P90x Review

p90x review

p90x review
P90x or Insanity? Reviews/Opinions/ and help?

I am 5ft11 and 155Lbs. I am a carpenter so I have good muscle in my biceps etc... my core is week though, I am thin so I have a defined 6pac but I know I have a week core. I am looking to bulk up and improve core strength, are either of these programs good for bulking up as I do not wish to lose weight? Thanks
Oh. I am male, using my wifes profile.

Both those programs are cardio, that means weight loss. In order to bulk up, you'll need to lift heavy weights, and eat lots of protein, 1 gram per pound of bodyweight.