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Moumoujus

C28-52 OLEFIN/UNDECYLENIC ACID COPOLYMER.

Valuable

A sophisticated, hyperbranched synthetic polymer engineered to enhance the endurance and performance of topical formulations. It creates a breathable, hydrophobic barrier that secures active ingredients to the skin's surface while providing a high-gloss finish.

Summary

SPF Enhancer Film Former Viscosity Controller Anionic Emulsifier Gloss Agent

Science

Mechanism of Action

Utilizing a unique 'branch-on-branch' molecular architecture, this copolymer functions as a superior film-former that optimizes the spatial distribution of UV filters and active ingredients. Its hydrophobic nature ensures high substantivity, preventing product wash-off, while its high refractive index improves the aesthetic luminosity of the skin and hair.

Research

Clinical Evidence

High confidence
Effective range 1–2%
Optimal

1.5%

Key findings

  1. 01 In vivo testing at 1.0% concentration demonstrated an SPF boost exceeding 50% when paired with photostabilizers due to improved UV filter dispersion.
  2. 02 In vitro comparative analysis at 2.0% showed significantly higher SPF retention after water immersion compared to traditional acrylate-based film formers.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

While often used in small quantities, concentrations below 1% in sunscreens may fail to provide the significant SPF boosting and water resistance documented in clinical trials.

The Formula

Formulation

Solubility
Oil
Optimal pH 3 – 12
0 7 14

Stability

Exhibits exceptional thermal stability and maintains integrity in low-pH environments. It can be neutralized in situ to serve as an anionic emulsifier.

Synergies

  • TMBP (Photostabilizers)
  • Organic UV Filters
  • Inorganic UV Filters (Zinc Oxide/Titanium Dioxide)
  • Lipophilic Actives

Conflicts

  • Strongly cationic surfactants
  • Cationic polymers (when neutralized)
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Components reviewed; polymer not individually reviewed
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

The high molecular weight of this polymer prevents transdermal penetration, ensuring it remains on the skin surface. Its monomer component, Undecylenic Acid, is already established as safe for leave-on use up to 10%.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

An essential performance-boosting polymer for high-persistence sunscreens and long-wear precision skincare.

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References

Sources