Testosterone Decanoate
Sustanon 250 component
Half-life
14 days
Time to Peak
2.5 days
Steady State
~70 days
Bioavailability
100%
Dose Range
50–200 mg
Frequency
Weekly
Overview
Long-acting testosterone ester with 10-carbon straight chain. Largest component (100mg) in Sustanon 250. Highly lipophilic, providing very slow release. Not to be confused with undecanoate (11-carbon).
Mechanism of Action
Depot injection releases testosterone via ester hydrolysis. High lipophilicity of the decanoate ester produces very slow release from the oil depot.
Dosing Information
| Route | Dose Range | Half-life | Tmax | Frequency |
|---|---|---|---|---|
| Intramuscular (IM) | 50–200 mg | 14 days | 2.5 days | Weekly, Every 2 weeks |
Storage & Handling
room_temperature — Store at 20-25C (68-77F). Protect from light.
Used in Regimens
Testosterone Decanoate is not currently part of any catalog regimen.
Data Sources
- ester analogy Behre & Nieschlag 1998 — Ester PK Estimates
Related Tools
Track Testosterone Decanoate with Doseline
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