• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer
  • Steroid Profiles
  • Steroid Articles
    • Contributors
  • Steroid Forum
MESO-Rx

MESO-Rx

Anabolic Steroids

  • Anabolic Steroids
    • Anadrol
    • Anavar
    • Deca Durabolin
    • Dianabol
    • Equipoise
    • Masteron
    • Oral Turinabol
    • Primobolan Depot
    • Sustanon 250
    • Testosterone
    • Trenbolone Acetate
    • Winstrol Depot
  • hGH & Peptides
    • CJC-1295
    • GHRP-6
    • hGH
    • hCG
    • IGF-1
    • Melanotan II
    • MGF
    • Mod GRF 1-29
    • TB-500
  • Anti-Estrogens
    • Arimidex
    • Aromasin
    • Clomid
    • Letrozole
    • Nolvadex
  • Fat Loss
    • AICAR
    • Albuterol
    • Clenbuterol
    • DNP
    • Ephedrine
    • T3
    • Telmisartan
You are here: Home / Anabolic Steroids and Performance-Enhancing Drugs / Equipoise (Boldenone Undecylenate)

Equipoise (Boldenone Undecylenate)

Boldenone undecylenate (Geneza Pharma)

Equipoise (boldenone undecylenate) is historically a veterinary steroid but for some time has been available as an UGL human preparation as well.

In the past, the principal reason for Equipoise’s use was it’s easy availability as a Mexican veterinary product. Presently, for the most part there is little specific reason to use Equipoise in an anabolic steroid cycle. There is nothing that it does anabolically that Masteron, Primobolan, Deca, or trenbolone will not do. In terms of side effects, likewise it has no advantage over Masteron or Primobolan, unless one desires the occasional side effect of increased appetite, or the side effect of its moderate conversion to estrogen. This can be useful if no other aromatizing steroid is being used.

Effectiveness of Equipoise

This is not intended to disparage the compound: it certainly can be put to good use in a steroid cycle. Its potency (effect per milligram) is comparable to most other injectable steroids, though less than that of trenbolone, and so for example addition of 400 mg/week is a substantial boost to most cycles. Alternately, if substituting boldenone for another injectable this can be done on a milligram-for-milligram basis.

Half-Life of Equipoise

A serious drawback of Equipoise is its long half-life, which is probably at least 12 days. This results in an extended period of time after the last injection during which levels are neither sufficiently high for optimal anabolism, nor low enough to allow recovery to occur. A solution for this problem is to use Equipoise in only the earlier part of a cycle.

Frontloading Equipoise

Another effect of the long half-life is that to achieve reasonably prompt effect, a large frontload is needed. I recommend that the first injection be an amount equal to 1.7 – 1.8 times the amount that will be used per week, plus the amount of the usual injection. So if for example the ongoing dosing will be 200 mg twice per week, on the first day the frontload should be about 900 mg.

Most do not do this, and as a result they experience little effect from Equipoise until many weeks into the cycle. For this reason, it’s widely claimed that Equipoise cycles need to be long or otherwise they do not work, but this really is not so. Instead the problem is failure to frontload, or failure to fronload sufficiently.

Another solution is to use the propionate ester, which now has some limited availability in powder form.

Equipoise Side Effects

Boldenone is metabolized by aromatase to estradiol, but to a lesser a degree than testosterone. It also is metabolized by the 5-AR enzyme, in this case to 17b-hydroxyandrost-1-ene-3-one, commonly but incorrectly called “1-testosterone” and sometimes called dihydroboldenone. This molecule’s potency is similar to that of boldenone, so the molecule is neither potentiated or deactivated by the 5-AR enzyme and therefore that metabolism is unimportant.

Stacking Equipoise with Other Steroids

Boldenone might be used in a couple of interesting ways, for example in combination with trenbolone to allow a lower dose of trenbolone while retaining similar anabolic effect and providing a needed amount of aromatizing steroid. It might also combined with Masteron or Primobolan, instead of testosterone, in self-prescribed HRT. The advantage would be reduced production of DHT. However, these uses have yet to be much explored.

But in general, for most Equipoise is not a first-call anabolic steroid. Not for reason of any real lacks, but simply because there are other choices that generally will work as well for the overall cycle plan.

SP Labs Equipoise
Boldenone undecylenate is the chemical name of the active ingredient in Equipoise. Equipoise is a registered trademark of Wyeth Holdings Corporation in the United States and/or other countries.

About the author

Bill Roberts
Medicinal chemist

Bill Roberts is an internationally-recognized expert on anabolic steroids and performance-enhancing drugs (PEDs). He received a bachelor degree in Microbiology and Cell Science and completed the educational and research requirements for a PhD in Medicinal Chemistry at a major American university.

Bill entered the nutritional supplement industry prior to completing his doctoral thesis but his education was invaluable so far as being able to design/improve nutritional supplement compounds, since it was in the field of designing drug molecules and secondarily some work in transdermal delivery.

His education was not specifically "geared" toward anabolic steroids other than expertise with pharmacological principles having broad applications. This has allowed Bill to provide unique insight into the field of anabolic pharmacology with knowledge of points which he would not have known otherwise.

Primary Sidebar

Sponsors

Popular Articles

androgen receptors

Androgen Receptor Regulation

One of the most common beliefs concerning anabolic-androgenic steroid (AAS) usage is that the androgen receptor (AR) downregulates as a result of such usage. This has been claimed repeatedly in many books and … [Read More...] about Androgen Receptor Regulation

The New York Times and the Russian doping scandal

How the New York Times Shaped Public Perception of the Russian Doping Scandal

Introduction As we’ve already touched on in the first part of this article series, the Russian doping scandal rocked the world of sports, revealing a sophisticated state-sponsored program that calls the integrity … [Read More...] about How the New York Times Shaped Public Perception of the Russian Doping Scandal

Rick Collins, attorney at Collins, McDonald & Gann specializing in steroid law and dietary supplement law

Insider’s Update on the Regulatory Issues Surrounding Sports Supplements

There was a 22-year-old aspiring bodybuilder who claimed that he used creatine monohydrate at recommended doses for three and a half months. What happened to him? Well, here’s how journalists presented the case in … [Read More...] about Insider’s Update on the Regulatory Issues Surrounding Sports Supplements

Nutropin Depot - human growth hormone (hGH)

Ask Dave Palumbo #5

Subject: Pre-Mixed GH from Genetech? Dear Dave, I came across some "premixed GH" from Genetech that had "no label" and a "blue" top. Are they legit? There is quite a decent number of unlabelled growth hormone … [Read More...] about Ask Dave Palumbo #5

sperm production and anabolic steroids

Anabolic Steroids and Fertility

Anabolic steroids don’t only affect the endogenous testosterone production, but also sperm production—a process called spermatogenesis. In this article I will walk you through how spermatogenesis works, how anabolic … [Read More...] about Anabolic Steroids and Fertility

Footer

MESO-Rx International

MESO-Rx articles are also available in the following languages:

Deutsch, English, Español, Français, Português, Русский

Questions? Comments?

Use the following link to send us an e-mail. We will respond as soon as we can.

Contact us.

Search

Copyright © 1997–2025 MESO-Rx. All rights reserved. Disclaimer.