Trenbolone Acetate
Finaplix · Tren A
Half-life
2 days
Time to Peak
24 hr
Steady State
~10 days
Bioavailability
100%
Dose Range
25–100 mg
Frequency
Daily
Overview
Short-acting trenbolone ester. No human pharmaceutical product has ever been approved. Originally a veterinary cattle implant (Finaplix-H pellets) converted to injectable form by underground labs. Extremely potent — estimated 5x testosterone's anabolic and androgenic activity. Harm reduction: Trenbolone carries significant health risks. Common side effects include insomnia, night sweats, elevated heart rate, cardiovascular stress, increased blood pressure, and mental health effects (anxiety, irritability, paranoia). Strongly suppresses endogenous testosterone. Does NOT aromatize to estrogen but has strong progestogenic activity. Monitor: Full lipid panel (trenbolone devastates HDL), liver enzymes, kidney function (unique dark-colored urine metabolites), hematocrit, and blood pressure.
Mechanism of Action
19-nor steroid with additional 9,11-double bond creating extreme receptor binding affinity. Does not aromatize. Strong progestogenic activity. 5x anabolic/androgenic ratio vs testosterone. Not a substrate for 5-alpha reductase — equally potent in all tissues.
Dosing Information
| Route | Dose Range | Half-life | Tmax | Frequency |
|---|---|---|---|---|
| Intramuscular (IM) | 25–100 mg | 2 days | 24 hr | Daily, Every other day |
Storage & Handling
Room temperature — Oil-based injectable (UGL). Originally cattle implant pellets.
Used in Regimens
1 regimenData Sources
- animal data Cattle implant pharmacokinetic data (Finaplix-H)
- Community r/steroids wiki and community dosing protocols
Related Tools
Track Trenbolone Acetate with Doseline
Reminders, medication level charts, injection site rotation, and protocol tracking — all free, all private.
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