The best fat burner consists of two ingredients: ephedrine and caffeine, also known as the EC stack. The EC stack is also probably the cheapest & best fat burner that you will ever find on the market. The reason that the EC stack is the best fat burner is because it works, and it works very well.

The combination of Ephedrine + Caffeine generates thermogenic boost in your body
What is Thermogenic fat burners?
Many fat burners on the market these days use the words “thermogenic” or “thermogenic fat burning effect” on their ad campaigns or on the product label. Most of these fat burners do not even create a thermogenic effect, and they aren’t thermogenic fat burners!
Thermogensis is accomplished using ephedrine and caffeine. The body temperature increases, fat begins to burn, and metabolism increases. Which means, essentially the body becomes a fat burning incinerator.
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Ephedrine & Caffeine are like Couple
Ephedrine and caffeine work together, but one does not work well without the other! Fat burners on the market today cannot contain ephedrine and caffeine, because ephedrine cannot be sold as a “supplement” (except Canada). What we are left with are fat burners that contain caffeine, green tea, and other semi-useful ingredients – nothing compares to the effect of ephedrine and caffeine.
Similar effects to EC
Some Fat burners on the market today are claiming to have “similar effects to EC” – it can be found on their labels, marketing campaigns, ebay, Amazon, and on Facebook fan pages, etc.
What this means is that they are trying to market their products fat burning potential off how awesome the EC stack is. So, what ends up happening is that people will buy this fat burner expecting to get similar results to that of an EC stack, but their results will fall short.
Most people do not know that they can simply buy ephedrine, use it with caffeine, and get better results than any fat burner on the market. Ephedrine is sold as a nasal decongestant, and it’s very cheap. Caffeine pills are also very cheap.
The EC stack IS the best fat burner.
Today’s Fat burning supplements simply cannot compete with the effectiveness of the EC stack. If the day ever comes that ephedrine can be used in supplements again, then there will be some AWESOME fat burners on the market. Until then, just buy each product (ephedrine & caffeine) individually. Clenbutrol is one of the good EC fat burner.
What is ECA stack
Ephedra + Caffeine + Aspirin stands for ECA stack
Ephedrine:
Ephedrine HCL is the core of this effective fat loss stack. It is very effective at increasing energy, burning fat, suppressing appetite, increasing metabolism, and even relieving nasal congestion.
Ephedrine HCL stands for ephedrine hydrochloride. Basically ephedrine hcl is the synthetic version of ephedrine.
Did you know that horse asthma drug Clenbutrol is popular among body builders? See this
When stacked with caffeine, ephedrine is even more effective because when these two ingredients are stacked together it creates a thermogenic environment within your body which is ideal for burning fat. The great thing about the ECA stack is that it targets fat and not muscle. It is in fact retains lean muscle mass! (A key point for bodybuilders).
Caffeine:
Caffeine is not super effective on its own but once it is stacked with ephedrine it becomes a crucial ingredient in the most potent fat loss stack on the market.
Like ephedrine, taking enormous amounts of caffeine can become dangerous, so stick to the proper dosing protocols. Caffeine is generally legalized and non-regulated in most places.
Aspirin:
This baby could be a mood spoiler between couple!
From what I have researched, it seems that the logic behind adding aspirin to the stack has to do with thinning out the blood so that more fat cells get burned up. Personally, I know people who used the ECA stack and the EC stack (without aspirin) and I have noticed absolutely no difference in the effectiveness.
So, in conclusion I really don’t think aspirin is a needed addition to make this stack effective. The most important ingredients are the two core components:
ECA Dosing:
- First Week: 8 milligrams of ephedrine hcl + 200 milligrams of caffeine, three times per day
- Second Week: 16 milligrams of ephedrine hcl + 200 milligrams of caffeine three times per day
- Third Week: 6: 24 milligrams of ephedrine hcl + 200 milligrams of caffeine three times per day
- Fourth Week : Rest and avoid stimulants.
Conclusion:
The ECA stack used to be a super effective and safe fat loss stack. There is no fancy labelled fat burner available on the market that will yield the results that a simple ECA or EC stack will yield. The key is to use your brain and be responsible when taking the stack. If you have any medical conditions, avoid it.
Drink lots of water and eat lots of food and go about business as usual. If you have any side effects or feel like you are becoming dependent on the stack, then perhaps it is time to stop. More weight loss tips
One drug (not approved in US for human) is called Clenbuterol has similar effect of Ephedra. It is a veterinary drug still available, but used by bodybuilder during cutting stage.See similarity & difference between Ephedra & Clen here
Phen375 – Best Fat Burner?
One product which is very closer to ECA stack is called Phen375. It is been around the market since 2008.
So, 10 years latest it is still selling well. Previously it was called Phetamine 375, resembling the popular drug Phentermine. Although, Phen375 did not get FDA ban, it went through several legal & regulatory hurdles in the UK. A slightly modified version of Phen375 is still selling in UK and Europe. Ofcourse, it is not very cheap comparted EC stack. Fenfast also equally good.
Non Thermogenic Fat Burner

CitriThem is the best fat burner which contains 450mg Sinetrol
A French Pharma company has developed a fat burner without thermogenic effect. Which means, the pill does not artificially inflate your body temperature. The patented ingredient is called Sinetrol®, which is extracted from many citrus fruits.
Sinetrol is clinically proven to aid in weight loss, hence approved in the EU. This is perhaps one of the safest fat burner for women too.
The US FDA does not approve any dietary supplements. So, you can assume that it is safe for import until FDA issues import alert. It cost just about $26 per bottle if you take 1+1 free offer.
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