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C26-28 OLEFIN.

Valuable CAS 64743-02-8 (generic) / NOT REPORTED

A long-chain hydrocarbon wax that serves as a high-performance occlusive agent and texture refiner. It creates a breathable, protective film that smooths the skin's surface while enhancing the structural integrity of anhydrous formulations.

Occlusive Emollient Film Former Viscosity Controlling Skin Conditioning

Science

By forming a hydrophobic barrier on the stratum corneum, this ingredient significantly mitigates trans-epidermal water loss (TEWL). Its long-chain molecular structure provides superior lubricity and gloss, improving the skin's tactile 'slip' without the heaviness associated with traditional waxes.


Research

Medium confidence
Effective range 1–25%
Optimal

N/A

Key findings

  1. 01 Safety assessments confirmed that C26-28 olefin-containing compounds are non-irritating and non-sensitizing in dermal applications.
  2. 02 Acute dermal toxicity testing indicates a high safety profile with no systemic toxicity detected (LD50 > 2 g/kg).

Transparency

Not commonly dusted

This ingredient is typically utilized for its physical properties—such as viscosity control and film formation—rather than as a marketing 'hero' ingredient, making it an unlikely candidate for dusting.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly stable and resistant to oxidative degradation. It requires a phase temperature of approximately 52°C to ensure complete melting and uniform integration into the oil phase.

Synergies

  • UV Filters
  • Non-polar emollient oils
  • Mineral waxes

Conflicts

  • Water
  • Highly polar solvents

Safety

CIR Status
Safe as used
Max tested
25%
Pregnancy
Safe
Sensitization risk Low

Considered safe and inert; primarily functions as a physical barrier with no evidence of systemic absorption or hormonal interference.


Your Skin

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

Our Assessment

Valuable

An excellent inert film-former that provides reliable moisture retention and a refined finish for dry and sensitive skin types.


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