I am in my 5th week of primo only,,,,,,to be honest it does not " kick in" I have had some allright strength gains and I see alot more definition in my muscle but nothing drastic.......
To tell you the truth after doing sus, decca and eth,decca this cycle is a let down in the mass department but I do like the way my body is hardening up.........Just a different effect but still good,
I don't think primo should be used as a mass drug but that is just form MY EXPERIENCE so far, Gains don't compare to other drugs that are alot cheaper....aka SUS,T-200, DECCA ( I will never use decca again but it deffiantly helped me put on some mass)