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Moumoujus

CHITOSAN FORMATE.

Valuable CAS 66267-52-5 / FILM FORMING

A high-performance biomimetic polymer derived from chitin, Chitosan Formate acts as a breathable 'second-skin' barrier that excels in moisture retention and microbial defense. Its unique cationic structure allows it to bond effectively with the skin surface, providing long-lasting conditioning and enhanced delivery of co-formulated actives.

Summary

Film forming Skin conditioning Antimicrobial Humectant Penetration enhancer

Science

Mechanism of Action

As a polycationic molecule, Chitosan Formate carries a positive charge that electrostatically adheres to the naturally negative charge of skin cells. This interaction creates a semi-permeable, flexible film that prevents trans-epidermal water loss (TEWL) while simultaneously disrupting the membranes of harmful bacteria. Furthermore, it acts as a transient penetration enhancer by subtly modulating epithelial tight junctions to improve ingredient absorption.

Research

Clinical Evidence

High confidence
Effective range 0.1–5%
Optimal

1.5%

Key findings

  1. 01 Exhibited significant antimicrobial and antifungal properties against common pathogens like Candida albicans at concentrations between 2.0% and 5.0%.
  2. 02 Demonstrated superior moisture-binding capacity and film elasticity at a 1.0% concentration, forming a transparent protective layer.
  3. 03 Identified as an effective skin conditioner and barrier support agent within the standard cosmetic range of 0.1% to 2.0%.

Transparency

Dusting Analysis

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

While often included at trace levels (under 0.1%) for label claims, concentrations below 0.5% may fail to provide the significant film-forming and antimicrobial benefits observed in clinical data. Effective barrier support generally requires at least 1.0%.

The Formula

Formulation

Solubility
Water
Optimal pH 4.5 – 6
0 7 14

Stability

Maintains peak stability in acidic environments; if the pH rises above 6.3, the ingredient loses its cationic charge, which can lead to precipitation or gelling.

Synergies

  • Active actives requiring enhanced penetration
  • Glycerin
  • Lactic Acid

Conflicts

  • Anionic polymers (Carbomer, Xanthan Gum)
  • Anionic surfactants
  • Sodium Alginate
  • Strongly alkaline bases

Safety

Safety Profile

CIR Status
Safe as used
Max tested
2%
Pregnancy
Safe
Sensitization risk Low

Generally recognized as safe (GRAS) by the FDA when derived from specific sources like Aspergillus niger; purified forms show no evidence of irritation or allergic potential.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A multi-functional bio-polymer that provides essential barrier protection and antimicrobial benefits, though it requires precise pH control for formulation stability.

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