Science
Mechanism of Action
This ingredient functions as a superior occlusive emollient by depositing a fine, hydrophobic waxy film over the stratum corneum. This physical barrier significantly minimizes trans-epidermal water loss (TEWL) and enhances the skin's lipid profile without the heaviness associated with shorter-chain esters.
Research
Clinical Evidence
High confidence10%
Key findings
- 01 In human occlusive patch tests at 2%, the ingredient recorded a Primary Irritation Index of 0.03 to 0.11, confirming its non-irritating nature.
- 02 A clinical trial of 54 subjects at a 10% concentration demonstrated no evidence of sensitization, irritation, or photosensitivity.
- 03 A Human Repeated Insult Patch Test (HRIPT) involving 111 subjects at 50% concentration identified the substance as a non-sensitizer and, at most, a very mild irritant.
Transparency
Dusting Analysis
Because it is primarily used for structural integrity in sticks or as a primary emollient in creams, it is usually included at functional levels. Levels below 1% in a stick formulation may suggest it is being used for marketing claims rather than textural performance.
The Formula
Formulation
Stability
A high-melting-point solid that offers excellent thermal stability in anhydrous systems. It is stable within standard cosmetic pH ranges but can undergo hydrolysis if exposed to extreme acidity (pH <3) or alkalinity (pH >10).
Synergies
- Mineral oil
- Vegetable triglycerides
- Silicone waxes
Conflicts
- Strong oxidizing agents
- Strong mineral acids
- Strong bases
Safety
Safety Profile
The CIR Expert Panel considers it safe up to 46% based on its structural similarity to other non-toxic alkyl esters; it is prioritized for formulations designed to be non-irritating.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent structuring and moisture-locking agent for dry and sensitive skin, though its moderate comedogenicity suggests caution for acne-prone individuals.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources