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C18-38 ALKYL BEESWAX.

Valuable CAS 223706-17-0 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A high-performance synthetic wax derivative designed to mimic the benefits of natural beeswax while providing superior formula stability. It functions as a structured emollient that enhances the skin barrier without the heavy or tacky sensation often associated with traditional waxes.

Emollient Occlusive Viscosity controlling Skin conditioning Plasticizer

Science

This lipophilic ester integrates into the skin's natural lipid structure, forming a breathable, semi-permeable film. This barrier significantly reduces trans-epidermal water loss (TEWL) while acting as a plasticizer within formulas to ensure a smooth, flexible application that resists cracking or crystallization on the skin surface.


Research

High confidence
Effective range 1–11%
Optimal

5%

Key findings

  1. 01 Clinical evaluations conducted by the CIR Expert Panel (2015) confirm its efficacy as an occlusive conditioner that restores elasticity and minimizes flaking in the stratum corneum.

Transparency

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

As a structural agent and emollient, it is typically used at concentrations between 1% and 11% to achieve the desired texture and barrier protection. Inclusion below 1% in barrier-focused products may indicate 'label dusting' rather than functional efficacy.


The Formula

Solubility
Oil
Optimal pH 4 – 9
0 7 14

Stability

Maintains structural integrity across a broad pH range; has a melting point of 70-75°C. It is particularly effective at stabilizing water-in-oil (W/O) emulsions.

Synergies

  • Castor wax
  • Mineral oils
  • Plant triglycerides

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Max tested
11%
Pregnancy
Safe
Sensitization risk Low

Recognized as safe for leave-on applications up to 11%, though its parent material (natural beeswax) is safely used at much higher concentrations.


Your Skin

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

Our Assessment

Valuable

An excellent structural emollient for strengthening the skin barrier and improving product texture without irritation.


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