Trenbolone Hexahydrobenzylcarbonate
Parabolan · Tren Hex
Half-life
6 days
Time to Peak
3 days
Steady State
~30 days
Bioavailability
100%
Dose Range
76.5–304 mg
Frequency
Weekly
Overview
Long-acting trenbolone ester with the largest ester group. The ONLY trenbolone compound to ever receive human pharmaceutical approval — manufactured by Negma Laboratories (France) as Parabolan (76.5 mg/1.5mL). Discontinued in 1997. The hexahydrobenzylcarbonate (hex) ester is larger than enanthate, producing slower release and longer duration of action. Harm reduction: Same significant health risks as all trenbolone compounds. The very long ester means extended clearance time — plan accordingly for PCT timing and blood work scheduling.
Mechanism of Action
19-nor steroid with 9,11-double bond. Hexahydrobenzylcarbonate ester (large cyclic ester) for extended depot release. Same parent compound as other trenbolone esters.
Dosing Information
| Route | Dose Range | Half-life | Tmax | Frequency |
|---|---|---|---|---|
| Intramuscular (IM) | 76.5–304 mg | 6 days | 3 days | Weekly, Every 2 weeks |
Storage & Handling
Room temperature — Oil-based injectable. Originally Negma Parabolan (discontinued 1997); now UGL only.
Used in Regimens
Trenbolone Hexahydrobenzylcarbonate is not currently part of any catalog regimen.
Data Sources
- Community Negma Laboratories (France) — Parabolan product data
Related Tools
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