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Moumoujus

POLYDECENE.

Valuable CAS 37309-58-3 / 25189-70-2 / SKIN CONDITIONING

Polydecene, specifically Hydrogenated Polydecene, is a highly stable synthetic emollient and skin conditioning agent. It forms a non-occlusive protective barrier on the skin, effectively reducing transepidermal water loss. This action results in improved skin hydration, softness, and a noticeably smoother texture.

Summary

emollient skin conditioning hair conditioning masking perfuming solvent

Science

Mechanism of Action

Hydrogenated Polydecene primarily functions by creating a protective, non-occlusive film across the skin's surface. This physical barrier significantly minimizes transepidermal water loss (TEWL), thereby enhancing the skin's inherent capacity to retain moisture. The outcome is superior hydration, a softer feel, and a more refined skin appearance, while simultaneously safeguarding against environmental stressors. Its unique properties also contribute to a pleasant, non-greasy sensorial experience and facilitate the uniform distribution of cosmetic formulations.

Research

Clinical Evidence

Medium confidence
Effective range ≤35%
Optimal

N/A

Key findings

  1. 01 Formulations containing Hydrogenated Polydecene at concentrations up to 35% showed no adverse effects on skin moisturization or surface roughness in human subjects.
  2. 02 In vivo tests on 22 volunteers with atopic and dry skin, applying Hydrogenated Polydecene twice daily for 28 days, demonstrated no intolerance or irritation, along with positive effects on dryness, scaling, and skin roughness.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This ingredient exhibits exceptional stability across a broad range of temperatures and pH levels, including highly acidic (e.g., AHAs, BHAs) and highly alkaline environments. It maintains consistent performance during both hot and cold processes, making it highly versatile for diverse cosmetic formulations.

Conflicts

  • some types of silicon oils

Safety

Safety Profile

CIR Status
Safe as used
Max tested
100%
Sensitization risk Low

Hydrogenated Polydecene is generally considered safe for use in cosmetic products and is well-tolerated across various skin types. The Cosmetic Ingredient Review (CIR) Expert Panel concluded its safety for cosmetic applications, noting it was not a dermal sensitizer even at 100% concentration in testing.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Polydecene is a highly valuable, stable, and well-tolerated emollient that significantly enhances skin hydration, smoothness, and overall product aesthetics across a wide range of formulations due to its excellent stability and safety profile.

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