Boldenone Undecylenate (Equipoise)
What Is Boldenone Undecylenate?
Boldenone undecylenate (brand name Equipoise, commonly “EQ”) is an injectable anabolic-androgenic steroid (AAS) derived from testosterone with adouble bond between carbons 1 and 2 — the same structural modification that differentiates boldenone from testosterone.This modificationreduces aromatization to approximately 50% of testosterone, producing amild, steady, and estrogenically manageable anabolic effect.Boldenone undecylenate is characterized by itsvery long undecylenate ester, giving it anextremely slow release and a long elimination half-life of ~14 days.It is known for producinglean, quality, steady gains withminimal water retention, significant appetite stimulation, and increased erythropoiesis (red blood cell production).
- Injectable testosterone derivative — 1,2-double bond modification
- Anabolic rating: ~100 / Androgenic rating: ~50
- Undecylenate ester — very long-acting; half-life ~14 days
- Aromatization: ~50% of testosterone rate — mild estrogenic activity
- Significant erythropoiesis stimulation — increases RBC count and hematocrit
- Pronounced appetite stimulation — hallmark effect for bulking
- Oil-based intramuscular injection
Boldenone undecylenate is used in research contexts forlean, steady mass gain during prolonged bulking cycles, appetite stimulation for those struggling to eat sufficient calories, and as a mild, well-tolerated injectable AAS with a favorable side effect profile.Itsvery long half-life necessitates extended cycle durations (12-20+ weeks) for full effect.
