Quote Originally Posted by MIKE_XXL View Post
Regardless what anyone says, Clen is usless in my opinon, it downregulates the beta receptor extremely fast and it's not even that much more effective then ECA stack which works indefinitly...i am not sure why anyone would buy / use clen and not ECA. I say this time in and time out...ECA all the way, the amount of added benifit from Clen is so marginal that it has no use in BBing, not to mention it reduces your insulin sensitivity so it can interfear with carb up if ran to close to the show leaving a person looking flat...my 0.02cents on clen...
There are people that dispute the carb up interference on MD vehemently.

Also...it raises your rmr by ~10% ECA CAN'T do that