What Is Clenbuterol? – A Detailed Guide

Let’s face it.

Trying to lose body fat is a huge pain in the ass and is anything but simple and straightforward.

If it was, the world wouldn’t be in the midst of an obesity epidemic, and instead, everybody would be walking around lean and ripped.

We all want to lose weight for different reasons, so whether you want to get healthier, or simply look better, chances are we can all benefit from losing a little fat, unless you’re already in shape.

For bodybuilders and fitness competitors, stripping away body fat and preserving muscle mass is harder than ever, because normally they’re already pretty low when it comes to body fat.

To help them lose those last few stubborn pounds and to allow them to reveal the ripped muscle hiding underneath, there are certain drugs and supplements that can be used.

One hugely popular compound used for cutting is Clenbuterol, and it is Clen which we’ll be looking at here. But what is Clenbuterol?

We hear you ask, well, fear not, because below you will soon be brought up to speed.

Here we’ll be looking at what is Clenbuterol, how it works, why it is so effective, potential side effects, and any other info which may be deemed helpful.

What Is Clenbuterol?

Clenbuterol, or Clen, as it is sometimes known, is very popular in the bodybuilding world as it is a drug which is incredibly effective when it comes to fat loss.

Originally, Clenbuterol was not designed for aesthetic purposes at all.

Instead, it was designed to be used as a bronchodilator to help address breathing disorders in certain individuals.

It is a beta-2 agonist which, due to the fact that it is very similar to the stimulating drugs such as ephedrine, makes it perfect for people looking to speed up their fat loss results.

In actual fact, for athletes and bodybuilders looking to cut, the Clen has been the drug of choice for many for many, many years now.

The reason for this is that it is thermogenic, which means that it increases core body temperature and therefore boosts the metabolism.

It also possesses anti-catabolic properties, which is very important for bodybuilders, as this means that it can allow them to preserve and even potentially build lean muscle tissue, whilst simultaneously burning body fat in the process.

How Does It Work?

Now, onto the science.

Clen works by basically helping to stimulate receptors in the body known as beta-2 receptors.

These receptors are responsible for regulating and controlling a person’s overall metabolic rate.

Put simply, these receptors determine how weak or how effective a person’s metabolism actually is.

Well, quite simply, it is able to achieve this by mimicking the effects of adrenaline within the body.

Adrenaline, also known as norepinephrine, has stimulating effects which boost the metabolism and subsequently result in more stored body fat being burnt off and converted into energy.

Thermogenesis kicks in, which is where cellular mitochondria generate heat in the body by converting fat and glucose into thermal energy.

We constantly need to keep our core body temperatures stable, and in order to regulate this, the metabolism is constantly using fat and calories to generate this energy.

When we increase our core body temperature, our bodies have to work harder to regulate the temperature, which means more calories and fats are burnt off, resulting in us looking leaner.

There is a fair amount more science to it than that, but that is the basic principle behind what is Clenbuterol and how it works.

What Is Clenbuterol

What Are The Benefits Of Taking Clenbuterol?

Now that we know what Clen is, and how it works, let us now tell you about the wonderful benefits associated with taking Clen.

These include, but are not limited to:

Fat Loss

First and foremost, we’ll get the most obvious benefit out of the way first.

Yes, Clen is indeed a fantastic fat burner that will help turn your body into a fat-burning machine in no time at all.

Bodybuilders especially, can benefit from Clen because as you probably know, the lower your body fat percentages drop, the harder it becomes for you lose weight.

In order for a bodybuilder to step on stage and look ripped, they need to be down into single digit body fat percentages, and Clen will certainly help them to get there.

For example: Jeff seid, Steve cook, Bradley Martyn and Calum von moger.

More Energy

Another great benefit associated with taking Clen, is the fact that it will help energize your body.

Most people when dieting, will suffer extreme drops in energy levels because they will of course be in a caloric deficit so that they can lose weight in the first place.

Clen however, turns your body into fat-burning, energy-producing machine.

When taking Clen, as you are burning more body fat for energy, your energy levels increase, which often results in more efficient training sessions in the gym.


When you place your body into a caloric deficit normally, some muscle loss will be inevitable because your body will enter a catabolic state.

A catabolic state is the exact polar opposite of an anabolic state, so it means that the body eats away at muscle tissue and breaks down muscle proteins and uses them as an emergency energy supply.

With Clen, however, as your body will be getting what it needs from your stored body fat, your muscles are left alone so you can strip away body fat, without losing any muscle.

Suppresses The Appetite

When dieting, the last thing you want is to feel hungry all of the time.

There are a few reasons for this.

To start with, if you are hungry you are more likely to eat more and will therefore take in more calories, making it harder to lose weight.

Then of course, there is the fact that hunger often leads to cravings for junk food, so you may be tempted to cheat on your diet.

Even if you don’t cheat and you remain strong, you will still feel miserable whilst thinking about all of the delicious food you are missing out on, which is obviously not ideal.

Clen is great because it has the appetite suppressing qualities so not only will you fill up quickly and eat less, you will also experience far fewer cravings for junk food you aren’t allowed until you finish your cut.

You can also check the many benefits of Clenbuterol for women.

Side Effects Of Clenbuterol?

Like all things in life, we have to take the rough with the smooth, so we’ll now take a quick look at some potential side effects when taking Clen.

Before we do, however, it’s important to talk about how you should never exceed the recommended dosage and you should always use as instructed.

Failing to do so can put your health at risk.

Potential side effects include:

  • Insomnia
  • Erratic heart rate
  • Anxiety
  • Sweating
  • Muscle cramping
  • Nausea

Is PCT Required?

PCT, or Post Cycle Therapy, is a process used by bodybuilders when they finish a steroid cycle.

It is designed to help restore hormonal levels, such as testosterone, to combat estrogenic side effects associated with aromatizing steroids, and to help protect the body and major organs from any potentially damaging effects.

Clenbuterol however, is not a steroid, and so therefore it does not require PCT if being used alone.

However, if it is being stacked with other steroids, PCT will indeed need to be run.

Some bodybuilders have been known to actually use Clenbuterol as part of their PCT when finishing a steroid cycle.

Now that we know what is Clenbuterol and how it works, however, hopefully matters regarding PCT will now be a little clearer.

Where To Buy Clenbuterol

If you’re looking to purchase clenbuterol online, check out the most reputable online store here.

If you’re looking to burn fat without losing your muscle size, Clen is your best way to get a shredded body!



Shredded Physique

Hello, and welcome to Shredded Physique, I’m Reda EL, Entrepreneur, Iron addict and personal trainer, and also, the owner, creator, moderator, author, and basically everything else around the website.

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