Science
Mechanism of Action
This ingredient functions through its unique molecular length (18 to 30 carbon atoms), which allows it to form a refined hydrophobic film atop the stratum corneum. This physical barrier significantly minimizes transepidermal water loss (TEWL) while simultaneously increasing the viscosity of the oil phase, ensuring a stable, homogenous emulsion that resists phase separation.
Research
Clinical Evidence
Medium confidence2.5%
Key findings
- 01 Extrapolated safety data from 1,2-glycols demonstrate enhanced skin-penetration and humectancy.
- 02 Repeated Insult Patch Tests (RIPT) on analogous C15-18 glycols confirmed a lack of sensitization and irritation at concentrations up to 5%.
Transparency
Dusting Analysis
Because it primarily serves as a structural stabilizer and occlusive agent, using it below 0.5% often yields negligible benefits to the formula's texture or moisture-retention capabilities.
The Formula
Formulation
Stability
Highly stable due to its saturated chemical structure; it is inert and resistant to hydrolysis across a broad pH spectrum.
Synergies
- Humectants
- Ceramides
- Fatty Acids
Conflicts
- Strong oxidizing agents
Safety
Safety Profile
Classified as safe by the CIR Expert Panel (2011) due to its high molecular weight, which prevents deep systemic absorption.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptionally stable emollient that provides superior barrier protection and formula integrity for dry and sensitive skin profiles.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources