Updated: 01/07/2018

A diet product’s worth depends on whether it actually helps people lose weight. Let’s find out if Clenbuterol really works. We really took our time to create a detailed review that focuses specifically on the side effects, ingredients, scientific studies, and customer-service quality. Then we analyzed numerous user comments from all over the internet. Finally, we summarized all of the data we gathered to give you the facts.

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1. What is Clenbuterol?

Clenbuterol is a sympathomimetic amine, which is useful for people who suffer from breathing disorders. Drugs such as Clenbuterol that open up the air passages are known as Bronchodilators. People with severe asthma or similar disorders are sometimes prescribed Clenbuterol as a means of improving their breathing problems.

Clenbuterol is also useful in reducing weight. Many bodybuilders use Clenbuterol to burn fat or calories to body fat.  This does not necessarily make it a good idea, as will be discussed below.

Clenbuterol can be obtained and taken via prescription, especially those who work out on a regular basis. It allows people to burn stored fat. In many countries, this prescription can be used for both asthma and weight loss.

Clenbuterol has properties which helps people reduce fat while retaining more muscles. An individual who wants to shape his or her body can benefit from Clenbuterol if used properly and smartly.

Some of the uses of this drug include:

  • Rouses beta-2 receptors as a beta-2 agonist
  • Mimicking ephedrine
  • Breathing disorder treatment
  • Livestock farming facilitation
  • Immense weight reduction during the workout.

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2. How did Clenbuterol Start?

Clenbuterol’s history seems controversial due to different factors. Initially, in the United States, Clenbuterol was legal for human use, but due to the bad effects on human body and illegal use, it was banned. However, currently, it has been legalized in different Europe and Asian countries.

Clenbuterol has not been legalized due to lack of USDA approval.  Thus, purchasing Clenbuterol in the United States is illegal.

Initially, those who opted to use anabolic steroids preferred Clenbuterol as a “cutting” agent. The purpose of Clenbuterol was to burn fat quickly while retaining muscle that bodybuilders or strongmen had fought for. Due to its rapid effect on the human body, different celebrities began using it.

The popularity surge of Clenbuterol started with international celebrities. Obviously, they wanted to look their best, and Clenbuterol is effective for rapid body re-composition. But it is important to mention that Clenbuterol usage was started without any clinical testing, which made it controversial in the United States.

The steroid has been used for different purposes with the passage of the time. It can be said that it has evolved in the recent years. For instance, it can also be used for parturition, allergies, and respiratory diseases in different animals, horses in particular. [CITE URL=https://www.muscletalk.co.uk/articles/article-clenbuterol.aspx]

Clenbuterol Customer Testimonials

3. Clenbuterol Claims

Clenbuterol has been approved by different medical institutions in Europe and Asia. According to the research of different medical institutions, it has been revealed that the Clenbuterol is effective for asthma patients and reducing weight. Apart with this, the companies use to claim that Clenbuterol can also be used in parturition and respiratory disease.

Normally, it is a perception that people who work out in the gym may want to gain weight. Clenbuterol is known in the bodybuilding and fitness communities for allowing the user to retain muscle mass while stripping away body fat. Traditional bodybuilders used Clenbuterol during their “cutting” cycles, allowing them to hold onto their excessive mass while reducing calories extremely low.

The most-prominent claim by companies and medical institutions is the use of Clenbuterol as a bronchodilator, as it also works for muscle relaxation. This is acknowledged by most medical professionals, regardless of Clenbuterol’s legality and side effects.

Interestingly, it has been observed that these claims have been approved in different countries, which enabled the recent legalization in many European and Asian countries. Also, on different media channels, celebrities are claiming far fewer side effects of Clenbuterol, which makes it more visible and prominent.

When producing Clenbuterol, the role of the companies is in the limelight, as these companies have to work with the FDA to justify all of their claims. The FDA has worked with various company experts and approved most of their claims. However, due to different criteria and availability of the substances in the United States, Clenbuterol is yet to be approved for non-prescription or over-the-counter sales. [2]

4. Clenbuterol Ingredients

  • Bilateral

It is an important ingredient, and it has been used for treating respiratory disease in horses. Due to the immense experimentation on animals and experts opinions, this ingredient has been included in the Clenbuterol to enhance its effects. [3]

  • Spiropent

This ingredient is used for production and secretion of catabolic hormones. Airway narrowing, asthma, chronic obstructive pulmonary disease (COPD), and many other respiratory diseases are treated this way. Thus, this is also a top ingredient for Clenbuterol.

