Equipoise (Boldenone Undecylenate) Report

Equipoise is the trade name which Boldenone Undecylenate, a veterinary injectable steroidal drug is popularly known by. This Equipoise derived testosterone exhibits powerful anabolic and mild androgenic traits.  When it comes to side effects, Equipoise is very anabolic and slightly androgenic. It is known to facilitate a solid and continuous improvement in muscle mass as well as strength needed for bodybuilding, and that is why it enjoys much popularity among bodybuilders. When Equipoise is combined with other steroids, it provides amazing results. Nowadays, it has become popular among athletes and many of them consider it to be the ideal substitute for Deca-Durabolin.


The name Equipoise was given to Boldenone Undecylenate by Squibb in the 1970s. Equipoise is formally categorized as a veterinarian grade anabolic steroid despite the fact that the initial consignments of Boldenone were actually introduced on the human grade pharmaceutical market in the early 1950s by Ciba under the brand name Parenabol. It had some success in human medicine during the 1960s and 70s, only for its production to be finally stopped by the close of the decade.  Since then, Boldenone has only been obtainable through veterinarian medicine as well as underground labs. The name Equipoise, which is now owned by Fort Dodge Animal Health, has been dominating the market.

For several decades, Equipoise was assumed to be very similar to Deca Durabolin (Nandrolone Decanoate). The late Dan Duchaine made some comments about the steroid, which partly led to this assumption. But in reality, the two compounds do not share any similarities in any way. As a matter of fact, Duchaine would retract the statement, though the initial statement has been sufficient in keeping this rumor alive.  Equipoise is actually unique in its own right, and if there is anything it has in common with any other anabolic steroidal hormone, it is testosterone. Nandrolone and Boldenone differ in that while Nandrolone has a strong progestin nature, Boldenone does not carry any progestin traits.

Equipoise Functions and Characteristics


Equipoise is a structurally transformed form of testosterone.  It is an extremely mild change in an added double bond at the carbon 1 and carbon 2 positions, which significantly reduces both the hormone’s androgenicity and estrogenic nature.  It then binds to the very large/long ester known as Undecylenate ester.  This ester is the one that controls the release of hormone when it is administered into the body. It facilitates the peak release in Boldenone about 3-4 days following injection and a slow steady release of hormones follow for around 21 days.

Equipoise only aromatizes at about a half the rate of testosterone due to its structural change. Estrogenic side effects are likely, although the odds are highly in the user’s favor when compared to testosterone. Even though it is not a potent mass builder as testosterone, or even close to it, the lessened estrogenic activity should enable the user to make cleaner gains via supplementation.

Equipoise and testosterone share numerous similarities regarding direct improvement properties. Some of the common shared properties include the ability of Equipoise to increase protein synthesis, retain nitrogen in the muscles, inhibit glucocorticoid hormones, as well as augment IGF-1 production.  In addition, the steroid is well known for its ability to increase red blood count, an attribute that is shared by all anabolic steroids.

But on the other hand, there have been concerns regarding how much Equipoise can augment red blood cell count. However, according to the available data, this is only a concern where very high dose is used for prolonged periods of time.

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