Boldenone Undecylenate
Equipoise (EQ). Very long ester. Known for endurance and lean mass.
Overview
Equipoise (EQ). Very long ester. Known for endurance and lean mass.
Significant increase in haematocrit/haemoglobin (more than most AAS), moderate lipid impact, can lower estradiol in some individuals (acts as mild AI), long detection time
Compound Guide
Ester: Undecylenate -- 11-carbon chain ester. Extremely long half-life resulting in very slow saturation (6-8 weeks to reach stable levels) and prolonged clearance.
Dosage:
- Enhancement: 400-800 mg/week for 16-20 weeks (needs long cycles due to slow saturation)
- No TRT application
Injection Protocol:
- Inject 1-2x/week IM
- 25g needle, 1-1.5 inch, glutes/VG
Key Notes:
- Takes 6-8 weeks to fully saturate -- patience required; some front-load
- Most notorious compound for raising haematocrit/haemoglobin -- monitor CBC regularly and donate blood if HCT exceeds 0.52
- Can act as a mild AI: some users experience crashed E2 at high doses, especially with a low Test base
- Run Test at equal or higher dose than EQ to avoid low-E2 symptoms
- Very long detection time -- plan PCT well in advance (stop EQ 4-6 weeks before last Test injection)
- Increases appetite and vascularity; milder sides than Tren or Deca
EQ suppresses oestradiol on its own, which catches people out when they add an AI on top: Why boldenone crashes your E2 and how to fix it.
Usage History
Markers to Monitor
Pairs With
How Boldenone Undecylenate behaves when it is run alongside other compounds.
Used to offset
Stacks the risk
Marker Interactions
Frequently Asked Questions
Related Articles
How to Lower Blood Pressure on Cycle With Telmisartan and Nebivolol
Evidence-based guide to managing high blood pressure on cycle. Telmisartan, nebivolol, ARBs, dosing, monitoring labs, and a decision tree by BP range.
T:E2 Ratio Guide: Decision Tree, Dose Scenarios & AI Thresholds
How to read your testosterone to estradiol ratio on TRT or cycle. Dose-specific bands, the AI decision tree, the ratio trap, unit conversion for AU/UK labs.
EQ and Estrogen: Why Boldenone Crashes Your E2 (and How to Fix It)
Boldenone's hidden AI effect explained. Test-to-EQ ratios, crashed estrogen symptoms, bloodwork protocols, and how to fix low E2 on an EQ cycle.
How to Lower Hematocrit on TRT Without Blood Donation
Tiered protocol for managing high hematocrit on TRT. Strategies for 50-52%, 52-54%, and 54%+ levels: naringin, microdosing, hydration, and when to escalate.
Quick Reference
Category
AAS
Half-Life
14 days
Detection Time
5+ months