  • Ventipulmin

It is an effective ingredient, often used for treating asthma in animals. Interestingly, with the passage of the time, it has also been used for treating asthma in humans. [4]

5. Does Clenbuterol Work?

Clenbuterol does work due to its different properties. For instance, it stimulates muscle protein synthesis. It helps relax the muscles and burns calories, which ultimately helps with body composition.

The question has never really been “Does Clenbuterol Work?”, as it is commonly known that Clenbuterol is effective as a fat loss and nutrient partitioning agent. The question with Clenbuterol has been, “Is it safe for humans to use without the strict supervision of a doctor?

The safety and side effects of Clenbuterol will be discussed below.

According to our research, it has been revealed that this supplement is one hundred percent stronger than the older formulations. Almost 10 pounds in a week reduction in the weight has been reported.  The working can also be illustrated through different observations and characteristics.

Clenbuterol is a thermogenic and a potent stimulator of the metabolism. It protects muscle gains along with the cutting of fat. This has been consistently proven in clinical trials. [5] [6]

Interestingly, along with some inclusion of other ingredients, it seems legal without any prescription. Adrenaline (epinephrine) and Noradrenaline (Norepinephrine) works in the body, especially in people who have asthma.

Fat loss is the main people non-asthmatics use Clenbuterol. One example is Britney Spears, who was reported to use a Clenbuterol supplement. [7]

A number of professional and elite amateur athletes have used Clenbuterol in the interest of enhancing performance. Clenbuterol may or may not be an effective performance enhancer, but the drug is banned by most Major League sports, the NCAA, and the International Olympic Committee (IOC).

6. Clenbuterol Benefits & Results

The benefits of clean have been admired by experts and users. There are several advantages or benefits that people can gain from the Clenbuterol. The benefits of Clenbuterol are as under

  • The mainstream benefit is for the asthma patient. However, the main benefits are the immense increase in the metabolism. The Clenbuterol fights with the extra weight in the body through controlling the metabolic rate. With the use of the Clenbuterol, the player or an individual can plan the training program.
  • Even when working out, it increases the power and heat in the body that help to burn the extra calories in no time. The rapidness is one of the top benefits, which s quite visible
  • Interestingly, it works for stubborn fat in the body, which is also one of the most prominent benefits for people.
  • Another benefit, which is in the limelight, is the increase in the blood flow and oxygenation. Through the regular use of it, an individual can increase the effective transportation of blood in the human body.
  • Remarkably, it has been revealed that through the use of this supplement, the individual can enhance the visibility of endurance and tolerance levels. During the training in the gym, this is necessary to accelerate the intensity of a workout. It helps the individual to sustain the gyms and work for a long time to get the results.
  • The big advantage for people is an increase in skeletal muscle fiber new muscle mass. It has become easy for a bodybuilder to preserve the muscles and gain the results. Due to this, there can be sold foundations to reduce the weight.
  • Some people in the training or gym may face difficulties in breathing. It makes the heart and lungs stronger, which helps people to breath easily. Protecting the heart and lungs is the big benefit for people. It minimizes the risk of different negative impacts on the body during the workout.
  • A wonderful benefit of this supplement is appetite suppression. It makes the human in control the whole, as even in the hunger, he stops all cravings

It is essential for people to know all of these benefits and aspects prior to obtaining or using the Clenbuterol. It has different uses for different people, depending on their training programs, medical histories, and other physical activities. [8]

7. Details on Clenbuterol & Weight Loss

Concerning the weight-loss results of Clenbuterol, there are several insights.

Usually, there are two main functions that Clenbuterol performs regarding fat and weight loss. First, Clenbuterol increases the internal temperature of the body, which burns the calories. This is also known as upregulating the metabolism. Second, Clenbuterol increases the flow and delivery rate of oxygen, which increases the capacity of an individual to train harder.

