Clenbuterol Vs. Fat Burner – What Works Best for Fat Loss?

January 10, 2024 |

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OTC fat burners are hands down better than Clenbuterol. Not only they are safer than Clen, but their weight loss efficacy is nearly the same as this steroid-like amine.

In fact, Clenbuterol is not even approved by the FDA for human use. 

Also, case studies report how individuals abusing this compound suffer from severe disorders and even death. 

In contrast, fat burners are mostly made from natural dietary components and produced in FDA-approved facilities.

In a nutshell, here is how these two types of drugs compare for weight loss: 

Fat Burner

Overall rating: 4.9/5
  • Over-the-counter pills 
  • Made from natural ingredients
  • Dietary supplements for human use
  • Side effects are milder and short-lived
  • Promote safe and sustainable weight loss
  • Our tested best fat burners are PhenQ, Instant Knockout, Capsiplex Burn, and Lean Bean


Overall rating: 2.8/5
  • An illegal drug
  • A synthetic steroid-like compound 
  • Approved only for asthma treatment in horses and non-food animals
  • Severe side effects like heart attack, stroke and anxiety
  • Weight loss is merely a result of strong psycho-stimulation
  • A legal and safe alternative to Clenbuterol is available

What Is Clen & How Does It Work?

Clenbuterol is a bronchodilator drug for asthma treatment, used off-label for fat-cutting and muscle gain.

Chemically, it is a sympathomimetic amine that relaxes smooth muscle in the respiratory tract and increases thermogenesis and fat oxidation in the body. Besides that, it slows down muscular degeneration and increases muscle strength. 


So, it is used as a respiratory cure, a weight loss supplement, and a performance enhancer. But this usage is entirely off-label in the USA. That’s because its safety profile is poor, and the FDA does NOT approve its human use, no matter what the case. 

Clenbuterol Pros

  • Quick weight loss due to hyperstimulation
  • Kickstarts metabolism, making stubborn fats meltdown
  • Suppresses hunger to keep calorie intake lower
  • Helps gain lean mass by reducing skeletal muscle damage

Clenbuterol Cons

  • An illegal substance
  • Strictly prohibited for human use by WADA
  • Known to cause severe side effects such as tremors, heart palpitations, cardiac hypertrophy, hyperglycemia, etc
  • It can even be fatal when abused
  • Weight loss results are not worth risking your health

What Is a Fat Burner & How Does It Work?

Fat burners are supplements that increase fat metabolism in your body to help you lose weight faster.

They are made from both natural herbal extracts and synthetic blends. 

Caffeine from green coffee beans and tea extracts is usually the main ingredient. Besides that, these supplements have ingredients that increase thermogenesis (heat production) in the body, leading to faster fat oxidation.

Additionally, many fat burners have appetite-suppressive properties to restrict calorie intake and further enhance weight loss.

A few supplements like PhenQ can even limit the re-accumulation of fats, preventing weight regain.

Fat Burner Pros

  • Reduce hunger sensation to prevent binge eating
  • Prevent random sweet cravings to restrict carb intake
  • Improve fat metabolism naturally
  • Cause only mild and mostly short-lived side effects

Fat Burner Cons

  • Priced higher due to quality assurance and herbal recipes

Clenbuterol Vs. Fat Burner – Product Comparison

Brand Reputation 

As Clen is an illegal substance, no brand can manufacture pills containing this amine for human usage. However, you can buy its legal alternative, Clenbutrol, from Crazybulk, which is an over-the-counter pill. 

This brand is owned by the esteemed sports supplement company Wolfson Brands, which has been producing sports supplements for over 20 decades.

Due to safe, effective, and legally approved supplements, this UK-based organization is now internationally established and supplies products to various countries.

Similarly, fat burner pills are mostly available over the counter and contain ingredients with science-baked safety and efficacy. Reputed brands like PhenQ and Leanbean are often 100% nature-based with no synthetic ingredients.

Key Ingredients 

Fat burners are usually made with herbal ingredients or proprietary blends that are tested for their weight loss efficacy and safety. 

As stimulation is the most effective way to uplift metabolic rates, they have a small number of stimulants like caffeine in them.

