Science
Mechanism of Action
This ingredient operates as a deodorant through a dual approach: persimmon polyphenols and condensed tannins directly adsorb or mask malodorous substances. The fermentation process further amplifies the juice's natural antioxidant activity, total phenolic content, and total flavonoid content. Additionally, enzymes present from Saccharomyces fermentation contribute to the bio-conversion of malodorous compounds. Polyphenols from the astringent persimmon component are also recognized for their ability to inhibit tyrosinase, indicating a mechanism for skin brightening.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The ingredient maintains stability and functionality within acidic environments, consistent with the observed pH decline from approximately 5.9 to 4.2 during typical persimmon fermentation processes.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has issued an 'Insufficient Data Announcement' for yeast-derived ingredients, requesting specific confirmatory human dermal sensitization data and clarification on 'Generally Recognized As Safe' (GRAS) status for cosmetic applications. Existing FDA GRAS affirmations for Saccharomyces cerevisiae relate to food use, not necessarily topical cosmetic application; 28-day dermal toxicity data may serve as an alternative.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While exhibiting promising deodorant, antioxidant, and potential brightening benefits for sensitive skin types, further robust clinical and safety data are required to fully evaluate its comprehensive profile for precision skincare formulations.
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References
Sources