Science
Mechanism of Action
It functions as a breathable occlusive by forming a hydrophobic film on the stratum corneum, which effectively traps moisture and reduces transepidermal water loss (TEWL). Additionally, as a branched-chain isoalkane, it serves as a texture enhancer and solvent, facilitating the even distribution of other active ingredients without the heaviness associated with traditional paraffins.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 The CIR Expert Panel (2012) validated its safety and non-irritating profile in facial applications at concentrations reaching 10%.
- 02 Industry surveys indicate functional efficacy as a texture modifier in leave-on products even at levels as low as 0.08%.
Transparency
Dusting Analysis
While it can be used at levels up to 10% for significant barrier repair, it is often 'dusted' at concentrations below 0.1% primarily to improve the application feel or for marketing claims, providing negligible occlusive benefits at those levels.
The Formula
Formulation
Stability
Highly stable saturated hydrocarbon that is resistant to oxidation and hydrolysis; it maintains structural integrity across a wide pH range.
Synergies
- Squalane
- Glycerin
- Ceramides
Conflicts
- Strong oxidizing agents
Safety
Safety Profile
Extensive testing confirms it is non-genotoxic and lacks reproductive toxicity; historical concerns regarding rat-specific nephrotoxicity are not applicable to human biology.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A reliable and inert barrier-reinforcing agent that provides essential moisture retention for dry and sensitive skin with a premium cosmetic finish.
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References
Sources