Science
Mechanism of Action
As a lipophilic prodrug, its cetyl ester structure allows it to penetrate the stratum granulosum more effectively than traditional water-soluble tranexamic acid. Once absorbed, skin esterases hydrolyze the molecule into active tranexamic acid, which interrupts the conversion of plasminogen to plasmin. This action effectively shuts down the inflammatory signaling pathway—specifically arachidonic acid and prostaglandins—that triggers melanocyte overactivity and pigment production.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 An 8-week clinical trial utilizing a 2% concentration demonstrated a 16.9% reduction in the melanin index and a significant 34.3% reduction in the erythema index.
- 02 A 3% concentration study on deep skin tones revealed visible improvements in post-inflammatory hyperpigmentation (PIH) within a 3 to 10-day window.
Transparency
Dusting Analysis
Because it is a specialized and more expensive ester of tranexamic acid, products using it at concentrations below 1% may not provide the rapid pigment correction seen in clinical trials.
The Formula
Formulation
Stability
Highly pH-sensitive; levels exceeding 5.0 can trigger premature hydrolysis or ingredient instability. As a cationic molecule, it can also provide auxiliary emulsifying properties.
Synergies
- Oil-based antioxidants
- Lipophilic delivery systems
Conflicts
- Anionic surfactants
- Anionic thickeners such as Carbomer
- Formulations with pH above 5.5
Safety
Safety Profile
Confirmed as non-irritating and non-sensitizing through Human Repeat Insult Patch Testing (HRIPT).
Your Skin
Skin Compatibility
Our Assessment
Verdict
An elite brightening agent that outperforms traditional tranexamic acid in depth of penetration and speed of results for stubborn hyperpigmentation.
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