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Moumoujus

C20-24 ALKYL DIMETHICONE.

Valuable CAS 200074-76-6 / SKIN CONDITIONING, VISCOSITY CONTROLLING

A specialized silicone-derived wax that bridges the gap between traditional oils and silicons, providing a unique texture and protective barrier. It is primarily utilized in high-performance skincare to impart a velvety finish while preventing moisture loss without a heavy residue.

Summary

Emollient Viscosity controlling Skin conditioning Water-repellent agent

Science

Mechanism of Action

This ingredient functions as a semi-occlusive emollient by forming a breathable, water-resistant film on the stratum corneum. The integration of long-chain alkyl groups (C20-24) into the silicone structure reduces the surface tension of formulation oils, facilitating superior spreadability and effectively reducing transepidermal water loss (TEWL).

Research

Clinical Evidence

High confidence
Effective range 0.5–12%
Optimal

5%

Key findings

  1. 01 Substantial enhancement of formula stability and sensory profile refinement.
  2. 02 Demonstrated significant water-repellency and long-wear durability in topical applications.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.5%
Red flag below
0.1%

Typically used at functional levels for texture and stability; amounts below 0.5% are generally insufficient to provide the characteristic 'silky' skin feel or barrier protection.

The Formula

Formulation

Solubility
Oil
Optimal pH 3 – 10
0 7 14

Stability

A thermally stable waxy solid or viscous liquid with a melting point between 32°C and 75°C, making it ideal for stable emulsions.

Synergies

  • Sunscreen filters
  • Mineral pigments
  • Botanical oils

Conflicts

  • Water (insoluble)
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
85%
Pregnancy
Safe
Sensitization risk Low

The CIR Expert Panel confirms its safety in concentrations up to 85%, though typical cosmetic use remains well below 12%.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

An exceptional texture enhancer and barrier-supporting emollient that provides a sophisticated, non-greasy finish for all skin types.

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