Test Suspension (100mg/mL) is a strategically blended testosterone formulation that combines multiple esters to simulate both immediate and sustained androgen release profiles in preclinical models. The composition includes fast-acting Propionate and medium- to long-acting Isocaproate, Phenylpropionate, and Decanoate esters for layered hormone kinetics.

This design allows researchers to examine multi-phase testosterone release and metabolism, offering valuable insights into fluctuating hormonal responses over time. It is frequently used in studies focusing on hormonal equilibrium, receptor binding variability, and pharmacodynamic modeling. Apextra Labs’ formulation includes 12mg Propionate, 24mg Isocaproate, 24mg Phenylpropionate, and 40mg Decanoate per mL, all suspended in a sterile carrier oil.

Format: Sterile oil-based injectable solution, 100mg/mL
Purity: ≥99% (HPLC-verified)
Components: Testosterone Propionate (12mg), Isocaproate (24mg), Phenylpropionate (24mg), Decanoate (40mg)
Storage Recommendations: Store at 15°C–25°C; protect from light
Intended Research Use: Multi-phase androgen pharmacokinetics, receptor saturation models, hormone-release timing studies
For Research Use Only. Not for human consumption.