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Moumoujus

NYLON-6.

Valuable CAS 25038-54-4 / BULKING, VISCOSITY CONTROLLING

Nylon-6 is a polymer widely utilized in precision skincare for its textural and functional benefits. It forms a uniform, non-occlusive film of spherical particles on the skin, enhancing sensory appeal with a silky finish. This ingredient also offers distinct advantages in managing sebum and stabilizing formulations.

Summary

Bulking agent Opacifying agent Viscosity controlling agent Sebum control Active ingredient fixative Sensory enhancer

Science

Mechanism of Action

Nylon-6 functions primarily as a sophisticated textural and formulation agent. Upon application, its spherical particles create an elegant, silky feel while forming a thin, non-occlusive layer. Its porous structure and lipophilic nature contribute to effective sebum absorption and control, making it beneficial for oily skin types. Furthermore, Nylon-6 exhibits advanced adsorptive/desorptive properties, enabling it to gradually release entrapped active ingredients or emollients, thereby acting as a fixative within complex formulations.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

Nylon-6 is reported as a chemically inert powder at a neutral pH of 7. Its fibers demonstrate resistance to both acids and alkalis, indicating robust chemical stability. It possesses the capacity to absorb a measurable percentage of water into its inherent structure.

Conflicts

  • Attacked by strong mineral acids
  • Absorbs polar solvents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
20%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has determined Nylon polymers, including Nylon-6, to be safe for cosmetic application. Their substantial molecular size significantly limits skin penetration. Reviews of the component monomers, such as caprolactam, found no evidence of significant toxicity, genotoxicity, or carcinogenicity. Products containing Nylon ingredients have not been associated with significant dermal irritation or sensitization. Furthermore, Nylon-6 adheres to European Union cosmetic regulations without restriction and holds FDA approval for use in indirect food contact surfaces (21 CFR §177.1500) and as non-absorbable surgical sutures (21 CFR §878.5020). The highest reported concentration of Nylon-6 in cosmetic formulations is 20% in eyebrow pencils.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Nylon-6 is a valuable ingredient, safely enhancing product aesthetics, controlling sebum, and acting as a controlled-release vehicle for actives across all skin types with low irritation and comedogenicity potential.

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