just recently baught 3 amps organon sustanon 250 (karachi) bacth no.412598xv,07-2012,p.r.002446,m.r.p.rs.40.83 gold writing white ring around the neck baxes macth amps. tops are really hard to pop off and the little black writting at the bottom won't come off. are they good or placebo p.s. did...