how does xenadrine and hydroxycut work to burn fat

[JLD2002]

How does xenadrine and hydroxycut work to burn fat? I remember a post awhile back about it with alot of info on this topic. I did a search and could not find it.

 

[Complete Muscle]

thermogenisis (raised body temp) supposedly... more of an appetite suppresant than thermogenic to me. I believe ECA only raises metabolism 2-3%.