Clen/Ephedrine/Beta 2 Agonists While Bulking to Lean Out?

[quote]nattybrah wrote:
Is this a scientifically backed thing, or broscience?

Will using clenbuteral while bulking help reduce fat cells, since it taps into fat storage for energy.

Also, i read on one website that it isnt safe to do more than 3-4 clen cycles of 2 weeks each within a 1 year period. This sounds stupid, but i gotta confirm, is this true?[/quote]

beta-2 agonists activate the beta receptors in muscles (and fat), which can lead to an increase in protein synthesis. so yes, they can help you gain LBM. but, androgens are way more effective in building muscle, so beta agonists are generally used for fat loss instead.