I've only been doing this program for a few weeks now, but it has definitely helped. I've thrown on a solid 1/4" on my arms so far, and I've done it w/out the use of steroids at this time(I've cycled several times before) and I've also been in the gym the past 9-10 years. I got the program off Muscleandfitness.com type in "ultimate Arm pump" under the search bar in the site, they claim you'll throw like 2" on your arms in a month, now we all know that's bullshit even with serious drug help, but I will say that I've thrown 1/4" on in 2-3 wks, and my arms are stubborn as ****.