What is Trenbolone Acetate?

Trenbolone Acetate

Trenbolone acetate, commonly referred to as ‘Tren A’ or ‘Tren Ace’ is referred to as the ‘King of steroids’ for a reason.

Users can experience huge gains in lean muscle mass and all-out strength in a relatively short period of time. Tren is known to promote lean gains and also give a more full, thick and dense 3D look to the muscle.

The acetate ester is similar to NPP or test prop. The initial spike happens very quickly with a quick decline of blood levels over a 24 – 72 hour period. Most users will inject Tren Ace 3x weekly to keep levels stable and optimum.

Trenbolone has an androgenic and anabolic rating which is 5x higher than testosterone. Even so, users rarely report estrogenic side effects while on cycle. However, managing progesterone can be a whole other issue. 

New users and more experienced users alike can expect to see significant gains in strength across all lifts and huge increases in lean muscle mass, hardness and definition.

Tren does have its downsides, though. It can have negative impacts on mental state and many people report little to no appetite while on cycle.

Androgenic Rating: 500

Anabolic Rating: 500

Trenbolone Ace cutting cycle
Alpha Pharma Trenbolone Acetate

Tren Ace

Tren is often supplied in vials of 100mg. Depending on the country of origin, you can also find it in 50mg/ml dissolved in a carrier oil. 

Tren is not available as a pharmaceutical-grade or veterinary grade product. Any tren on the market is manufactured by UGLs.

How Much Does Tren Ace Cost?

Tren is one of the more expensive steroids on the market. The cost of the raw powder to manufacture is much more than that of testosterone or deca. The price of tren can vary from lab to lab.

An average price range for purchasing from an underground lab can be from £35 per 10ml vial up to £60.

What Does a Tren A Cycle Look Like?

Depending on the reason for cycling tren ace you can incorporate different compounds. Tren is very versatile and can be used on bulking cycles and cutting cycle. However, it is important to note many users report a reduction in appetite which is one of many reasons people prefer to use it pre-comp.

Tren A is usually run for around 8 weeks, maximum. People who suffer side effects on Tren often report that these are less notable on Tren A. It is person dependant, though. 

Typically Tren ace cycles run at around 150 – 400mg per week. This is more than enough to see significant gains in strength and size.

For anyone wanting to run longer cycles then trenbolone enanthate is the longer-acting ester, and more favourable for some thanks to the less demanding injection frequency. 

It is also very rare to see tren run solo. Running testosterone alongside tren has been reported to negate some side effects, many people have also reported running higher tren to testosterone to further reduce side effects.

As with anything to do with performance-enhancing drugs, not everything works for everyone. It is important to listen to your body and see what works for you. 

Beginner Tren Ace Cycle

Weeks 1 – 8

  • Monday 1 x 100mg test prop / 1 x 50mg tren a
  • Wednesday 1 x 100mg test prop / 1 x 50mg tren a
  • Friday 1 x 100mg test prop / 1 x 50mg tren a
  • AI (Aromatise inhibitor)
  • Weeks 8 – 10 PCT

More Experienced Tren Ace Cycle

Weeks 1 – 8

  • Monday 1 x 150mg test prop / 1 x 75mg tren a
  • Wednesday 1 x 150mg test prop / 1 x75 mg tren a
  • Friday 1 x 150mg test prop / 1 x 75mg tren a
  • AI (Aromatise inhibitor)
  • Weeks 8 – 10 PCT

Advanced Tren E Cycle

Weeks 1 – 8

  • Monday 1 x 200mg test prop / 1 x 100mg tren a
  • Wednesday 1 x 200mg test prop / 1 x 100mg tren a
  • Friday 1 x 200mg test prop / 1 x 100mg tren a
  • AI (Aromatise inhibitor)
  • Weeks 8 – 10 PCT

How To Inject Trenbolone Acetate

For a step by step guide on how to safely inject Tren A please see this article ‘How to inject steroids safely’.

Tren A side effects how to inject
SIS Labs Tren Ace

What Are The Side Effects of Trenbolone A

Any drug can have side effects and steroids are no different. Side effects of Trenbolone can come in various forms and are usually more prevalent for people who run continued length cycles or use more substantial doses.

Side effects from steroids can affect the cardiovascular system, estrogenic and androgenic.

When using anabolic/androgenic steroids, it is essential to understand the risks associated with the use and also how to minimise the chances of them occurring. 

It is important to note that not everyone will experience side effects from steroids. It is essential to know and understand the risk associated with them, though. 

