Go online,where u can type in questions an have 20sites pop up and run threw those learning what u can..asking a question like that...Really! But il say this if your doin 1kit of somatropin your wasting your time.I know it cost alot but unless you do a min 3iu 5days a week for 3-4months its a waste...to be honest thats even a waste unless ur adding test an a few other things...pct for HGH if u needed it would be cjc1295 an ghrp-6 100mcg 2-3times a day of each. I run cjc1295 an ghrp-6 with pct after AAS an it works great<cheap too.