MMUK

I've got to say I think NO2/pump enducing products could be counterproductive to building muscle.

I know I could be out on a limb a little here but there is NO scientific research to show them assisting in tissue growth other than them enabling your to cells to volumise quicker as you train.

You may think "great, hit the gym do a few sets and then out as I'm pumped to fcuk". But if you didn't have this volumiser you would have done more sets or possibly lifted more weight and broken down more fibres as your pump came naturally through hard work.

I'm fully aware about the claims it helps stretch the fascia around the muscle but quite frankly I'm not wearing that, breaking down the fibres is what causes growth not an argignine/stimulant based drink.

With regards to Ronnie Coleman and BSN products, did anyone ever see him use anything by them in any of his videos? No, because he had 6 Olympias under his belt by the time they sponsored him and lets be blunt, he was at his all time best BEFORE being a BSN athlete!

They pay him to say its the secret to his success so his testament means nothing.