Non-stim fat burners usually rely on herbal thermogenics, i.e. compounds that naturally speed up metabolism. On top of that, the best-performing supplements contain appetite-reducing substances (like fiber, chromium picolinate, Innoslim, etc.) that promote satiety and curb food cravings.

Moreover, some fat burners also have muscle-preserving ingredients like B vitamins and growth-promoting amino acids to safeguard your muscles from the degrading effects of dieting.

In contrast, Clenbuterol is itself the active fat-burning agent that jumpstarts metabolism through psycho-stimulation.

Dosage Regimen

Clenbuterol cannot be used regularly due to its high stimulating potential, so it is cycled with some days or weeks off in between. However, you can get similar results from OTC Clenbutrol with a daily dose of 3 pills about 30 minutes to an hour before your workout session.

Fat burner pills also work best when taken daily. Usually, the daily dosage is from 1 to 6 pills. For instance, the recommended dosage for most popular fat burners is as follows:

PhenQ2 pills daily (2 servings)
Leanbean6 pills daily (3 servings)
Instant Knockout4 pills daily (4 servings)

Fat burner brands are better reputed and GMP-certified to manufacture human dietary supplements.

Also, their ingredients are natural and safe enough to be used daily instead of requiring a complex cycling routine to avoid side effects.

PhenQ CT

Fat Burner or Clenbuterol – What Is Best For Weight Loss?

Clenbuterol Triggers Quick Fat Loss With Higher Stimulation

User experience suggests that you can lose weight faster with Clenbuterol than with OTC fat burners because it is a highly potent sympathomimetic drug. And sympathomimetic compounds can cause quick fat loss. 


Because these compounds mimic the actions of natural SNS neurotransmitters.

Now, SNS neurotransmitters are naturally released in stress response, and,

  • Make you feel alert,
  • Subside hunger,
  • And increase energy production in your body

And as Clen is more potent than natural neurotransmitters, its anorectic and thermogenic effects are also stronger.

Fat burner pills also induce the same response owing to their caffeine content. But their stimulation effects are less intense than Clen, so the weight loss is slower, and it usually takes 3-4 months for a significant result.

However, if you intend to cut down faster, and a fat burner does not seem like something that would work efficiently for you, I’d suggest you opt for non-steroidal Clen by Crazy Bulk.

It contains potent but natural herbal extracts like bitter orange and garcinia, which bring about the same benefits as the banned Clen but without severe side effects.

Clenbuterol Overrides Nervous System For Anabolism, Fat Burners Don’t

Clen is used in bodybuilding to cut fats while preserving muscle mass. 

Research shows that Clen has a protective effect on muscles and safeguards against muscular atrophy.

Plus, prolonged usage results in the enlargement of muscle fibers and increased protein and RNA synthesis. So, the overall lean mass increases, as confirmed by the American Journal of Physiology.

However, the safety concern remains as these effects result from SNS overstimulation through beta-2 receptor activation.

Conversely, fat burners like PhenQ and Lean Bean also support muscle growth but with non-stimulatory, safer ingredients. 

PhenQ works alike for both men and women, but Lean Bean is formulated to help women, in particular, grow leaner and stronger.

See how these two measure up against each other here.


Clen uses overstimulation to cut fats and help you lose extra pounds, but OTC fat burner pills provide similar fat-burning (though gradual) effects with natural and health-friendly ingredients.

PhenQ CT

Clenbuterol and Fat Burner Side Effects – What Is Safer?

Side Effects of Clenbuterol

Overstimulation from synthetic drugs like Clen overburdens your body systems, resulting in serious side effects.

The common ones are jitters, headaches, and insomnia.

Cases of palpitations, tremors, increased heart rate, chest pain, high blood pressure, anxiety, and heart attack are also reported.

A 2023 review in the International Journal of Legal Medicine confirms that Clenbuterol abuse can even cause death.

To prevent these adversities but still get a chiseled, muscular body, I would yet again suggest opting for legal and safe Crazy Bulk’s Clenbutrol. 

Clenbuterol For Women Side Effects

Some women bodybuilders use Clenbuterol for cutting and muscle growth as it has no “manly” side effects like excessive hair growth. 

