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Moumoujus

C5-6 OLEFIN.

Optional CAS 64743-02-8 (generic) / NOT REPORTED

A high-performance synthetic hydrocarbon utilized primarily for its structural and film-forming capabilities in specialty skincare and depilatory formulations. It creates a resilient, hydrophobic barrier that enhances product texture and improves the 'grip' necessary for effective hair removal applications.

Summary

Viscosity controlling Film forming Opacifying Depilatory agent

Science

Mechanism of Action

It functions as a viscosity-increasing agent and a tacky resin. Upon application, it forms a thin, protective film on the skin's surface that prevents moisture loss and provides mechanical adhesion in depilatory products, allowing for efficient hair entrapment while remaining chemically inert to the skin barrier.

Research

Clinical Evidence

High confidence
Effective range 5–53.6%
Optimal

N/A

Key findings

  1. 01 Clinical Human Repeated Insult Patch Tests (HRIPT) on related copolymers at 35% concentration confirmed no evidence of irritation or sensitization.
  2. 02 Safety assessments highlight a large molecular weight range of 10,000 to 300,000 Daltons, which physically prevents dermal penetration and systemic absorption.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
1%

As a functional texture and film-forming agent, it is typically used at significant concentrations to achieve the desired physical properties of a formula; it is rarely used as a 'label-only' ingredient.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly thermally stable with melting points often exceeding 200°C. It is chemically inert and remains stable across a wide pH range.

Synergies

  • Lipophilic emollients
  • Mineral waxes

Conflicts

  • Water-only systems
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
53.6%
Pregnancy
Safe
Sensitization risk Low

While the precursor monomer styrene is monitored, residual levels in cosmetic-grade C5-6 Olefin copolymers are restricted to <100 ppm, far below safety thresholds.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

A reliable and safe functional resin used to provide structural integrity and film-forming properties, particularly essential in depilatory and water-resistant formulations.

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