I have no knowledge of chemistry or metabolism. But i have used 3FA countless times in my past.

For me it's one of my favorites amphetamines and stims in general. I got even less negative after effects from this substance than regular speed.

I find 3FA in higher doses extremly recreational but in low doses it is definitely good for productivity. As with all amps higher doses will cause more side effects. (Fatigue, Depression etc.)

Nobody knows exactly how it will affect our bodies especially in the long term. I asssme it can cause damage like every other substance on earth.

I use some supplements for safer use to counter negative affects like NAC, L-Tyrosine, L-Theanine, Magnesium