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Moumoujus

TRIACONTANYL PVP.

Valuable CAS 136445-69-7 / FILM FORMING, HUMECTANT, VISCOSITY CONTROLLING

Triacontanyl PVP is a versatile polymer engineered to create a continuous, protective film on the skin's surface, enhancing moisture retention and imparting a smooth feel. It also functions as a humectant, drawing and holding moisture within the stratum corneum, effectively preventing dryness and supporting skin hydration.

Summary

Film-forming Humectant Viscosity controlling Pigment dispersing Skin barrier support

Science

Mechanism of Action

This ingredient operates primarily as a film-forming agent, establishing a lightweight, continuous barrier on the skin. This film physically impedes trans-epidermal water loss, thereby maintaining skin hydration and contributing to a supple texture. Concurrently, it acts as a humectant, actively absorbing and retaining water, facilitating increased moisture levels within the skin's outermost layer. Beyond its dermal benefits, it aids in dispersing and suspending pigments uniformly within formulations and contributes to overall product viscosity control.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 3 – 9
0 7 14

Stability

Triacontanyl PVP exhibits robust stability across a pH range of 3.0 to 9.0 and is highly heat tolerant. For optimal integration, it should be incorporated into the oil phase of a formulation. It demonstrates broad compatibility with numerous polymers, solvents, and other cosmetic additives.

Conflicts

  • strong oxidants

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed Triacontanyl PVP's safety for use in cosmetic applications under current practices. It typically maintains a purity exceeding 97% with minimal water content (less than 2%) and may contain trace impurities such as up to 20 ppm residual vinylpyrrolidone monomer and up to 500 ppm hexanol. While one rabbit dermal irritation study reported 'slightly irritating' effects with a 0.5g moistened application, another extensive 2 g/kg dermal study under occlusive conditions for 24 hours indicated 'no evidence of irritation.' Consequently, it is generally recognized as safe, even in products formulated for sensitive skin.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Triacontanyl PVP is a valuable ingredient, safely contributing to enhanced moisture retention, skin barrier support, and a desirable smooth feel, while also providing crucial formulation stability and pigment dispersion.

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