What is Supertest 450 (Testosterone Phenylpropionate 73mg + Testosterone Acetate 32mg + Testosterone Decanoate 147mg + Testosterone Propionate 73mg + Testosterone Cypionate 125mg)?
Supertest 450 is a five-ester testosterone preparation at 450mg/mL incorporating Testosterone Acetate 32mg/mL (ultra-fast, ~1–2 days), Testosterone Propionate 73mg/mL (fast, ~3 days), Testosterone Phenylpropionate 73mg/mL (short-medium, ~4–5 days), Testosterone Cypionate 125mg/mL (medium-long, ~8–10 days), and Testosterone Decanoate 147mg/mL (long-acting, ~14–16 days). Five distinct esters provide the broadest possible temporal coverage of testosterone release kinetics in a single injection. Research use only.
Research Applications
Five-Phase Testosterone Pharmacokinetics
Ultra-rapid acetate through long-acting decanoate — full temporal serum testosterone mapping in a single dose
Testosterone Cypionate Contribution
Cypionate ester pharmacokinetics characterisation — medium-long peak, plateau, and half-life within a multi-ester context
Ester Diversity Studies
Most complex multi-ester testosterone formulation — comparative release kinetics across 5 ester chain lengths
HPG Axis Suppression Dynamics
Sustained multi-peak LH/FSH suppression with five-ester temporal testosterone delivery
High-Concentration Volume Research
450mg/mL injection site bioavailability, tolerability, and depot formation studies
Quick Specs
| Form | TestPP C₂₈H₃₆O₃ + TestAce C₂₁H₃₀O₃ + TestD C₂₉H₄₄O |
| Purity | ≥99% by HPLC — every batch |
| CAS Number | 57-85-2 / 1255-49-8 / 58-20-8 / 5721-91-5 / 1045-6 |
| Molecular Weight | MS confirmed — every batch |
| Specification | ≥99% by HPLC — every batch |
| Shelf Life | 24 months (unopened) |
| Storage | Room temperature 15–25°C | Protect from light | Do not freeze |
| Brand | China |