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Clenbuterol

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What is clenbuterol?

In our industry, clenbuterol (better known as clen) is usually known as the “cousin” of ephedrine. That's because clen stimulates beta-2 receptors as a beta-2 agonist. Essentially, that means clenbuterol allows you to burn stored fat calories (your bodyfat) as energy before you reach other sources of fuel.

Clenbuterol is approved in certain EU countries as an asthma drug, but it's banned by the US FDA. However, it has found a home with livestock farming worldwide. It's fed to animals to increase fat free lean mass (FFL), so the animals get more muscles and less fat.


What are the benefits of clenbuterol?

Clenbuterol is mainly used as a fat-loss drug; almost exclusively in cutting cycles. Most users are amazed at the increase in lean mass after clen use. That's because studies have shown that it can increase your fat free mass and increase your basal metabolic rate (BMR), while acting as an anti-catabolic and anabolic.

Clenbuterol has amazing properties: it's a fat loss pill with the ability to aid muscle retention, decrease muscle loss and boost aerobic capacity. In simple terms, you get big and ripped!


What are the the side effects of clenbuterol?

Clen is probably one of the most controversial drugs in bodybuilding these days. Recently, if you read the message forums, people overstate the negative impact of clen all day long. Go 5 years back and clenbuterol was the savior from god for fat-loss. Well, what the heck is the truth? The truth is always somewhere in the middle.

I find that fellow bodybuilders tend to forget we are on steroid forums and in the steroid industry. We take drugs that can only be described as dangerous if you're nice, and deadly if you're in the media. Just think about it, the average UG (underground) lab produces testosterone, you inject in your body, with cooking oil, benzyl alcohol (BA) and benzyl benzoate (BB). Did you know that benzyl alcohol is used as a solvent in paint stripper, paints, inks and lacquers? Don't believe me? Read this: BA information. Now, let's move to BB. Did you know that benzyl benzoate is used as a solvent and as an ingredient in dyes? And these ingredients are just some of the poisons many of us are injecting into our bodies all the time, in some cases daily! Everything is relative, never forget that.

That being said, I don't want to detract from side effects of clenbuterol here, and, by no means, am I saying it's side effect free. There are real sides associated with its use:

  • dizziness
  • heart palpitation
  • anxiety
  • abnormal sweating
  • over-heating
  • blood pressure problems
  • heart problems

What dosages of clenbuterol can I take? How do I use it?

Clen is nothing to play with, you should always start with a low dose, around 20mcg/day and never go over 200mcg/day. In general, for men, the dose is around 60-100mcg/day. For women, 10-40mcg/day is usual.

While there are a lot of rumors on the 2 weeks on, 2 weeks off regiment with clen, they aren't based on true science. Studies have shown that fat-free mass (FFM) increased in week 6 of usage by almost 5%. (reference: J Appl Physiol (1985). 2001 Nov;91(5):2064-70.) Therefore, it's safe to assume the best results come after the first 2 weeks. The problem is there is a deregulation of the CNS (central nervous system) beta-2 receptors for most people towards the third week of use. As a result, you'll need to add anti-histamines likes Ketotifen or Benadryl to keep clen working past the first 2 weeks

With all that in mind, I find it easier to have my clients just run clenbuterol 2 weeks on, and 2 weeks off, which makes it easier all around for them.

For daily use, supplementation is a requirement. You should use the following supplements every day:

  • N2Guard
  • Taurine
  • Potassium
  • Electrolytes

Can you give me clenbuterol cycles for both men and women?

This is a typical cycle for men doing clenbuterol - pure cutting cycle.

Week Clenbuterol Anavar Cardarine

GW-501516

N2Guard
1 20mcg/day 40mgs/day 20mgs/day 7 caps/day
2 40mcg/day 40mgs/day 20mgs/day 7 caps/day
3 -OFF- 40mgs/day 20mgs/day 7 caps/day
4 -OFF- 40mgs/day 20mgs/day 7 caps/day
5 40mcg/day 40mgs/day 20mgs/day 7 caps/day
6 60mcg/day 40mgs/day 20mgs/day 7 caps/day
7 -OFF- 20mgs/day 7 caps/day
8 -OFF- 20mgs/day 7 caps/day
9 60mcg/day 20mgs/day 7 caps/day
10 80mcg/day 20mgs/day 7 caps/day

This is a typical cycle for women doing clenbuterol – cutting cycle.

