A 2025 review in Nature Reviews Urology describes HCG as a core tool for maintaining spermatogenesis in reproductive-age men on or coming off testosterone (Nat Rev Urol, 2025)
However, it is important to note that these observations come exclusively from animal studies and that safety data in humans remain very limited
intracellular half-life is prolonged because of lysosomal release and cytosolic resequestration, creating a depot effect that supports monthly maintenance dosing for chronic deficiencies
It is essential to weigh the benefits against any potential concerns you may have
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B12 is also an essential component of our Lipo-B12 injections