But with Clenbuterol or any weight-loss agent, the most important thing is to keep the diet on point.

In most people, consistent weight loss can be achieved through the use of whole foods such as chicken, vegetables, and eggs and the elimination of excess fats and sugars from the diet. A powerful agent such as Clenbuterol can certainly expedite fat loss, but calorie control and diet remain the key component of any weight loss plan.

Having said that, the data attached to Clenbuterol usage is eye-popping.


After 1 week, an individual can lose 3 to 6 lbs.  After two weeks, the weight can be reduced from 5 to 8 lbs.  After 4 weeks, the weight can be reduced from 10 to 16 lbs. Finally, if an individual uses the Clenbuterol for 8 weeks, he or she can reduce the weight from 15 to 20 lbs.

There are a lot of other factors that determine how quickly a person loses weight, including body type, gender, and metabolism. But most experts agree that Clenbuterol typically induces rapid weight loss. [9]

8. How to Take Clenbuterol

  1. People should be careful when talking the Clenbuterol to get the results. The Clenbuterol Dosage is the best way to take, as it creates the good impact on human body.  Pertinent Clenbuterol Dosage must be used to enhance the visibility of fat burning.
  2. Despite having different ways to take this supplement, some appropriate methods have been derived.  For Instance, a man can take clean pills along with the investigations of the manufactures. The manufacture reputation is crucial, as he can protect from the false imitation.
  3. To get the best possible advantages or benefits, people should take Clenbuterol in two days on/ three-week cycle. Also, to accelerate the process, an increase in 20mcg in the dosage is effective in each week and then decrease by 20 mcg to keep the balance.
  4. It is to mention that the maximum daily dosage is 140 mcg for men and 120 for women. Also, the use of water with the passage of time is effective to protect the body from dehydrated. 7 to 9 glasses of water are best for both men and women.
  5. This big thing to consider before taking the Clenbuterol Dosage is creating the rationale. A man should know the purpose of taking these pills. Normally, when an individual intends to make the shaped body, burn fat, and get lasting and strong muscles, he should use the Clenbuterol Dosage.   To make the use effective and workable, there is a separated chart for both man and woman.


  • 40 mcg
  • 60 mcg
  • 80 mcg
  • 100 mcg
  • 120 mcg
  • 100 mcg
  • 80 mcg
  • 60 mcg
  • 40 mcg


  • 60 mcg
  • 80 mcg
  • 100 mcg
  • 120 mcg
  • 140 mcg
  • 120mcg
  • 100 mcg
  • 80 mcg
  • 60 mcg

9. Potential Clenbuterol Side Effects

Clenbuterol is notorious for severe side effects, which is the primary reason it is illegal to sell Clenbuterol in the United States or obtain it without a prescription.

Here are some of the more common side effects of Clenbuterol usage:

  • Anxiety/Nervousness
  • Anxiety attacks
  • Heart Palpitations
  • Dry mouth and throat
  • Heart diseases
  • Increases the cardiac muscle tissues of the heart
  • Blood pressure

Despite having different advantages, there are some scary side effects attached to Clenbuterol use.

The first side effect that the user of this supplement can face is Nausea and Vomiting. Clenbuterol has a powerful effect on the metabolism, and even people accustomed to over-the-counter fat burners can become extremely ill after starting a Clenbuterol cycle.

Sometimes, it has been observed that people take this pill without a proper diet. As discussed above, without a sound diet and workout plan, Clenbuterol usage can cause more harm than good.

Furthermore, Anxiety/Nervousness is another prominent side effect. As mentioned earlier, the use of Clenbuterol increases the body temperature and heart rate, which can initiate the anxiety attacks.

Sweating and dehydration are also side effects. Severe increases in body temperature also increase blood pressure in the body, as well as sweating. A person can very easily become unintentionally dehydrated, which is very damaging to the body.

Heart Palpitations is also a big issue when using  Clenbuterol. A person can feel that his or her heart is beating very fast, or even feel heart arrthymias.

According to medical experts, some data regarding the side effects have been produced. Some experts have argued that Clenbuterol increases the cardiac muscle tissues of the heart, which may disrupt the flow of blood.

