i am not familiar with lean extreme although isnt lean extreme usually used for VAT, fat under the abdominal muscle caused by cortisol...but if you are only going to run it for a month ..i would personally opt for DCP/Leviathan Reloaded .... HOWEVER, Recreate is by far my favorite fat burner ..but you really should run for at the very minimum 8 weeks and you will see incredible results ..and it has muscle sparing properties like no other fat burner , recreate also helps to reduce/control cortisol in addition to all the other benefits ..just my opinion.