you can use it alone...or add some roids with some slin and or igf...but if you take it alone notthing is wrong with that but it will help you stay at a low bf%..but if you looking for muscle gainz from taking gh alone it wont happen..
Taking HGH alone would be a waste of a lot of $$ It should be run at 4-6iu/day (depending on age) for 5 days on and 2 days off. I would run it for 12-14 weeks MINIMUM
if your going for HGH alone you better be looking at a dosage in the 10 - 18 iu / day range , making it ( for all practical purposes) not $$ feasible .
Personal experience shows that doses in the 4-6iu range (5on/2off) + test and tricana makes a man big, strong, and lean ..... just like me