What is Trenbolone and is it safe?


Trenbolone is a powerful anabolic androgenic steroid. It was originally developed for beefing up cattle and was a very popular choice for athletes in the 1970s.

Many bodybuilders tend to refer to it as ‘Tren’ and it is a very versatile compound that can be used during the cutting and/or bulking phases, to improve strength. It also enhances muscle hypertrophy and hardness.

Although Tren is a versatile steroid, one question remains, is it safe?

Like any injectable steroid, Tren does come with some severe side effects and these will be discussed throughout this article.

What is Trenbolone?

Trenbolone is a 19-nor class steroid, this equates to a change in the 19th molecule of the testosterone’s structure.

It is this change in structure that gives Tren a power punch in terms of its anabolic and androgenic properties.

SteroidTren is 500 times more anabolic and androgenic than testosterone and this statement should show you how powerful a compound it actually is.

One of the greatest characteristics of Tren is the increase in muscle tissue that is evident after its use.

This has been attributed to Tren’s ability to increase the body’s nutrient efficiency and this simply means that every macro that you consume becomes a whole lot more powerful and effective.

For example if you consume 60 g of protein, with a Tren course the protein you have just consumed will be more than like 240 grams.

Benefits of Trenbolone

Although some research does indicate that Trenbolone has some performance enhancements attached to it, especially if used with testosterone.

Many bodybuilders who use Tren may have huge gains in strength, size and it doesn’t retain water within the muscle. This means that all of the gains are muscle tissue and not water.

These enhanced muscle tissue improvements are mainly permanent too.

Tren will produce far greater strength beyond other additional steroids and this is the reason why many power athletes and competitive body builders use Trenbolone as the steroid of choice.

As well as being used for bulking, Trenbolone is equally powerful in the cutting and leaning out phases. This is because is helps to maintain muscle mass during the cutting/leaning out phase.

If you are dieting and losing muscle mass then your body is in a catabolic state and this is totally the wrong direction to be heading.

Not all steroids can do both jobs in such a powerful manner and this is why many athlete’s use Tren.

Tren also gives you a dryer harder look and the increase in red bloods help with the vascularity and the ripped look.

Side Effects of Tren

Many steroids do have some adverse side effects. Trenbolone is one of the harsher steroids because of its powerful anabolic and androgenic properties.

Individual responses and sensitivity to Tren can play a role in the severity of the side effects, if any at all.

Some individuals have one injection and they are knocked out and others have been cycling Tren for years and have no health issues what so ever.

Research has indicated the following side effects associated with high doses of Trenbolone:

  • Increased hair loss
  • Increased bouts of acne
  • Hypertension
  • Insomnia
  • Night sweats
  • Loss of sex drive
  • Increased anxiety levels
  • A quick resting heart rate

Trenbolone is not a catalyst for oestrogen conversion and therefore is not associated with bloating and water retention.

Nevertheless, Tren is a potent progestin and this can lead to gynecomastia, especially in people who already susceptible to this condition.

In addition, Tren can also cause suppression of testosterone levels, it will close down your natural production of testosterone and can shrink your testicles.

Trenbolone also seems to give users a poor sleep pattern and insomnia. Plus it can cause severe sweating during the night and even the simplest activities such as walking upstairs can cause you to sweat a lot more than usual.

Tren usage can also impair cardiovascular function which can also have a negative impact on daily functional fitness. Therefore, daily activities such as walking, lifting and carrying etc; can become a lot more arduous.

There is evidence to suggest that Tren usage can increase your blood pressure levels and this can place additional stress/strain on the heart.

In terms of the kidneys, long-term Tren usage can cause your urine to be an orange-brown colour. This discolouration of the urine has been associated with Tren’s ability to increase your sweat rate and water loss from excessive body heat.

TrenorolWhile using Tren it is important to keep an eye on your hydration levels.

Safe alternative to Trenbolone

A proven and safe alternative to Trenbolone is Trenorol, which is available to buy online from the Crazy Bulk website.

This supplement mimics the powerful steroid, without causing any negative side effects. Meaning you can experience maximum gains without harm.

At the present time you can buy a bottle of 90 capsules for £37.58, which is £13.96 off the RRP.

It is possible to get even better savings as you can get a third bottle completely FREE of charge when you buy 2 bottles.

Every order from Crazy Bulk is eligible for FREE shipping to both the UK and USA, with discrete billing.

Click Here to buy Trenorol from Crazy Bulk!


    • There have not been any similar reports from others, and the CrazyBulk supplements are usually well tolerated and deliver good results.

      I would suggest to you that if you have any concerns you should get in touch with the CrazyBulk customer support team. 🙂


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