My Thoughts On Testosterone Replacement Therapy and HCG (and If/When You Should Consider It) Welcome to Part 4 of our comprehensive hormone replacement therapy (HRT) series (click for index) . In the past 2 sections, I shared the 2 primary hormone replacement therapy protocols that I have used for the past decade. In terms of testosterone replacement , the results were - #1 Underground Testosterone 250mg (every 7 days) + HCG 250ius (every 3...