Accordingly, in deciding to use or avoid Clenbuterol, potential users must carefully review these side effects and consult with a doctor or medical professional.

10. Clenbuterol Product Warnings

Different organizations in different countries are making Clenbuterol pills. It has been revealed that the firms, which are associated with federal medical institutions, are releasing their Clenbuterol products with warnings based on the opinions of the researchers rather than clinical data. This is very disturbing, and a major red-flag to us.

For instance, excessive use of Clenbuterol pills – even slight misuse – can cause a heart attack. There is a reason why Clenbuterol is restricted to prescription use in many countries, and that reason is that misuse can be very dangerous or even deadly to the user.

Another product warning is the anabolic effect on the human body. This is a fact that the Australia and United States have agreed upon regarding the use of Clenbuterol drug as a performance enhancer. Thus, the due to the ban from the local and international sports organizations of these countries, the following warnings have been issued regarding the use of Clenbuterol:

  • Do not use if you are under 21
  • Do not use without instruction in expecting women
  • Do not use if you experience any side effects
  • Do not use past expiration date
  • Do not use if the product is tampered with in any way
  • Only use seal packed products to retain the authenticity
  • Do not use if FDA does not approve it

11. Any Clenbuterol Lawsuits?

There are a significant number of lawsuits attached to Clenbuterol.

The prominent American swimmer, Jessica Hardy, was sued due to the illegal use of Clenbuterol despite having the ban. Interestingly, Hardy had taken Arginine Extreme, a dietary supplement. Though Clenbuterol is not on this supplement’s ingredient list, tests presented by Hardy’s protection side demonstrated that the Arginine Extreme did, in fact, contain Clenbuterol and that she unknowingly took the drug. Despite the suit being dropped, Hardy was still disqualified from the Olympics and received a one-year ban from competing internationally.  [11]

Mostly, lawsuits involving Clenbuterol have been lawsuits filed against athletes, as this drug enables the extraordinary growth of muscles and is considered by most agencies to be a performance-enhancing drug. [12]Also: read our Burn HD Weight-Loss Kit review »Clenbuterol Ingredients

13. The Bottom Line on Clenbuterol

Let’s take a final look at the facts, shall we? We were looking forward to reviewing Clenbuterol because it appeared to be a proven product for retaining muscle while stripping away body fat. But given the lengthy list of cons, not the least of which is the legality of obtaining Clenbuterol, we’re highly skeptical about recommending the supplement. Plus, there are frequent reports of side effects that leave us very concerned.

If you’d like to drop some pounds, we recommend selecting a supplement that is supported by published clinical research, with safe ingredients that don’t cause harsh side effects.

Among the best products we’ve seen this year is one called Burn HD. The four ingredients have been clinically tested and shown to help boost metabolism and increase fat loss. There are no reports of negative side effects and users across the web report amazing results.

Plus, the company that makes Burn HD is quite confident in the formula, so they’re offering customers a Special Trial Offer – nice touch.

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What are the ingredients in Clenbuterol?

Clenbuterol, also known as Dilaterol, Spiropent, or Ventipulmin, is a synthetic drug originally developed as an asthma treatment, but which also has weight loss properties. It is a sympathomimetic amine, similar to other weight loss drugs.

What are the side effects of Clenbuterol?

Common side effects of Clenbuterol include high blood pressure, anxiety, and tachycardia.

How do I know if Clenbuterol is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn HD, with scientifically backed ingredients.

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Does Clenbuterol work?

The substance has been made popular by bodybuilders in between bulking phases, but no official testing has been done to confirm its efficacy in weight loss. A number of high-profile individuals have successfully used Clenbuterol to help them lose weight.

What is the price of Clenbuterol?

You can find Clenbuterol on the Internet for around $50-$60.

Where can I buy Clenbuterol?

As Clenbuterol is not cleared for human use in the United States or the EU, you will probably need to purchase it from an offshore company and have it shipped over.

How should I take Clenbuterol?

You should take 2-3 capsules prior to working out for maximum effect.

How do I contact Clenbuterol customer service?

Check the website you plan on purchasing Clenbuterol from for customer support.

