Science
Mechanism of Action
This ingredient mimics the molecular architecture of natural skin ceramides by utilizing a polar head group and a long-chain lipid tail derived from ricinoleic acid. It integrates into the skin's lipid lamellae, physically filling microscopic voids in the intercellular matrix to create a cohesive, impermeable shield against environmental stressors and transepidermal water loss.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 Clinical evaluation at concentrations of 0.1%–1.0% demonstrated significant restoration of skin barrier integrity and a reduction in TEWL (transepidermal water loss).
- 02 Hair care applications at 0.5% showed marked improvements in cuticle smoothness and lipid cement reinforcement, increasing shine and breakage resistance.
Transparency
Dusting Analysis
With an active threshold as low as 0.1%, this ingredient is rarely 'dusted'; however, for maximum barrier repair in clinical-grade formulas, a concentration near 1.0% is preferred.
The Formula
Formulation
Stability
Highly stable against oxidation due to its amide linkage; it remains robust in both O/W and W/O emulsions and can withstand heating up to 80°C during formulation.
Synergies
- Cholesterol
- Fatty Acids
- Natural Moisturizing Factors (NMF)
Conflicts
- Extreme pH environments (<3 or >9)
- Strong oxidizing agents
Safety
Safety Profile
Both the castor oil and aminopropanediol components are well-established for safety in topical applications, showing no significant sensitization at clinical levels.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential biomimetic lipid for restoring skin barrier function and moisture retention without the high cost of pure ceramides.
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