Trenbolone Side Effects : Complete List Of Dangers & Side Effects

Trenbolone is a steroid that has anabolic and androgenic effects. It is a very powerful steroid to build muscle mass and mainly used for that purpose. The trenbolone side effects can be dangerous and nasty such as high blood pressure, severe acne, hair loss and gyno.

Here’s how trenbolone works.

This steroid increases protein synthesis and reduces the rate of catabolism, which results in faster muscle growth and less muscle breakdown.

trenbolone side effects

Trenbolone can also increase male sex characteristics such as:

  • Hair growth
  • Reduced body fat
  • Broadening of shoulders and chest.
  • Strength
  • Lean muscle mass
  • Small waist

First and foremost it is used by bodybuilders because it is very fast acting and effective to gain muscle mass, strength, lose body fat and get vascular.

It is one of the most powerful steroids available and it is not recommended for beginners to use such a potent drug.

For instance trenbolone has a binding affinity of androgenic receptors five times faster than normal testosterone, which obviously proves how efficient it is.

Here’s the deal:

Tren steroid results for muscle building are insane, you can see what results to expect by using trenbolone here.


Trenbolone is not designed for use in humans like testosterone and which makes the trenbolone side effects list more serious and longer.

Here’s what most people don’t know

There are different types of trenbolone formulas that bodybuilders use.

To explain this briefly I will tell you about 3 very common trenbolone compounds.

Perhaps the most popular one Trenbolone acetate has a short acting ester which means the effects only last a short period of time and frequent use is necessary.

Trenbolone hexahydrobenzylcarbonate (Parabolan) has a longer lasting effect and a dose of it can last up to two weeks.

Trenbolone enanthate works similarly to parabolan but has a different ester.

The bottom line?

All these compounds have the same muscle building effects but the difference is mostly how long the effects last in your body.

trenbolone side effects

Trenbolone chemical structure

The trenbolone side effects can be harmful and dangerous.

However there is now a supplement available that is a legal trenbolone alternative and comes with no side effects.

We will discuss that supplement later on in this article.

Trenbolone Side effects and dangers

It is definitely more likely to experience side effects of Trenbolone if it’s used irresponsibly and an high doses.

However users using a low dose have also reported serious side effects of using tren.

Here’s the deal:

You cannot really say how bad the trenbolone side effects will affect you, we all respond to this drug differently.

Trenbolone is an extremely powerful drug and most of the times people experience some nasty and even harmful side effects when using it.

Here are the most common trenbolone side effects:

  • Hypertenison (high blood pressure)

Trenbolone raises the blood pressure and it can be extremely dangerous.


Even when using a very low dosage of trenbolone you should monitor your blood pressure at all times, high blood pressure can be extremely dangerous and harmful to your health.

For a short period of time high blood pressure does usually not cause problems, however if you have high blood pressure for a long period of time you are at risk for many harmful things to happen to you.

These include heart failure, stroke, chronic kidney disease and vision loss.

It is recommended to stay away from the drug entirely if you already have a high blood pressure problem.

  • Gynecomastia

Trenbolone can cause a buildup of estrogen in your body.

Estrogen is a hormone which developes female characteristics in the body.

This is bad:

By taking trenbolone you are at risk for getting a gyno which is often referred to as “bitch tits”.

This is especially a concern for those who are already sensitive to a gyno.

Here’s what most people do not realise:

Many people tend to believe that gyno is not a risk because trenbolone does not aromatize (does not convert into estrogen).

The bottom line?

Even though trenbolone by itself does not raise your estrogen levels it could cause a buildup of estrogen which may result in a gyno.

  • Severe Acne

Most users get disgusting acne while using trenbolone, this is one of the most common side effects.

Just imagine someone with a lot of acne on his face and body this is very common amongst trenbolone users, especially those who are sensitive to acne breakout.

Here’s what to keep in mind:

If you already have an acne problem you are definitely at more risk of getting severe acne all over your body especially on your back and face.

  • Hair Loss

Trenbolone can speed up hair loss.

Men who are predisposed to hair loss are extremely sensitive to hair loss while using tren.

