i have not heard of any fakes but you never know. the ones i had, you could take a razor and try to scrape the print off the amps and it would not come off. and they were as real as they get!
The redi jects are the safest bet. No fakes as of yet due to the cost of making them. With anything that comes in an amp, you can just about count on there being a fake of it out there somewhere.
strong shit man , took 8 weeksof niles and gained 15lbs and 3 months later took karachi and by week 3 i was up 12lbs with way better strengh and stamina, ended up gaining 25lbs