Melasma and post-inflammatory erythema resist standard brightening creams. Tranexamic acid blocks the plasmin-mediated release of melanocyte-stimulating factors.
1. Multi-Pathway Pigment Disruption
- Plasmin Cascade Inhibition: Tranexamic acid prevents UV-induced plasmin activation in keratinocytes, cutting off signals that trigger melanocyte hyperactivity.
- Tyrosinase Enzyme Blockade: Alpha-Arbutin and Kojic acid inhibit the rate-limiting enzyme responsible for converting L-tyrosine into dark eumelanin.
- Gentle Daily Efficacy: Non-hydroquinone formulation provides long-term daily safety without risk of rebound hyperpigmentation or ochronosis.