Here’s the deal:

While there is not so much you can do to avoid this side effects men who have male pattern baldness will definitely lose their hair faster using trenbolone.

So to sum it up: if you already were going to lose your hair at some point, trenbolone will speed that process up.

  • Insomnia

You may experience sleeping difficulties while taking trenbolone.

  • Rapid heart rate

Rapid heart rate could be dangerous and it is very uncomfortable as you can imagine.

  • Anxiety

If you ever had anxiety you know how distressing it can be.

Trenbolone can cause massive anxiety you would not wish on your worst enemy.

  • Night sweats

One of the side effects of trenbolone are night sweats, if you use trenbolone you have to prepare waking up in the morning soaking wet.

  • Tren couch

When using trenbolone you may experience a severe cough which happens straight after using it.

This could last up to 90 seconds and happens mostly when trenbolone acetate is used.

However, the cough goes away pretty quickly after injection but is very painful and uncomfortable.

  • Dark coloured urine

The cause of dark coloured urine is in most cases because of dehydration.

It is recommended to drink a lot of water while using trenbolone

  • Aggression and anger

Just like with all steroids when you get an increase in male hormones that can lead to more aggression.

This does not necessarily mean that you will not have any control over your actions.


This has been a problem for some users who simply cannot control their aggression.

However if you are a relaxed person in good mood this may not affect your behaviour that much, even though you will definitely be more aggressive.

  • Decreased cardio endurance

Trenbolone can make you feel out of breath and decrease cardiovascual endurance.

These effects usually subside once you stop taking the drug.

  • Low sex drive

Your sex drive may suffer severely when taking tren or after taking it.

This is common after a tren cycle where your testosterone and sex hormone levels could have been altered.

  • Increase in catabolism

Catabolism is the process when your body breaks down muscle mass(it is the opposite of anabolic).

After a tren cycle your catabolism becomes significantly higher and you are at risk for losing lean muscle mass.

These trenbolone side effects have been reported but are not guaranteed.

Tren Supplement Without Side Effects – Trenorol

trenbolone side effects

We are extremely lucky to live in 2017.

You may asking “why?”

It is because premium supplement companies have now been able to use science to formulate natural and safe supplements that mimic the effects of trenbolone.

The best part?

These trenbolone alternatives come with no side effects, work very well and are 100% legal.

Here’s the deal:

One product in particular caught our attention and it is the supplement Trenorol by crazybulk.

Trenorol is formulated with natural and powerful ingredients that work to build muscle mass, decrease fat and get more vascular.

Trenorol has become very popular amongst natural bodybuilders who want to build muscle mass without risking their health.

Users of Trenorol describe it as the “closest supplement to actual trenbolone” 

It gets even better:

Also you will not lose your hard earned muscle once you stop taking trenorol, which is what happens when you stop taking the steroid trenbolone.

You will experience enhanced muscle growth, drop in body fat and more visible veins without the nasty side effects.

Trenorol results have been reported from several websites and users generally see results in enhanced muscle mass and fat loss within 30 days of use.

Trenorol By CrazyBulk

The supplement Trenorol is our favourite trenbolone alternative because it is very safe and works fast to build muscle.


  • Increases muscle growth
  • Speeds fat loss
  • More vascularity (less water retention)
  • Performance enhancement
  • More strength
  • Buy 2 get 1 for free offer
  • Free worldwide shipping


  • Can only be bought straight from Crazybulk official website
  • Premium priced product

Additional info:

  1. Visit Crazybulks official website to buy trenorol =>CrazyBulk official website
  2. Read our complete trenorol review => Trenorol Review

Refrences and scientific studies

“Improvements in body composition, cardiometabolic risk factors and insulin sensitivity with trenbolone in normogonadic rats”

“A Young Man with Myocardial Infarction due to Trenbolone Acetate; a Case Report”

Author: James / Founder of BroScience

I started this site back in 2014 because I was tired of the fitness industry telling guys like me lies.

Getting ripped doesn't have to be so hard... I'm here to give you the truth! The no bullsh*t advice.

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