That you need to verify with bloods if you need T4 or not but i tell you this .... I used HGH for a year at 4iu Ed and ended up with 0 FT4 and normal FT3 levels.If i use t4 on my bulking is hard for me to gain weight , imagine if i put t3. I believe only a small % of people needs t4 with HGH usage . What do you think about that ?
T4 doesn't speed so much your metabolism to "not be able to bulk".