Myself, i wouldn't be hesitant to use that tren.
i tested so several labs, Z-lab states as good as some of the best i tested on me.
i'm not curently running this lab, but i'm sure it's stable and reliable.
and also. for the price. you got real good stuff.
not underdosed... some guyz are telling, or told BS just to discredite and promote the labs which they are involve.
Like SCNTO said ther's competition between labs.
Z made his own label after a long experience in this way... it's, for me, a great guaranty off success for who run these stuffs.