Science
Mechanism of Action
The fermentation process significantly boosts the bioavailability of active compounds within rice bran and acai. This complex ingredient acts as a potent antioxidant, neutralizing reactive oxygen species. It actively inhibits melanogenesis and suppresses pro-inflammatory cytokines, reducing hyperpigmentation and redness. Furthermore, it reinforces the skin's lipid matrix, effectively reducing transepidermal water loss (TEWL) and enhancing overall hydration. It promotes collagen and elastin synthesis, improving skin structure and elasticity, while also balancing the skin microbiome and boosting natural moisturizing factors (NMFs).
Research
Clinical Evidence
Medium confidence10%
Key findings
- 01 A 10% fermented black rice bran extract significantly diminished melanin and erythema on the forearm within 14 days, indicating skin brightening and soothing effects.
- 02 Fermented rice bran extracts demonstrated a marked improvement in collagen and elastin synthesis, reduced water loss, increased collagen deposition, and enhanced skin elasticity and quality in both in vitro and in vivo models.
- 03 An emulsion containing yeast/rice fermentation filtrate led to a 25.05% decrease in transepidermal water loss (TEWL) within just 10 minutes.
- 04 After 8 weeks of consistent use, a face cream incorporating yeast/rice fermentation filtrate showed significant reductions in the area and length of periocular wrinkles, alongside improvements in skin firmness and smoothness.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient generally supports pH-balanced formulations. Optimal enzymatic hydrolysis during its production occurs around pH 5.0. However, diligent preservation is essential for the stability of the final cosmetic product containing this fermented ingredient.
Safety
Safety Profile
No specific CIR or SCCS safety assessment is available for this exact ingredient. The CIR has categorized 'Yeast-Derived Ingredients' (which Monascus may fall under) as having 'Insufficient Data' (IDA) in 2023, requesting additional dermal sensitization data and information on the food use/GRAS status of the yeast species. Certain generic yeast-derived ingredients have been deemed safe if derived from species with both confirmed dermal sensitization and food use status. A key concern with Monascus fermentation is the potential production of citrinin, a mycotoxin; formulators should ensure that any Monascus-derived components adhere to strict limits for citrinin content.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While exhibiting promising multi-functional benefits derived from its fermented components, the official safety status for this exact complex remains 'insufficient data' by CIR, requiring further assessment and careful consideration of mycotoxin potential.
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