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Introduction

Zantrex claim that their latest innovation “Zantrex Black” utilizes rapid-absorption technology and that it has the ability to produce rapid weight loss results for users – that’s all well and good, but is it actually capable of burning fat?

In this Zantrex Black review, we’re taking a look at the ingredients that make up this product to establish what we believe consumers can realistically expect from it.

Readers please note that statements on this page are fair comment based on observation. This content is produced on a matter of public interest. Statements on this page are our honest opinion.

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What Is Zantrex Black?

Zantrex Black is a weight management product created by a US-based sports nutrition brand named Zoller Labs LLC (trading as Zantrex).

One bottle of Zantrex 3 costs $39.99, contains 84 soft gels and will last users for 14 days based on the directions of consuming 6 softgels per day; it is available via the official Zantrex Black website and Amazon.

Like every product in the Zantrex range, Zantrex Black is a product targeted at those who are looking to lose weight fast. We’re told that the formula is ephedrine-free and that it typically causes 1696% more weight loss per week when compared to those whom are just using diet and exercise alone, though the results and details of the study showing these results are not made publicly available.

Unlike most other diet pills available on the market, Zantrex boast that Zantrex Black uses “rapid release technology” – this statement is referring to the fact the supplement comes in a fast-digesting soft gel, rather than the standard hard capsule.

Does Zantrex Black Work?

Based on our research into this product, we do not believe the product will work exactly as we’ve seen it described. It’s our opinion that there’s a lot of misinformation floating around the internet in regards to this product.

Firstly, we do not believe that Zantrex Black is the “miracle weight loss pill” it’s made out to be. Many of the statements of the official website are very misleading and not approved by the FDA (meaning they lack evidence to prove they’re true). Zantrex claim that their Zantrex Black pills “cause 1696% more weight loss when compared to dieting alone”, however no supporting evidence is given. As this product does not contain any ingredients that directly and independently burn body fat or suppress appetite levels, we feel that this statement is likely fabricated – call it a hunch.

Furthermore, we’re told that the product uses a “fast release formula” for improved results, however this fast release formula is referring to the fact the product comes in a softgel, rather than a hard-shell capsule.

Despite our criticisms, we do think that you’ll be able to use Zantrex Black to lose weight, as long as you take the correct approach to using it and have the correct outlook on the product in general.

Zantrex Black does have the ability to boost user energy and metabolism levels, as well reducing user perception of exertion (meaning it can potentially improve user athletic performance). When used with a calorie restricted diet and exercise, you may genuinely see decent results over a sustained period of time.

The Pros & Cons Of Zantrex Black

Below is a list of everything we think could be looked upon as either a positive or negative:

The Pros

  • Can help boost user energy levels.
  • Product may help improve alertness and focus.
  • Stimulants inside this product may help boost user metabolic rates (depending on their tolerance levels).
  • Comes with a money-back guarantee.

The Cons

  • Product doesn’t contain any ingredients that will directly and independently “burn body fat”.
  • Zantrex misleadingly state the product “causes rapid weight loss”, which alone it does not.
  • The rapid absorption technology provides no significant benefit to the average user.
  • Ingredient amounts are hidden behind a proprietary blend.
  • Unlikely to suppress user appetite levels.
  • Potentially negative side effects are possible.
  • Potentially manipulated Amazon reviews according to Fakespot.
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Zantrex-3 vs. Zantrex Black?

When it comes down to it, both products use the exact same formulation in the exact same amounts. The only difference between the two products is the capsule.

Zantrex Black comes in soft gel capsule, which breaks down faster in your stomach allowing for faster absorption. Zantrex 3 comes in standard gelatin capsules, which may take longer to be broken down and absorbed in the stomach.

So is Zantrex Black worth the extra money? in our opinion no. Having a fat burner that absorbs faster than normal doesn’t really provide any significant benefit in the long run in terms of weight loss results.

What Are The Zantrex Black Ingredients?

We have found the following supplement facts for this diet pill:

Two Capsules Contains: Niacin 30mg, Proprietary Blend 1160mg (Yerba Mate Extract, Guarana Extract, Caffeine, Damiana Extract, Green Tea Extract, Kola Extract, Schizonepeta Extract, Black Pepper Extract, Rhodiola crenulata Extract, Asian Ginseng ExtractMaca Extract, Cacao Extract and Black Tea Extract.

Non-active Ingredients: Soybean Oil, Gelatin, Glycerin, White Beeswax, Soy Lecithin, Purified Water, and Caramel Coloring

Is Zantrex Black Suitable For Everyone?

This product is not suitable for vegetarians, vegans, pregnant or breastfeeding women, or persons under the age of 18.

If you suffer from high blood pressure or heart disease you should speak to your doctor prior to usage.

Ingredients inside Zantrex Black may worsen symptoms of anxiety, schizophrenia and bipolar disorders.

If you have diabetes, ingredients inside this product may complicate blood sugar control.

What Are The Zantrex Black Side Effects?

We’ve compiled the following potential side effects based on the ingredients inside this formula:

  • Nervousness
  • Restlessness
  • Nausea
  • Vomiting
  • Increased heart rate [1]

Note: these side effects are possible but may not be the typical user experience.

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Are There Any Zantrex Black Reviews From Customers?

We have found the following Zantrex Black review testimonials via customers on the Amazon marketplace:

If you’re looking for something that makes you feel jittery and energetic, keep looking. These aren’t for you. These didn’t have much effect on my and I didn’t lose any more weight in the month prior to taking these to the month I took these.

Works for me. I take two capsules in the morning, and two afternoon. The only side effect – a little diarrhea feeling, not diarrhea itself, just the feeling. Also a little tingling on my tong and face lets me know it is actually working. I watch what I eat and exercise – on average loosing 2 lbs per week, not more. I like this product

We ran the product page through the Fakespot software to look for review manipulation, which came back with the following results:

Analysis Overview

  • Our engine has profiled the reviewer patterns and has determined that there may be deception involved.
  • Our engine has determined that the review content quality is low.

Source: Fakespot

Our Final Verdict On Zantrex Black

To conclude our Zantrex Black review, it’s a bit of a mixed bag – there are things that we like about it and things that we aren’t too blown away by. It’s not the worst product in the world for those looking for boosted energy levels, however in our opinion there doesn’t appear to have been much thought put into the formula when it comes to clinically-proven ingredients – Zantrex Black seems to just be a product loaded with miscellaneous stimulants.

Zantrex state that their Black fat burner pills have the ability to produce “rapid weight loss results”, however we do not believe that is the case at all – the only way to see such results would be by using this product with a VLCD (very low calorie diet) and robust exercise regime.. something they fail to make obvious to the average consumer.

Kath Ross, PhD
Kath Ross, PhD
Health Editor & Fact Checker at DietProbe
Kathryn is a Ph.D Health Editor here at DietProbe. She specializes in diabetes and weight control research and in her spare time she's a professional cat lady and wine connoisseur!
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Fact Checked


This article has been reviewed and fact-checked by a certified nutritionist, and only uses information from credible academic sources.