Week Clenbuterol Cardarine

GW-501516

N2Guard
1 10mcg/day 10mgs/day 3 caps/day
2 20mcg/day 10mgs/day 3 caps/day
3 -OFF- 10mgs/day 3 caps/day
4 -OFF- 10mgs/day 3 caps/day
5 20mcg/day 10mgs/day 3 caps/day
6 30mcg/day 10mgs/day 3 caps/day

What is the half-life of clenbuterol?

Clen half-life is around 48 hours, so after taking one dose you'll have it in your system for up to 2 days. Therefore, never high dose the first 3-4 days of your cycle. You need to get a feel for what dosage is right for you.


What celebrities used clenbuterol?

The most famous celebrities to use clen are:

  • Britney Spears
  • Lindsay Lohan
  • Victoria Beckham

While in sports, many athletes have tested positive:

  • Katrin Krabbe (Olympic sprinter)
  • Guillermo Mota (MLB Baseball player)
  • Jessica Hardy (US Olymic swimmer)
  • Lainer Bueno (MLB Baseball player)
  • Mick Rogers (Bike racer)
  • Mick Rogers (Professional boxer)

Can you give me some clen trade names?

These are some alternative names for clen, there aren't many in the industry.

  • Spiropent
  • Ventipulmin
  • Clenbuterol hydrochloride
  • Clenbuterall
  • Clenbuteroll
  • Clenabol
  • Sopharma Clen

Clenbuterol Videos

This is a general video explaining clenbuterol:


Clenbuterol Video 


Clenbuterol Photos

Here are some pictures of different clen bottles:
clenbuterol la-pharma

clenbuteroll gslabs

clenbuterol balkan-pharmaceuticals

clenbuterall

Lyka Labs clenbuterol

References

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Have your say!

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Avatar photo
Written by
Albert Wolfgang is a professional medical writer with over 20 years of experience. He hold multiple personal training certifications, including the coveted NASM and AFAA certificates. He graduated with honors with a B.S. and M.S. in biochemistry with a minor in physical studies. Albert and his team have trained over 100 IFBB professional bodybuilders, including Hollywood stars and many up and coming fitness stars.

13 Comments

  1. Avatar photo

    Hi. I’ve stacked clen with anavabol before. On my package it shows Clen20 and Anavabol10. When should I take how much? Thanks

    • Avatar photo

      Depends on the dosages, sounds like 20mcg clenbuterol and 10mg anavar, follow dosages accordingly.

  2. Avatar photo

    I bought some clen but I’m not sure if it is legit or not. I’m not experiencing any side effects other than possible heart palpitations but it might be in my head.

    • Avatar photo

      My friend, Clenbuterol side effects are very subjective. Your CNS responds differently to clen, depending on your stimulant response.

      For example, guys who take a lot of stims and coffee won’t get the nasty side effects from clen (like jittery feeling) but will still get the results.

      • Avatar photo

        Thank you for responding, it did clear up some lingering emotions. Then the lack of side effects had me worried even more prior to your response.

  3. Avatar photo

    Where do people wanting to try it get a hold of Clen?

  4. Avatar photo

    great article, I wanted to ask if dosages of Anavar to 40mg for 6 weeks, is need a PCT after use of anavar. The article does not mention PCT, but is it necessary?

  5. Avatar photo

    Are CrazyMass dot com or CrazyBulk dot com legit. I already placed an order for Clenbuterol. However after googling for reviews, it seems they’re all sponsored reviews. Can someone confirm if either of these companies are legit? Can you suggest another online distributor?

    Thank you!

    • Avatar photo

      Crazymass sells steroid alternatives, not steroids. These are dietary supplements with similar names to steroids, they are NOT anabolic steroids. They have this information listed on the website in the disclaimer.

      • Avatar photo

        I recently bought from ‘CrazyMass’ and I wouldn’t do it again. As Albert mentioned they are not steroids and it clearly states that on their site and any supplements they send you.

        I have not seen decent results from thier products. Neither can I find any reviews of thier products online that appear to be legit. I wasted money chancing it with them.

  6. Avatar photo

    Great article

    What are some websites where I can buy clenbuterol?

    Thanks

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