Science
Mechanism of Action
By forming a breathable, hydrophobic film across the epidermis, C29-70 Acid creates a physical seal that prevents transepidermal water loss. It integrates into the stratum corneum's lipid bilayer, filling gaps in the skin barrier while simultaneously providing structural integrity and viscosity to emulsions.
Research
Clinical Evidence
High confidence3%
Key findings
- 01 Demonstrated efficacy in barrier-repair formulations by reducing TEWL through the mimicry of natural skin lipids at concentrations between 0.5% and 5.0%.
- 02 Proven to act as a significant anti-irritant in high-alcohol hydroalcoholic systems at 1.0% to 3.0%, preserving skin comfort without compromising product performance.
Transparency
Dusting Analysis
Because this ingredient is frequently used for its functional role as a thickener and emulsifier, it is rarely 'dusted'; however, for clinical barrier repair benefits, it should be present at 0.5% or higher.
The Formula
Formulation
Stability
Possesses high thermal stability with a melting point between 80°C and 95°C. Requires precise heating during the oil phase for uniform distribution.
Synergies
- Ceramides
- Sterols
- Glycerin
Conflicts
- Strong oxidizing agents
- Highly alkaline environments (saponification risk)
Safety
Safety Profile
Classified as non-sensitizing and non-irritating even at the upper limits of typical cosmetic usage.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptional structural lipid that provides essential barrier protection and formula stability with an excellent safety profile.
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References
Sources