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Moumoujus

FERMENTED VEGETABLE.

Valuable / HUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Fermented vegetable extracts leverage the natural process of microbial fermentation to transform plant-derived compounds, breaking them down into more potent and bioavailable forms. This process generates a wealth of beneficial metabolites such as organic acids, peptides, and antioxidants, which are readily absorbed by the skin. As a result, this ingredient offers a multifaceted approach to skin health, addressing concerns from hydration and sensitivity to acne and aging.

Summary

soothing preservative skin conditioning anti-acne anti-inflammatory antioxidant hydrating anti-aging skin brightening barrier strengthening microbiome balancing

Science

Mechanism of Action

Fermentation significantly enhances an ingredient's efficacy by creating smaller, more bioavailable molecules that penetrate the skin more effectively. This process yields beneficial metabolites like lactic acid, peptides, and amino acids, acting as Natural Moisturizing Factors (NMFs) to boost skin hydration. These extracts support a balanced skin microbiome, fostering healthy microflora to alleviate issues such as acne, sensitivity, and dryness. They strengthen the skin barrier by stimulating ceramide and lipid production. Demonstrating potent anti-inflammatory properties, fermented ingredients modulate immune responses to soothe redness and irritation. They provide robust antioxidant defense through compounds like ferulic acid and polyphenols, neutralizing free radicals and protecting against environmental damage. Additionally, some fermented extracts brighten skin by inhibiting tyrosinase, the enzyme responsible for melanin synthesis, and offer anti-aging benefits by promoting collagen production while inhibiting collagenase and elastase.

Research

Clinical Evidence

High confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Demonstrated superior anti-acne efficacy, reducing lesion size and redness faster than salicylic acid.
  2. 02 Proven effective in reducing skin sensitivity.
  3. 03 Fermented maca root extracts exhibited higher anti-inflammatory activity compared to non-fermented counterparts.
  4. 04 A peptide from fermented Trapa japonica extract, integrated into an eye cream, significantly reduced skin wrinkles over 8 weeks.
  5. 05 Fermented Polianthes tuberosa L. flower extract (FPT) showed non-cytotoxic anti-glycation and anti-carbonylation activity. At 0.8 mg/mL, FPT significantly elevated endogenous antioxidant enzymes (GSH-Px and CAT) and restored SOD content, outperforming non-fermented extract.

Transparency

Dusting Analysis

Not commonly dusted

No data suggests that 'Fermented Vegetable' extracts are commonly dusted or used inappropriately in formulations.

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 5.5
0 7 14

Stability

This ingredient performs optimally within a slightly acidic pH range of 4.5 to 5.5. To preserve the integrity of its bioactive compounds, it must be incorporated during the cool-down phase of formulation, specifically below 40°C, to prevent denaturation. Precise control over temperature, pH, and fermentation duration is critical for yielding high-quality active extracts.

Conflicts

  • Exposure to high temperatures above 40°C, which can denature and deactivate bioactive compounds.
  • Formulation in jar packaging, as exposure to light and air can accelerate degradation.
  • Concurrent use with strong active ingredients such as retinoids, AHAs, BHAs, or benzoyl peroxide, which may cumulatively weaken skin tolerance.
  • Saccharomyces or other yeast-fermented ingredients should be avoided by individuals with a predisposition to fungal acne.
  • Sake or kombucha-based toners containing alcohol or essential oils, which can exacerbate sensitivity in skin with rosacea or a compromised barrier.
  • Excessive application of fermented fruit enzymes, potentially leading to over-exfoliation and thinning of the skin barrier.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The CIR Expert Panel considers specific Lactobacillus Ferment derivatives safe as used in cosmetics. However, as 'Fermented Vegetable' is a broad category, specific concentrations can vary. No general maximum concentration is defined, though specific studies indicate non-cytotoxicity below 10 µg/mL for general fermented ingredients and eye safety up to 100 µg/mL. Conversely, Polianthes tuberosa L. flower extract showed cytotoxicity at concentrations exceeding 0.8 mg/mL. A patch test is advisable for individuals with highly sensitive skin due to a minimal risk of allergic reaction.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Fermented vegetable extracts are a valuable, multifaceted ingredient that enhances skin health across various concerns, from acne and sensitivity to aging and hydration, offering broad compatibility and proven efficacy through advanced bioavailability.

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