Science
Mechanism of Action
By leveraging its long-chain (C30-50) alkyl structure, this ingredient forms a hydrophobic, breathable film across the stratum corneum. This physical lattice effectively traps moisture within the skin—significantly reducing transepidermal water loss (TEWL)—while maintaining a non-occlusive finish that allows for normal skin respiration.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 In vivo TEWL assessments demonstrated that concentrations between 2-5% in gel and stick mediums significantly lowered water evaporation rates over a 3-hour window.
- 02 Dermal safety evaluations on 100% undiluted samples yielded a Primary Irritation Index (PII) of 0.0, indicating zero irritation potential.
Transparency
Dusting Analysis
Because it doubles as a structural stabilizer, it is rarely 'dusted' at negligible levels; however, for barrier-repair efficacy, it should be present at 2% or higher. Levels below 0.5% are likely only used for minor texture adjustments rather than functional skin benefits.
The Formula
Formulation
Stability
Highly thermally stable with a high melting point (60-70°C). It prevents product melting in warmer climates and provides a smooth glide upon application.
Synergies
- Ceramides
- Squalane
- Other long-chain esters
Conflicts
- Strong oxidizing agents
- High pH environments (>9.0) which may trigger hydrolysis
- Cold-process manufacturing
Safety
Safety Profile
Due to its substantial molecular size, dermal absorption is virtually non-existent, ensuring systemic safety. It is documented as non-phototoxic and non-sensitizing.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptionally safe and effective barrier-reinforcing agent that provides necessary structural stability to high-performance skincare sticks.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources