Science
Mechanism of Action
Functioning as both a potent antioxidant and an effective humectant, this ferment filtrate provides multi-faceted support to the skin. Its primary active component, resveratrol, is critical for its anti-aging effects, stimulating collagen production, visibly minimizing the appearance of fine lines and wrinkles, and offering protection against UV-induced damage. The ingredient also exhibits significant anti-inflammatory capabilities, helping to soothe redness and irritation. Furthermore, it contributes to a brighter complexion by inhibiting melanin synthesis, which can aid in fading dark spots and promoting a more even skin tone. Resveratrol's antibacterial properties also render it beneficial for targeting acne-related concerns. The extract demonstrates strong anti-collagenase activity and moderate anti-hyaluronidase activity, both crucial for maintaining skin integrity, with the fermentation process specifically enhancing its overall bioavailability and efficacy.
Research
Clinical Evidence
Medium confidence10%
Key findings
- 01 Utilized in various skin care serum formulations at concentrations between 0.009% and 0.061%.
- 02 Preferably present within a blend for topical compositions at 5% - 20%, with optimal inclusion at 10% - 15%.
Transparency
Dusting Analysis
This ingredient is a ferment filtrate, indicating it is typically in liquid form and therefore not subject to dusting considerations during formulation.
The Formula
Formulation
Stability
The fermentation process itself is implemented to enhance the ingredient's efficacy and potentially its stability. Research suggests that encapsulation of Polygonum cuspidatum flower extract in liposomes can further improve stability and optimize the delivery of phenolic compounds in dermocosmetic applications.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has issued an 'Insufficient Data Announcement' for yeast-derived ingredients, requesting further dermal sensitization data and information regarding the yeast species' food use/GRAS (Generally Recognized As Safe) status. While unfermented 'Polygonum Cuspidatum Root Extract' is on CIR's 2024 Final Priorities List for review, a specific safety assessment for the combined 'Saccharomycopsis/Polygonum Cuspidatum Root Extract Ferment Filtrate' is not currently available. Individual skin reactions, such as rashes or itching, may occur, particularly in those with sensitive skin or known allergies.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient offers a compelling spectrum of potential benefits for skin health, including anti-aging, anti-inflammatory, and brightening effects; however, comprehensive safety data for this specific fermented form is currently insufficient, necessitating cautious evaluation for widespread application.
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