Clenbuterol is a steroid that is traditionally used to treat breathing disorders like asthma. However, the steroid has never been approved by the FDA and is considered an illegal performance enhancing drug in the world of professional sports.

Clenbuterol works in a different way than most steroids. It primarily works as a fat burner and thermogenic aid. After you take Clenbuterol (often abbreviated to “Clen”), your body induces thermogenesis, which basically means it heats up. This can melt away fat cells. Some bodybuilders will take Clen prior to an athletic competition to enhance a cut.

Clenbuterol works by targeting the sympathomimetic nervous system. There are multiple parts of the sympathomimetic nervous system, but Clenbuterol specifically stimulates the parts related to breathing problems and metabolism.

Instead of actively burning fat by attacking fat cells, Clenbuterol stimulates metabolism by increasing the body’s temperature. When your body is hotter, you burn fat at a greater rate.

Clenbuterol works as a stimulant first and an anabolic steroid second. The stimulant effects of Clenbuterol can be quite powerful: some people may experience side effects like shaky hands and a jittery or wired feeling – like the feeling if you just drank 5 cups of coffee. Most people will notice increased sweating – especially if you exercise while using Clenbuterol.

The anabolic effects of Clenbuterol are secondary. They’re not nearly as powerful as traditional anabolic steroids. In fact, many people take Clen as a post cycle therapy (PCT) after a stronger cycle of anabolic steroids.

There’s one big problem with using Clenbuterol as an anabolic steroid: it doesn’t work that way in humans. A number of animal tests (including test on rats) have shown that Clenbuterol works as an anabolic steroid, but no study has shown that Clenbuterol has anabolic effects in humans.

Ultimately, Clenbuterol works primarily as a fat burner and heats up your body. Don’t expect it to cause testosterone levels to skyrocket. However, if you’re looking to cut away fat and need an extra boost, then Clen may be exactly what you’re looking for.


Note; dosage information is only for scientific reference purposes. SARMs Central, does not condone the human consumption or use of this substance outside of a controlled scientific environment (i.e. a lab).

As with most things in life of this nature there is a maximum Clenbuterol dosage we must hold to if safety is going to be upheld. For most men the maximum Clenbuterol dosage will be 140mcg per day while many women will find 100mcg per day to be all they ever need. Women can exceed the 100mcg mark and go as high as 140mcg but this is rarely needed and can be a bit harsh.

Those who go beyond the 140mcg per day mark begin to open themselves up to possible cardiac hypertrophy; this refers to the enlargement of ventricles and this produces a lot of stress and strain on the heart. Further, those who break the 200mcg per day range run a very serious and high risk of this occurrence and you are highly advised to avoid such doses.

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Calvin Ramos

Calvin Ramos is a dedicated research and fitness enthusiast with a passion for helping individuals achieve their health and wellness goals. With years of experience in the fitness industry and a deep commitment to staying up-to-date with the latest research and developments in the field, Calvin brings a wealth of knowledge and expertise to his articles. As a fitness coach and nutrition specialist, Calvin has helped countless clients transform their lives through personalized training programs and evidence-based dietary recommendations. He holds a Bachelor's degree in Exercise Science and Nutrition from University and is certified in personal training and sports nutrition. Calvin's writing reflects his commitment to providing accurate and trustworthy information to empower readers on their fitness journeys. He believes in the power of education and strives to make complex fitness concepts accessible to everyone. His articles are thoroughly researched, drawing on the latest scientific studies and expert insights. When he's not writing or coaching, you can find Calvin in the gym, experimenting with new workout routines, or exploring the latest advancements in fitness technology. His dedication to the field of fitness and wellness is evident in his articles, which aim to inspire and inform readers on their path to a healthier, happier life.