limited.

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