Testosterone Decanoate — 200 mg/mL (Long-Ester Androgen)
Testosterone Decanoate is a long-chain ester of endogenous testosterone formulated at
200 mg/mL for sustained release and stable serum levels. The decanoate ester provides
a slow hydrolysis profile, making it ideal for research on androgen physiology, muscle protein
synthesis, erythropoiesis, metabolic health, and HPTA dynamics.
Scientific Overview
As the decanoate ester cleaves post-injection, free testosterone binds the
androgen receptor (AR) to up-regulate mTOR signaling, nitrogen retention, and RBC production.
Its extended effective half-life (typically ~7–10 days, oil-based IM) supports studies requiring
steady androgen exposure with fewer administration intervals than short esters.
- Promotes lean mass accrual & strength in research models
- ⚙️ Enhances recovery via increased protein synthesis
- Elevates erythropoiesis (oxygen-carrying capacity)
- Supports favorable nutrient partitioning & body composition
- Explored for mood, vitality, and cognitive-energy correlations
Product Specifications
| Compound | Testosterone Decanoate |
| Concentration | 200 mg/mL |
| Volume | 10 mL sterile multi-dose vial |
| Ester Profile | Long-acting decanoate; effective half-life ~7–10 days (oil-based IM) |
| Carrier Oil | 60/40 Fractionated MCT (C8/C10), low-viscosity, no super-solvents |
| Appearance | Clear, pale-gold solution |
| Purity | ≥ 99% (HPLC) |
| CAS | 5721-91-5 |
⚗️ Pharmacokinetics
Oil-based depot with gradual ester cleavage. Peak testosterone typically within 24–48 hours,
followed by a slow decline over a 1–2 week window, enabling weekly to bi-weekly research
schedules and smoother trough-to-peak ratios versus short esters.
Research Applications
- Androgen receptor & downstream gene-expression studies
- Skeletal muscle hypertrophy and protein-turnover models
- Endocrine replacement & HPTA feedback investigations
- Metabolism, nutrient partitioning, and body-composition assays
- Erythropoiesis and performance physiology research
Synergistic Research Pairings
- Boldenone Undecylenate — endurance, appetite, & vascularity models
- ⚙️ Nandrolone Decanoate — collagen synthesis & joint-support research
- Trenbolone Enanthate — strength & nutrient-partitioning comparisons
- HCG / Kisspeptin-10 — gonadal function & HPTA pathway studies
Handling & Storage
- ️ Multi-dose sterile vial with sealed silicone stopper
- ️ Store at 20–25 °C (68–77 °F); protect from light
- Do not freeze; avoid repeated temperature cycling
⚠️ Disclaimer
For Research Use Only. Not for human consumption, therapeutic, or diagnostic use.
All information is provided for educational and laboratory research by qualified professionals.
Users must be 18+ years old. Manufactured and handled under sterile research-grade conditions.
Accessing or purchasing this item signifies agreement to comply with all applicable research laws and standards.
