A gonadotropin hormone that mimics luteinizing hormone (LH). Medically essential for fertility treatment in men and women. Used in the context of androgen therapy to maintain testicular function and stimulate endogenous testosterone production.
HCG serves two distinct functions in performance contexts. The first is testicular maintenance during anabolic cycles. When exogenous androgens suppress LH production, the testes receive no signal to produce testosterone and begin to atrophy over the duration of the cycle. HCG mimics LH and provides that signal, maintaining testicular size and func...
HCG is not stacked with other compounds in the traditional sense. It is a supportive addition to anabolic protocols rather than a performance compound in itself. It appears alongside virtually any anabolic stack as a maintenance tool for testicular function. During PCT it is typically used in the initial phase before transitioning to SERMs, because...
HCG at higher doses stimulates testicular aromatase, which can produce a significant estrogen spike that causes gynecomastia even when overall androgen levels are managed. The receptor desensitization that can occur with chronic high-dose HCG use is one of the more consequential and underappreciated...