We can break down the side effects of Trenbolone into the following subjects;

  • Estrogenic side effects
  • Androgenic side effects
  • Cardiovascular side effects
  • Hepatotoxicity
  • Natural testosterone shutdown
  • Mental

Androgenic Side Effects Of Tren A

Trenbolone has a strong androgenic rating. As such, side effects can be more pronounced on cycle than many other steroids.

Tren can cause large breakouts of acne, especially on the back, oily skin and increased growth in body and facial hair. There is also the possibility of progesterone increasing which can cause gynecomastia.

Trenbolone is also notorious for reducing libido in men. Many users report softer erections or the inability to climax while on cycle.

Estrogenic Side Effects

Technically speaking, trenbolone isn’t aromatized by the body and doesn’t raise estrogen levels. However, when running alongside testosterone or another compound which can aromatize progestational side effects can become much more pronounced, which can lead to similar side effects.

Progestional side effects of trenbolone can include water retention, an increase in body fat and gynecomastia. The rise in progesterone is also related to the inability to climax and softer, or weaker erections.

If you suffer from these effects using compounds such as Cabergoline can help to reduce and stop them.

Cardiovascular Side Effects

Although trenbolone acetate users do not often report much water weight. The additional weight gained in short spaces of time and can result in added strain on the heart and organs.

Tren is notorious for affecting cholesterol levels by reducing HDL or ‘good cholesterol’ and increasing LDL ‘bad cholesterol’. This shift, over time, can result in the hardening of the artery walls and higher levels of fat in the bloodstream leading to strokes, or heart attacks if left unchecked and untreated.

The increase in muscle mass and weight can also lead to higher blood pressure which can again, affect the heart and kidneys.

Running tren can also affect your blood ‘thickness’. 

It is highly recommended for anyone thinking about running a cycle, or who has already run one to get blood tests done at least every three months. This not only allows you to know what is going in regards to your health but also make any necessary adjustments before starting.

Does Tren affect the liver?

Trenbolone is generally unlikely to cause liver damage. It is important to note, though, with its strong androgenic and anabolic rating it has been noted that trenbolone does have a stronger resistance to being broken down in the liver.

High dose cycles or prolonged cycles could push liver markers beyond normal levels.

Natural Testosterone Shutdown 

Using any form of steroid will lead to the suppression of your natural test production. This often returns after the cycle has stopped. In rare cases or when users have been on cycle for prolonged periods, people can be shut down permanently or suffer from low testosterone levels for many years.

PCT ancillaries such as HCG can help keep the testes stimulated and producing natural testosterone. It is usually taken as a part of a PCT (post cycle therapy).

Tren Mental Side Effects

Many users report the side effects of using tren. Including feeling depressed, anxious and on edge. It has been noted that users can feel quite ‘emotionless’ and ‘distant’, with people reporting feeling back to ‘normal’ after stopping the cycle.

If you suffer from pre-existing mental health conditions it may not be a good idea for you to use tren. If you decide to use it any way you should monitor your day to day thoughts and state of mind to judge whether you should continue to use or stop. 

Benefits of using Trenbolone Acetate

  • Notorious mass and strength builder
  • Short cycle
  • Unbeatable lean muscle gain
  • Increase in muscle density and hardness
  • 5x more potent than testosterone
  • Quicker out of the blood if side effects are encountered

FAQs on Trenbolone Acetate

How often should I inject trenbolone acetate?

The acetate ester is quite similar to the propionate ester attached to testosterone prop and NPP, albeit a quicker release. Trenbolone acetate is best to be injected three times weekly.

Three times weekly is the best way to maintain hormone levels while maximising blood levels for maximum benefit.

Is trenbolone acetate legal?

In the UK steroids fall into a grey area. Having steroids for personal use isn’t illegal, yet importing them is. They are readily available for purchase from many people including online retailers.

What is the best stack with trenbolone?

Tren is a powerful drug, using it with testosterone will more often than not over deliver on the results you would be expecting. However, to maximise your cycle you could add oral Winstrol or Masteron to increase muscle definition and hardness.

How long should I run Tren Acetate?

Trenbolone acetate is best used in short cycle. The three times weekly injection cycle is a lot for anyone wanting to run a cycle for longer than eight weeks.

For longer cycles people generally prefer to run trenbolone enanthate.


Trenbolone is often referred to as the ‘king’ of steroids and it has earned that reputation over and over again. Nothing comes close to the strength gains and levels of muscle density, hardness and lean growth.

It is important to remember tren needs to be treated with a level of respect. The impact it can have on mental health is very real and very notable. 

Trenbolone acetate cycles are mainly run pre-competition. More and more people are using tren to improve their summer look and it is being used more and more in strength competitions.

There is little on the market which can replicate what tren does, however, the trade-off for many may make it not worth their while. 

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