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BEHENYL/ISOSTEARYL BEESWAX.

Valuable CAS 235433-32-6 / FILM FORMING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING

A high-performance, structured wax ester that upgrades traditional beeswax into a sophisticated film-forming agent. It provides long-lasting hydration by creating a breathable lipid barrier that ensures a smooth, non-draggy application in luxury skincare formulations.

Occlusive Emollient Film Former Viscosity Modifier Texture Enhancer

Science

It functions as an advanced occlusive emollient. By forming a thin, non-greasy, and breathable network on the skin's surface, it prevents trans-epidermal water loss (TEWL) while its branched chemical structure enhances oil-binding stability and improves the overall texture of the formulation.


Research

High confidence
Effective range 3–100%
Optimal

5%

Key findings

  1. 01 A 48-hour SIOPT human clinical study confirmed that the 100% undiluted ingredient is non-irritating.
  2. 02 Patch testing on 100 subjects demonstrated zero irritation for formulations containing 3-5% concentrations.
  3. 03 Rabbit ear assays showed the undiluted material is non-comedogenic, maintaining high skin compatibility even at peak concentrations.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

Because it acts primarily as a structural and occlusive agent, it is rarely 'dusted' for marketing claims; its inclusion is typically functional to achieve specific rheological properties and barrier protection.


The Formula

Solubility
Oil
Optimal pH 3 – 11
0 7 14

Stability

Exhibits exceptional thermal stability with a melting point range of 66°C to 85°C. Its non-ionic nature allows for stability across a wide pH spectrum and improves the homogeneity of lipid phases.

Synergies

  • Mineral oils
  • Vegetable triglycerides
  • UV filters (acts as an SPF booster)

Conflicts

  • Cold-process aqueous phases (requires pre-melting and high-shear emulsification)

Safety

CIR Status
Safe as used
Max tested
97%
Pregnancy
Safe
Sensitization risk Low

Classified as a large, stable macromolecule that does not penetrate the skin barrier, eliminating risks of systemic toxicity.


Your Skin

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An elite occlusive agent that provides superior barrier protection and sophisticated skin-feel without the heaviness of traditional waxes.


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