Can I return Clenbuterol?

Since most companies selling Clenbuterol are not regulated in the US or EU, it may be difficult to obtain a refund.

What are the most common complaints about Clenbuterol?

Although there have been reports of impressive short-term results, because Clenbuterol is not an approved drug, there is no consensus about how to use it correctly.


Previous Clenbuterol Review (Updated June 12, 2013):

What You Should Know

Clenbuterol, also called Clen, is used primarily by bodybuilders. The product has been around for 30 years and is used in some countries to treat asthma. The manufacturer claims that it works by raising the core temperature of the body to burn more energy. Clenbuterol is most commonly taken in pill form, but may also be taken as a liquid, nasal spray or injectable.

List Of Ingredients

We found no list of ingredients available on the website.

Product Features

The website says that Clenbuterol helps you lose weight and add definition quickly. It states on several pages that Clenbuterol is not a steroid. The scientific report indicates that it behaves like a steroid, and that has the effects of increasing cardiac output, raising blood pressure, increasing bronchial muscles to provide more oxygen to muscles, reverses the effects of insulin to make more glucose available and increases thermogensis to raise the body temperature.


  • The website is packed with information, although it is not always easy to locate.
  • The product has been on the market for 30 years.


  • The website advises that Clenbuterol only be used 3 weeks in a row because it downgrades the body's beta 2 receptors.
  • The very long list of side effects for this product includes nausea and vomiting, muscle cramps, nervousness, tremors, dizziness, drowsiness, chest pains, dry mouth, light-headedness, flushing, insomnia, headache, heavy sweating, heartburn, and a rise in blood pressure.
  • The website states that the effects are similar to ephedra, a substance banned after causing many heart attacks, and to steroids.
  • Clenbuterol is banned for use by professional athletes by the World Anti Doping Agency and the IAAF
  • Clenbuterol was developed to treat asthma in horses.
  • Clenbuterol is not approved by the FDA for human, but it is not illegal. It is approved for use in horses.
  • Clenbuterol seems to be pricey at $100 a bottle, but it's difficult to tell how long a bottle will last, since dosages are calculated by mcg and depend on gender and weight.


We can't recommend this product. The scientific process sounds very close to other products that have proven to be extremely dangerous. There is a long list of side effects and contraindications. Pregnant women, people with heart problems or high blood pressure, diabetics, and people taking beta-blockers should not take Clenbuterol. Instead of taking potentially dangerous drugs, find an appetite suppressant and a reliable fat burner that does not work by causing alarming reactions in your body, follow a healthy diet and get some exercise. You'll be healthier and thinner in no time without increasing your risk of heart attack or stroke.

12 Clenbuterol Reviews

  • What happen when pregnant women takes clenez100

    Wht if a pregant women takes clenez 100?

    • Maribel (Editor)

      Hello Honey, because of possible interactions with pregnancy, please make sure to consult with your physician before taking this product.

  • ephedren in clenbuterol

    is there any ephedren in clenbuterol?

    • Maribel (Editor)

      Hi Angus! For more ingredient details, please refer to the Clenbuterol official website for more information.

  • please share with us

    Hi, if someone used it before please share with us

    • Alex

      it’s excellent although it gives pain to my elbows at moments, besides that excellent! Would recommend to anyone

  • Where can I purchase this?

    Who can supply me with cheap anabolic steroids in sandton bbm me or email me 27202B91

    • nic

      Wanted to ask if you ever found gear in sandton? Thanks

  • Where can I get this product?

    Good Day,

    Who can supply me with clen in Johannesburg Sandton. My number is 083 6897902

  •  Will exercise more to loose weight
    mike (Verified User)

    my clen is working great for me its help me shed so much weight i looked fabulous at my wedding and even my wife is trying it now i got my clen at clenbuterolsupplies.co.uk i should excersize more but im still losing weight so im happy

    • Alex

      Mike, how has CLEN been for you? Can you give any issues that you experienced.. I am thinking of using… Thanks .. Alex

      • Shubham

        Am using Astralean Clen 40mg for a long time….it does give me dizzy feel sometimes but has helped me reduce almost 58 kgs in a year.