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Trenbolone and Equipoise Cycle

Trenbolone, the most famous steroid for amazing gains, meets Equipoise, the most misunderstood steroid. In this article, we'll be going over the facts on how and why you need to stack Tren and EQ; in addition, we'll cover the fine points of bulking vs. cutting cycles.

Table of Contents


What is Trenbolone?

In the bodybuilding world, trenbolone, or tren, is often considered one of, if not the most, powerful anabolic steroid. Having an anabolic rating of 500 with an androgenic rating of 100, tren really shows its power on paper when compared to the baseline hormone Testosterone.  Testosterone only exhibits a 1[00:10]0 anabolic/androgenic ratio.

Trenbolone belongs to a class of 19-nor steroids, which means its chemical structure has been altered to create a new compound. Interestingly, Tren was originally designed for cattle, but it quickly found its home in the bodybuilding community given its amazing anabolic (muscle building) nature and capacity.

trenbolone chemical formula

Fig 1. Trenbolone Chemical Structure

What to expect from Trenbolone?

Given trenbolone's highly anabolic nature, the user will experience a substantial increase in muscle mass and hardening with this compound. Tren has a great ability to increasing IGF-1 levels (Insulin like growth factor-1); in addition, it boosts cellular repair and increases nutrition partitioning effects in humans.

Even in a caloric deficit, trenbolone is extremely efficient at preserving muscle tissue and continuing to build new tissue. As if that wasn't enough, Tren has powerful androgenic qualities, so users can experience great strength gains as well as muscle hardening and fat loss.

Side Effects of Trenbolone

  • Insomnia
  • Night Sweats
  • Mood Swings and aggression
  • Decrease in cardiovascular output and organ function
  • Elevated prolactin levels
  • Lethargy

What is Equipoise?

Equipoise (Boldenone Undecylenate), or EQ, is a veterinarian grade anabolic steroid with a similar molecular structure to testosterone, where a double carbon bond was added to alter its structure. However, its effects are not very similar to testosterone; in fact, EQ was designed to be an injectable form of Dianabol (D-Bol). Regardless, Equipoise is rather unique, as it possesses additional traits of its original counterparts with an anabolic-androgenic ratio of 1[00:50].

Boldenone Undecylenate chemical structure

Fig 2. Equipoise Chemical Structure

What to expect from Equipoise?

Equipoise is often related to Deca Durabolin, but, in fact, it's quite different. EQ is very effective at increasing red blood cell count in the body, which will lead to a great increase in muscular endurance. Red bloods cells carry oxygen and nutrients to all cells in the body including muscle cells.

Boldenone Undecylenate will not provide significant mass or strength gains like trenbolone, but it will allow you to push yourself longer during exercise. Also, it will help preserve muscle tissue when in a caloric deficit, and it will slowly build new muscle tissue. Furthermore, users can expect added vascularity while using this steroid.

Side Effects of Equipoise

  • Increase red blood cell count
  • Increase in appetite
  • Acne
  • Increased heart rate

Stacking Trenbolone and Equipoise

Trenbolone and Equipoise is not a very common stack, but the two compounds can certainly provide a very flexible cycle when ran with a Testosterone base. Whether bulking or cutting, both Tren and EQ will serve to build lean muscle, preserve muscle tissue, and increase muscle strength and endurance.

Depending on the goals of the user, this stack could serve nearly any purpose, especially for adding lean and keepable mass. In addition, this cycle will yield good muscle hardening and vascularity coupled with fat loss.


Although some users desire higher dosages, the general dosage of 400-600mgs/week of Trenbolone (acetate or enanthate) should be sufficient for nearly any user. Generally, EQ is dosed around the 600mgs/week range, but some users claim 800-1000mgs/week will yield the best results.

It's always best to be moderate with your cycles, so 400mgs of trenbolone with 600mgs of equipoise will be more than enough steroids.

Things to consider

Equipoise (Boldenone Undecylenate) is a very long lasting ester, and it can take 4-6 weeks to “kick in.” Thus, the average recommended cycle is a minimum of 12 weeks, but preferably 16 weeks. When stacking tren and EQ, one can expect natural testosterone suppression, so adding a Testosterone ester to this cycle is recommended. An aromatize inhibitor, or AI, such as Arimidex or Aromasin is highly recommended to keep estrogen related side effects to a minimum.

When using trenbolone it is wise to have a prolactin inhibitor, like cabergoline (dostinex), on hand to reduce prolactin related side effects. This is not crucial but can be helpful.

The power of Trenbolone complemented with the flexibility of Equipoise can be an amazing stack if utilized properly.


I will go over 2 sample cycles with you, a bulking and cutting cycle involving Tren and EQ. Bulking will be to gain mass, while cutting will be to lean out.

Bulking Cycle







*Suggested: add Aromasin 12.5mgs/ED

Cutting Cycle







*Suggested: add Aromasin 12.5mgs/ED



Want to read about Tren and EQ on our forums? check out these threads:


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Written by
Mike Snow is an NPC champion with 18 shows under his belt. He took multiple 1st placing at NPC regional bodybuilding shows. He has a diploma from Stanford SCHE exercise and Physiology courses. He holds NASM and ACE personal training certifications and he's working to get his ISSA certification this year.

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