Also known as
Test P
Test P is a common alias for Testosterone Propionate, an injectable anabolic-androgenic steroid. It refers to the same short-ester testosterone compound, with no structural or functional differences between brands. At PoseidonRX, two products are sold under this name: one from Prime and one from Magnus. Both contain 250 mg of Testosterone Propionate per 10 ml vial.
Compound Identity
The alias "Test P" points directly to the short-ester form of testosterone. This specific propionate ester is what defines its pharmacokinetic profile, distinguishing it from other testosterone esters. The compound is a standard anabolic steroid with no additional functional groups or modifications beyond the propionate chain attached to the D-ring.
Product Options
PoseidonRX carries two distinct products under this alias. The first is from Prime, and the second is from Magnus. Both are 10 ml vials containing 250 mg of Testosterone Propionate. There are no differences in dosage form or strength between them; the only distinction is the manufacturer. Buyers should select based on their preference for these specific brands.
Active ingredient
Testosterone Propionate
Anabolic Steroid (Injectable)
Questions & answers
What is the difference between Test P and other testosterone forms?
Test P refers specifically to testosterone propionate. The short ester length results in a faster rate of absorption and elimination compared to longer esters, which requires more frequent dosing.
Are there any differences between the Prime and Magnus products?
No. Both products contain 250 mg of Testosterone Propionate per 10 ml vial. The only difference is that one is manufactured by Prime and the other by Magnus.
How often should this compound be dosed?
Due to its short ester, it has a brief duration of action. This necessitates daily or every-other-day injections to maintain stable blood levels in typical user protocols.