Tri-Ester Test 400 - Pharmacom Labs

A tri-ester testosterone formulation like this reflects decades of testosterone research and market evolution. Enanthate, introduced in Europe in the 1950s, became the global standard. Cypionate followed in the U.S. via Upjohn’s Depo-Testosterone, offering near-identical kinetics with minor comfort differences. Decanoate appeared in longer-acting blends such as Sustanon, originally crafted by Organon. These esters together ensure layered, sustained androgenic effect over weeks.

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