I don't know what rGHG is What is it? 
Yeah I'm sure he used insulin. I was being sarcastic in my query.
RGE google it and you will find all the info.
comparing insulin with all the other stuff he was taking is nothing:
10-6 Weeks before the Competition daily:
2 injects Testoviron a 250 mg
1 inject Parabolan
30 tabletts Halotestin
30 tabletts Metandienon
20 iu gh
20 iu Insulin
5-3 weeks before the Competition daily:
3 injects Masteron
2 injects Parabolan
30 tabletts Halotestin
50 tabletts Stromba
2 injects Stromba
24 iu gh
unknown insulin
2-1 weeks before the Competition daily:
2 injects Masteron
2 injects Stromba
40 tabletts Halotestin
80 tabletts Stromba
24 iu gh
unknown Insulin
unknown IGF
A few days before the Competition: Aldactone, Lasix
he also ran Ephederine, AN 1, Captagon, Aspirine, Valium, Clenbuterol daily
all this shit was DAILY.he was also using a protein synthesis drug that thickened his blood and ultimately his liver literally disinegrated! go figure!