Does Clenbuterol Increase Testosterone Levels?

Clenbuterol is a popular bodybuilding supplement that’s used for cutting…aka burning fat. Most people don’t think clenbuterol increases testosterone levels, because it’s not anabolic; it’s a thermogenic.

However, clenbuterol often results in some user’s experiencing high testosterone symptoms, such as:

  • Increased confidence
  • Increased aggression
  • More energy
  • Higher libido
  • Increased strength

Clenbuterol can spike your confidence, energy levels, libido and even your strength levels. But this doesn’t mean it’s increasing your testosterone levels, but instead giving you similar symptoms of high test.

The reason clen causes a user to receive positive side effects of higher T is because it’s a stimulant; meaning it increases the level of adrenaline in the body. Adrenaline won’t give you a testosterone boost but it will cause you to be more alpha during the ‘high phase’. Those who drink tea/coffee often refer to this as a ‘caffeine high’. However, after this initial sensation wears off and you come off clen, these testosterone symptoms will go back to normal again.

How Clenbuterol CAN Boost Testosterone Indirectly

Clenbuterol can be described as a powerful cutting agent or stimulant – but not a steroid. The two main benefits of clen is to burn fat and increase energy levels. So, by burning fat, clenbuterol can indirectly increase testosterone levels. This is because the leaner a man is, the higher his testosterone will be. This is because the more fat a man is carrying, the higher his estrogen levels will be. When estrogen levels rise, testosterone takes a dive.

Thus because clenbuterol does burn fat, it’s possible it can indirectly increase testosterone in men over the long-term.

It’s also worth noting that with clen you won’t have to worry about low testosterone or infertility post-cycle as it doesn’t shut you down like anabolic steroids do.

More About Clenbuterol 

Cllenbuterol is dosed in micrograms and mostly found in tablet form. Even so, there are other methods of administration such as nasal sprays, injectables and liquids. Although dosages are mainly in microgram quantities, some manufacturers list the active ingredients as milligrams (mg).

How Clenbuterol Works

Clenbuterol’s effects mimic adrenaline rather than anabolic steroids. The supplement works by triggering the beta-2 receptor cells which cause thermogenic effects in the body, it allows you to burn fat quickly whilst maintaining your muscle mass.

Steroids are synthetic compounds that are usually derivatives of testosterone. They promote muscle growth and enhancement of male characteristics such as sexual functioning and skeletal muscle. On the other hand, clenbuterol is a stimulant which increases your overall body temperature. spiking your basal metabolic rate, aerobic capacity and relaxing your muscles.

Increase in Stamina

Clenbuterol increases aerobic capacity in a different way than testosterone, it works by stimulating the central nervous system (CNS) and increasing oxygen distribution to the muscles. The supplement’s main effect is on the user’s basal metabolic rate, which becomes turbocharged after just a few days of taking clen.

Consequently, you’ll burn fat and appear more muscular due to improved muscle tone and definition. Sometimes, bodybuilders will stack clenbuterol with several steroids to maximize this effect.

When taken in the correct dosage, clenbuterol has powerful thermogenic properties that’ll result in rapid weight loss. Such weight loss is evident in magazines,, which feature Hollywood celebrities, who often use clenbuterol to aid their cutting attempts.

Clenbuterol burns body-fat and improves cardiovascular endurance by increasing oxygen transportation, enabling you to sculpt a lean and ripped body just as effectively as if you were to take cutting steroids. Clenbuterol can also be used as a decongestant and bronchodilator for people with breathing conditions. So it’s not just used in bodybuilding, but in medicine too.

Clen revs up your metabolism into overdrive, whereby the body uses stored fat deposits for its energy needs. You’ll be able to shed extra fat faster, whilst your muscles are able to perform longer and more rigorous workouts.

Bodybuilders will be able to complete more repetitions and sets than usual, with less rest in-between. Also, during the cutting cycle, clenbuterol will keep your muscles looking big and full whilst getting rid of water and fat deposits that surround the muscles.

It’s recommended to use clen for moderate periods with short breaks in-between. An effective cycling regimen would be a 2 weeks on, 2 weeks off cycle. Typically, maximum plasma levels can be reached around 2-3hrs after oral administration, whilst the half-life for clenbuterol is about 34 hours.

A supplements half life is how long it takes for plasma levels to halve.

So if you were to take clenbuterol at 12pm on Monday.

By 10pm on Wednesday you’ll only have 50% of the clen remaining in your system.

In most cases, users will take one 20mcg tablet on the first day, followed by a 1 tablet increase for the remaining days of your cycle. Subject to individual tolerance levels, a dosage amount of 140mcg should be taken by day 7, and usually this amount will be sustained for the entire second week.

It’s not advisable to exceed 7 or 8 tablets per day due to receptor over-stimulation.

For your next ‘cycle’ which will essentially be week 5 and 6, there’s no need to increase your dosage so dramatically, as you’ll no longer be new to the drug. For instance, if a user finished their initial cycle of clenbuterol on 7 tabs a day, they can recommence at a lower dosage of 4 or 5 tablets, and then go up again from this dose. Though the limit should not be more than 7 to 8 pills per day as earlier stated.


Clenbuterol has very little effect on testosterone levels since it has very mild anabolic properties (compared to steroids). However, research shows that its profound fat burning effects may indirectly spike testosterone levels due to a user becoming leaner; thus reducing the conversion of testosterone to estrogen.

When combined with a strict diet, clenbutrol’s capable of melting huge amounts of body fat. Thus it’s indirect positive effect on testosterone levels over a period of time could be significant.

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