Boldenone Undecylenate

Equipoise · EQ

Anabolic Steroid aas IM Case Studies / Guidelines

Half-life

14 days

Time to Peak

4 days

Steady State

~70 days

Bioavailability

100%

Dose Range

200–800 mg

Frequency

Weekly

Overview

Very long-acting boldenone ester. Originally a veterinary product for horses (Equipoise). No FDA-approved human formulation exists. One of the most commonly used non-medical AAS. The undecylenate ester (11-carbon, unsaturated) provides very slow, sustained release. Known for increasing red blood cell production (erythropoiesis) and appetite stimulation. Very long detection time (5+ months) due to long-lived metabolites. Harm reduction: Monitor hematocrit closely — boldenone strongly stimulates erythropoiesis. Elevated RBC/hematocrit increases blood viscosity and cardiovascular risk. Consider regular blood donation or therapeutic phlebotomy if hematocrit exceeds 54%.

Mechanism of Action

1-dehydrotestosterone derivative. Binds androgen receptor. Aromatizes to estradiol at roughly 50% the rate of testosterone. Strong erythropoietic effect via EPO stimulation.

Dosing Information

Route Dose Range Half-life Tmax Frequency
Intramuscular (IM) 200–800 mg 14 days 4 days Weekly, Every 2 weeks

Storage & Handling

Room temperature — Store at 20-25C. Protect from light. Oil-based solution.

Used in Regimens

1 regimen

Test/EQ Endurance Cycle

Testosterone enanthate + Boldenone Undecylenate (EQ/Equipoise) cycle favoured by endurance athletes and those seeking lean, quality mass with minimal water retention. EQ increases RBC and appetite. Requires long cycle duration (16+ weeks) due to undecylenate ester half-life.

EQ 400–600mg/week. Front-load first injection at 2x dose.

22wk Harm Reduction aas
Primary

Data Sources

  • animal data Equine pharmacokinetic studies (various)
  • Community SteroidPlotter half-life: 336 hours (14 days)

Related Tools

Medication Level Plotter

See blood level curves for this compound

Dose Calculator

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Split Dose Calculator

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Doseline provides informational tools only. It is not a medical device and does not provide medical advice. Always consult a qualified healthcare provider.

Doseline provides informational tools only. It is not a medical device and does not provide medical advice. Always consult a qualified healthcare provider.