Nonetheless, its adverse effects on the cardiac system and mental health are the same for males and females, as confirmed by user experience.

Side Effects Of Fat Burner

Fat burners’ most common side effects are gut issues like nausea, stomach ache, bloating, diarrhea, constipation, gas, etc.

If you are caffeine-sensitive or your supplement contains a high caffeine content, you may experience sleep issues, headaches, and anxiety. But the good news is most of these issues subside as your body gets accustomed to herbal thermogenics. 

For instance, most PhenQ side effects are gone within about 2 weeks of starting the supplementation.

Or you can opt for stim-free fat burners like PhenQ PM or Lean PM to avoid caffeine-related side effects altogether.


Side effects from fat burner products are usually mild and easily tolerable by most. On the contrary, Clen’s safety profile is poor, with reports of tremors, heart attack, and stroke.

PhenQ CT

Clenbuterol or Fat Burner – What Is Budget-friendly?

Clenbuterol – Where To Buy & Price

As stated above, Clen is not approved for humans in most countries.

So, it is not sold legally, however, you can buy the health-friendly Clenbutrol from Crazy Bulk’s official website for $64.99. Or avail their ongoing discount which offers a bundle of 3 clenbutrol bottles for the price of 2.

Clenbutrol small banner

Fat Burner –  Where To Buy & Price

Fat burners are available from the brands’ official websites and sometimes through official Amazon and Walmart stores as well. 

The price ranges from $40 to $80 for 1 month’s supply, depending on the ingredient’s profile and quality. So, you can expect the most effective ones to be a bit costly.

But the good thing is usually these products also have a 100% money-back guarantee if you don’t get the desired results.

For example, PhenQ costs $69.99 per bottle but with a full refund promise. 

Other quality fat burners like Instant Knockout are priced at $65.99, Lean Bean at $59.99, and Capsiplex Burn at $64.99.


You can not legally buy Clenbuterol, but fat burners are easily available from official websites and local grocery stores.

These weight loss pills come in different price ranges and often include price discounts with bulk purchases.

PhenQ CT

Clenbuterol and Fat Burner – Customer Reviews

Clen Reviews

User discussions about Clen mostly revolve around how harmful this substance has been to them.

For instance, this Reddit thread includes the experiences of a dozen clenbuterol users complaining of different side effects. 

MrGainzzzz called it the worst decision and toxic to the heart, jimmyjamespresents wrote he got atrial fibrillation, and others complained of insomnia and tremors.

clen review

Sandra Odo’s Quora comment proves that Clenbuterol for women is not a safe deal. 

She reported cycling on Clen normally, but once she increased the dose, palpitations were so intense that she felt like having a heart attack. So, she rushed to emergency.

sandra clen review

Fat Burner Reviews

User feedback proves people get similar weight loss results from fat burners as with Clen. But with a lot less side effects.

For example, see this PhenQ Trustpilot review from Suha Ahmed, who used PhenQ to shed the extra 10 lbs on her body. 

And the fat burner fulfilled its promise. It curbed her appetite, gave her energy, and boosted her metabolism. And all that without any side effects. That’s why she keeps recommending it to her friends.

suha ahmed phenq review
  • Richard reported in his trustpilot review that Instant Knockout’s fat burner pills work great for weight loss as he has lost up to 3 stones (42 pounds) in 3 months.
instant knockout review
  • Amy Conroy, a Lean Bean user, shared that she has been using this fat burner for over 2 years to help her with binge eating. And she highly recommends it to everyone as it didn’t cause her any undesired effects despite using it for so long.
leanbean review


Is clenbuterol legal?

No, Clenbuterol is illegal for human usein USA. It is also internationally banned by WADA (the World Anti-Doping Agency).

How much weight can you lose with clenbuterol?

According to an estimate, Clenbuterol helps you shed 6-8% of your body weight in 8 weeks.

How much weight can you lose on clenbuterol in 2 weeks?

Average weight loss with Clenbuterol in 2 weeks is 9-11 lbs.

How much fat does clenbuterol burn?

On average clenbuterol burns about 8% of your body’s fat within just 2 months.

Verdict: Does Clenbuterol Or Fat Burners Work Better?

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