Testosterone propionate (TP) is a prodrug of testosterone (T) and is an androgen and anabolic-androgenic steroid. That is, it is an agonist of the androgen receptor. TP one of the shortest ester of testosterone. If you need to make high concentration of “T” in your blood quickly, it’s your choice. Professional athletes use TP before competitions and PCT. Also boxers and MMA fighters can use it before, to increase their endurance and strength. 10 ml multiple use vial