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BUTYLOCTYL BEESWAX.

Valuable CAS 151661-98-2 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A synthetic wax ester engineered from natural beeswax and butyloctanol that delivers superior oxidative stability compared to traditional beeswax. This emollient creates a protective barrier while smoothing skin texture, making it particularly valuable in waterproof and long-wearing formulations.

emollient skin conditioning barrier protection

Science

Forms a semi-occlusive film on the skin surface that reinforces the natural lipid barrier and reduces transepidermal water loss. Simultaneously fills microscopic gaps in the stratum corneum to create smoother skin texture while providing protection from environmental stressors.


Research

Medium confidence
Effective range 1.2–46%
Optimal

3%

Key findings

  1. 01 Non-irritating at 3-5% concentration in 48-hour human occlusive patch testing with minimal irritation in repeat insult studies
  2. 02 Demonstrated non-irritating properties at 1.2% in 24-hour human patch tests
  3. 03 Pure ingredient showed non-comedogenic properties in rabbit ear assays, though 50% concentration in mineral oil was marginally comedogenic

Transparency

Not commonly dusted

Primarily used in stick formulations and waterproof products where its wax properties are functionally necessary rather than as marketing filler


The Formula

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

Exhibits exceptional oxidative stability superior to natural beeswax with resistance to rancidity. Susceptible to hydrolysis under extreme pH conditions outside the 4-8 range.

Conflicts

  • strong oxidizing agents
  • strong acids
  • strong bases

Safety

CIR Status
Safe as used
Max tested
46%
Sensitization risk Low

CIR Expert Panel concluded safety in current usage patterns when formulated to be non-irritating. Safety assessment based on broader alkyl esters category due to limited specific usage data.


Your Skin

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

Our Assessment

Valuable

A technically superior synthetic wax that offers enhanced stability and barrier protection with excellent safety profile across all skin types.


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