Description
This Hilma Biocare test blend pairs multiple ester lengths for rapid onset plus sustained activity. Excellent base for cycles where injection frequency flexibility matters. Manage estrogen with AI as needed.
Key Benefits
- Ultra-long ester — monthly or twice-monthly pinning at clinical doses
- Castor-oil depot — slow, smooth release over weeks
- Used for TRT in patients averse to weekly injections
- Not common in performance cycles — ester too long for tight control
- Aromatisation same as other testosterone esters
- Each unit dosed at 250 mg — see Recommended Dosage below for protocol-specific intake
Recommended Dosage
Clinical TRT dosing: 1000 mg every 10–14 weeks (Nebido protocol) or every 2 weeks for faster saturation. Performance dosing uncommon — the ultra-long ester makes cycle management difficult.
How It Works
Testosterone esterified to undecanoic acid (11-carbon chain) in castor-oil carrier. The long chain and viscous oil together produce extremely slow depot release. Active hormone identical to other testosterone forms.
Pharmacokinetics
Plasma half-life approximately 20–30 days from the castor-oil depot. Steady-state requires 3–4 injections (10+ weeks). Clearance after stopping also prolonged — PCT timing shifts to 6+ weeks post-last-injection.
Potential Side Effects
Slow onset means side-effects develop gradually rather than spiking. Same core testosterone profile: oestrogenic, androgenic, HPTA suppression. Bloodwork at week 6 and 10 to catch trend drift.
Cycle & Stacking Guide
TRT-oriented. Not generally used for performance due to slow ester kinetics — Test E or C preferred. If cruising on undecanoate, monitor E2 and hematocrit at week 10 after each injection.
Manufacturer Notes
Hilma Biocare operates a Romanian GMP site with dedicated HPLC bays. Their catalogue emphasises clean oil carriers (often MCT or ethyl oleate) to reduce post-injection pain.
Storage & Handling
Store upright at 15–25 °C in the original box, protected from light and moisture. Oil-based injectables are shelf-stable for the duration printed on the vial when kept at controlled room temperature. Do not refrigerate — cold thickens the carrier oil and makes drawing/injecting harder. Keep out of reach of children. For research and educational purposes only.





Reviews
There are no reviews yet.