Mild shedding is common when starting many new hair loss treatments, although it is not usually reported with TRX2. Overall, shedding means that miniaturized hairs are starting a new cycle. If this was stimulated due to TRX2, you can expect the hairs (when they grow back and re-cycle) to become thicker and stronger.
Shedding can be a normal part of your hair cycle (many people report increased shedding during wintertime, springtime, etc.) and should not be permanent. If your shedding becomes worse, you should always contact your personal physician.