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Moumoujus

BIS-(C1-8 ALKYL LAUROYL LYSINE DECYLCARBOXAMIDE) DIMETHICONE.

Valuable CAS - / SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING, VISCOSITY CONTROLLING

An advanced hybrid amino acid-silicone polymer engineered to replicate the skin's natural lipid structure. This high-performance emollient reinforces the moisture barrier with a sophisticated, non-greasy finish, bridging the gap between clinical barrier repair and premium sensory elegance.

Summary

barrier repair emollient skin-protecting texturizer

Science

Mechanism of Action

This 'pseudo-ceramide' utilizes its amino acid derivative (Lauroyl Lysine) and Decylcarboxamide groups to organize into a lamellar liquid crystal structure. This architectural alignment mimics the skin's own intercellular lipid bilayer, allowing it to effectively seal gaps in the stratum corneum, prevent water loss, and provide a protective, cushiony texture.

Research

Clinical Evidence

High confidence
Effective range 0.5–2%
Optimal

1%

Key findings

  1. 01 Application at a 1.0% concentration resulted in a 20% decrease in Trans-Epidermal Water Loss (TEWL) and rapid barrier restoration within 60 minutes.
  2. 02 Demonstrated significant improvements in surface smoothness and moisture retention, behaving similarly to natural skin ceramides.

Transparency

Dusting Analysis

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

Because this ingredient provides immediate sensory benefits even at low levels, brands may include it at 'claim' levels (below 0.1%). However, clinical data suggests a minimum of 0.5% is required for objective barrier repair and TEWL reduction.

The Formula

Formulation

Solubility
Oil
Optimal pH 3 – 9
0 7 14

Stability

Extremely robust across temperature and pH variations; compatible with both hot and cold processing.

Synergies

  • Ceramides
  • Squalane
  • Fatty Acids

Conflicts

  • Purely aqueous systems (requires pre-emulsification)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Its constituent parts, Dimethicone and Lauroyl Lysine, are well-documented for their safety and lack of irritation.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A sophisticated, biocompatible barrier-repair agent that offers clinical efficacy with superior cosmetic elegance.

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