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Anabolic Androgenic Steroids

EQUIPOISE (BOLDENONE)

A long-acting, “mild” anabolic steroid (originally veterinary) known for steady lean gains, increased appetite, and a big boost in red blood cells (endurance). Very long ester, takes weeks to kick in, so cycles run long. An anabolic steroid (oil), not a peptide.

Research referenceCommunity compiled
Research & reference information

This profile compiles research and community-sourced reference information for educational purposes. Information may evolve as research and community knowledge develop. It is not individualized medical advice.

Overview

A long-acting, “mild” anabolic steroid (originally veterinary) known for steady lean gains, increased appetite, and a big boost in red blood cells (endurance).

Very long ester, takes weeks to kick in, so cycles run long.

An anabolic steroid (oil), not a peptide.

What It Does

Boldenone undecylenate (Equipoise / EQ) is a testosterone derivative with a very long ester (~14-day half-life).

It gives slow, quality lean-mass gains, marked appetite increase, and a strong rise in red blood cells (improved oxygen carrying/endurance).

Aromatizes roughly half as much as testosterone.

Always run alongside a base testosterone (it suppresses natural production).

Presentation

VialFormConcentrationNote
10 mLOil solution (no reconstitution)250 mg/mL0.1 mL = 25 mg. Very long ester, effects build over weeks.

Protocol

PhaseFrequencyAmountNotes
Cycle1–2×/week300–600 mg/week~300 mg/week is the floor to feel it. Run with a base testosterone.
Duration––16+ weeks, the long ester needs a long cycle to show full effect.
Cycle & Timing

16+ weeks (long ester); pair with test. RBC: the standout effect, hematocrit can climb significantly; monitor and donate blood if needed. Note: controlled substance; suppresses natural testosterone, needs a base test and a PCT/recovery plan.

Population Considerations

The long ester makes virilization especially dangerous, side effects persist for weeks and are hard to reverse. High virilization risk at any meaningful dose; generally avoided. Men: Slow-acting; notably raises red cells, watch hematocrit closely (donate blood if needed). Mild aromatization (monitor estradiol). Very long detection win The long ester makes virilization especially dangerous, side effects persist for weeks and are hard to reverse. High virilization risk at any meaningful dose; generally avoided. Men: Slow-acting; notably raises red cells, watch hematocrit closely (donate blood if needed). Mild aromatization (monitor estradiol). Very long detection window.

Handling & Stacking

Injection site
IM. Rotate. Sterile technique.
Storage
Room temp, dark. Warm to clear if cold-clouded.
Side effects
Elevated hematocrit (the big one), increased appetite, mild estrogen rise, acne, hair loss (if predisposed), anxiety in some users. Generally fewer estrogenic sides than test.
What to expect
  • Slow, steady lean gains, better pumps/endurance, and appetite over a long cycle.
  • Not a dramatic mass builder, a quality/conditioning compound.
  • Supply math 10mL → ~4 weeks at 600 mg/wk, a 16-week cycle needs ~4 vials
Pairs well with
Testosterone (mandatory base); not with Trenbolone unless experienced (additive cardiovascular/RBC strain)
Avoid
High baseline hematocrit / polycythemia. Cardiovascular disease. Anxiety disorders (can worsen). Prostate/breast cancer. Pregnancy exposure

Safety & Patient Education

Contraindications
Polycythemia / elevated hematocrit (EQ raises RBC strongly) Cardiovascular disease Prostate or breast cancer Pregnancy (partner exposure)
Warnings
Pronounced high red-blood-cell count, clot/stroke risk; monitor hematocrit, may need blood donation HPTA suppression, requires a base testosterone and a recovery plan Adverse lipids and cardiovascular strain Anxiety/restlessness reported by some users Very long detection time and slow clearance
Drug interactions
Anticoagulants: bleeding/clotting balance altered, monitor Other RBC-raising agents: compounded polycythemia risk
Labs
  • CBC (hematocrit), especially important with EQ Lipids, estradiol, testosterone, PSA (age-appropriate), liver enzymes Blood pressure Out of range?
  • Hematocrit >54% = blood too thick (donate or hold); high estradiol = manage it; a rising PSA = get the prostate checked.
Stop criteria
Hematocrit >54% (or per clinician) Chest pain, severe headache, neurologic/vision changes Severe anxiety or cardiovascular symptoms
Patient education
Controlled steroid, run with a base testosterone, not solo Watch hematocrit closely, EQ’s signature risk is thick blood Long ester, be patient; cycles run 16+ weeks Have a recovery/PCT plan
References
researchdosing · PubMed · rxlist