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Moumoujus

CASTANEA SATIVA BUD EXTRACT.

Valuable CAS 84695-99-8 / SKIN PROTECTING

A potent botanical extract derived from the embryomorphic tissues of the European Chestnut, rich in regenerative polyphenols. It serves as a precision tool for enhancing skin structural integrity while providing high-performance soothing through its advanced antioxidant profile.

Summary

Antioxidant Soothing agent Skin protecting Venous tonic Firming

Science

Mechanism of Action

The extract utilizes high concentrations of hydrolyzable tannins, such as castalagin and vescalagin, alongside flavonoids like rutin and quercetin to neutralize reactive oxygen species. It functions as a biological shield by inhibiting the NF-κB signaling pathway and suppressing pro-inflammatory cytokines (CXCL-10 and MCP-1). Furthermore, it exerts a venous tonic effect, supporting microcirculation to improve skin firmness and refine texture.

Research

Clinical Evidence

High confidence
Effective range 0.005–2%
Optimal

2%

Key findings

  1. 01 Application of a 2% bud extract complex demonstrated a 15% increase in skin firmness and a 9% reduction in 'orange peel' skin texture within 30 days.
  2. 02 In vitro testing at 0.005% (50 µg/mL) resulted in an 86.25% inhibition of the NF-κB inflammatory pathway, highlighting extreme potency in cellular soothing.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.5%
Red flag below
0.1%

While microscopic doses (0.005%) show cellular activity, the clinically significant improvements in skin firmness and texture require a 2% concentration. It is frequently included in formulas at trace levels (<0.1%) purely for botanical storytelling rather than functional efficacy.

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 5.5
0 7 14

Stability

Functional stability is optimized at pH 5.0. Stability degrades significantly as the environment approaches neutral (pH 7.1) or when exposed to sustained temperatures above 40°C.

Synergies

  • Antioxidants
  • Glycerin-based humectants
  • Other bud-derived extracts

Conflicts

  • High pH environments (> 7.0)
  • Strong oxidizers
  • Iron salts (causes formula darkening due to high tannin content)

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
2%
Pregnancy
Safe
Sensitization risk Low

While a standalone CIR report for the bud extract is pending, related botanical extracts from the same species are historically considered safe. Usage is typically capped at 2% for commercial efficacy.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A highly effective botanical for targeting both micro-inflammation and structural skin firmness, provided it is formulated at its clinical threshold of 2%.

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References

Sources