SugarMouth
New member
The NIH study seems to indicate no appreciable difference between sub and im injections on test levels. But if someone could point me to a study that shows any impact on estrogen levels, I'd appreciate it.
Now that I could have sworn I read somewhere. Something about the absorption rate of Sub injections is slower than intra injections and results in less E2 spike. I could be wrong but thought I read that somewhere.