Zantrex Black Review – The Best Zantrex Yet?

Rob Miller | February 21, 2018
Product Reviewed: Zantrex Black
| 3 OUT OF 5 | Review by: |

Home » Fat Burners » Zantrex Black Review – The Best Zantrex Yet?

#1 Rated - Instant Knockout

Instant Knockout is actually a new fat burning supplement I just came across, and got great results.

Click Here To Learn More »

#2 Rated - LeanBean

LeanBean Female Fat Burner is the BEST fat burner for women we\'ve ever tested. Read our review here.

Click Here To Learn More »


Side Effects
Pros and Cons
Where to Buy
User Reviews

Zantrex Black Overview

Zantrex is a very popular, yet controversial weight loss supplement made by Zoller Labs.

First there was the original Zantrex 3 in the red bottle.

Then there was Zantrex Blue which was the company’s answer to complaints of side effects caused by original.

Now there’s Zantrex Black, the Accelerated Rapid Release Formula.

All three of the products in the line have the same stated goals, which are to burn fat, decrease appetite, give you energy, and help you lose weight.

But they each approach it in a different way.

We’ve reviewed Red and Blue in the past. We’ve even compared them.

So this time, we’re primarily dealing with Zantrex Black.

Zantrex Black, as stated above, is the option for people who want a fast acting weight loss supplement that they can use in conjunction with any sensible weight loss product.

The focus is on the quickness of both the initial energy boost, and the weight loss.

So if you’re looking for instant gratification, Zantrex Black is the one to choose.

Zantrex Black Ingredients and How They Work

Of course, the most important factor in whether or not a supplement works is the formula, so let’s get right to it.

The Zantrex Black formula includes:

  • Protein which is crucial for weight loss.

    Protein is what builds muscle, and the more muscle you’ve got, the more rat you burn, whether you’re hard at work or at rest.

  • Niacin which increases blood flow.

    It’s actually known to sometimes cause a warm “niacin fliush” where your skin gets a little red and tingly from the blood rushing through the blood vessels behind and

The Zantrex Black Proprietary Blend which provides several sources of caffeine including:

  • Green Tea which also provides fat burning, antioxidant ECGCs which have been shown to burn fat.

  • Guarana Seed Extract
  • Yerba Mate Leaf Extract
  • Black Tea Leaf Extract
  • Kola Seed Extract
  • Trimethylxanthine (which is the chemical name for pure caffeine).

And other ingredients including:

  • Maca Root Extract which increases the release of dopamine from the brain.

    This improves mood and motivation to curb emotional eating.

  • Asian Ginseng Root which also improves blood flow to supply more nutrients and oxygen to your muscles while working out.

  • Damiana Leaf Extract which elevates mood and suppresses appetite.

    It may also inhibit the conversion of testosterone to estrogen.

  • Schizonepeta Flower Extract which is commonly used for colds and sore throats, but doesn’t seem to have a connection with weight loss that I’ve been able to find.

  • Black Pepper which helps increase thermogenic activity in the body.

  • Rhodiola Crenulata Root Extract which relieves anxiety and helps burn fat.

  • Cacao Seed Extract which can reduce the production of fat cells.

Here’s a quick look at the label:

Zantrex Black Ingredients

Clearly, the formula is very caffeine heavy, but because it’s all couched within a proprietary blend, we don’t know any real numbers or actual amounts.

The whole blend totals 1,160 mg, and about half the ingredients are basically caffeine, but since they don’t reveal the amounts, we don’t know how much there really is.

Given that this is a Zantrex product, famous for being pretty speedy, my guess is it’s a lot.

zantrex black reviewThe recommended dose is 2 softgels taken about 15 minutes before main meals.

You can take 1 or 2 as needed for energy, but it is not recommended that you take more than 6 in one day.

There is also a recommendation that you avoid additional caffeine when taking Zantrex Black.

I would also add another caution against taking Zantrex Blacktoo close to bedtime.

I would imagine it would interfere with a good night’s sleep.

Zantrex Black Reviews

Next to the formula, which we now know is extremely stimulant-heavy, the second most important factor in determining whether or not Zantrex Black is any good is what kind of feedback it gets from actual customers.

Since Zantrex Black is sold at, there are dozens of reviews to look at, and the opinions are widely varied.

There are almost as many 1-star reviews as there are 5-star ones.

First here are a couple of the raves:

Zantrex Black 5 Star Review 1

Zantrex Black 5 Star Review 2

Zantrex Black 5 Star Review 3

And here’s some of the feedback from unhappy customers:

Zantrex Black 1 Star Review 1

Zantrex Black 1 Star Review 2

Zantrex Black 1 Star Review 3

As of this update, we actually have about 37 customer reviews posted below, and the vast majority reflect those on Amazon.

Something important to make note of in the reviews is that even people that like Zantrex Black mention the side effects.

It’s mainly a matter of degree of tolerability that determines whether or not the reviews are good or bad.

There seems to be little question that Zantrex Black can increase your energy, and that’s the primary benefit users talk about.

But for some, the side effects are too much.

Zantrex Black Side Effects

There’s a lot of caffeine in Zantrex Black, so anyone who’s sensitive to the stuff should beware.

If you want to avoid jitters, a racing heartbeat, and sleeplessness, you may want to start out with just one pill at first.

That way, any side effects you do face will be mild and hopefully won’t last as long.

You’ll also want to stay away from additional sources of caffeine, such as coffee and soda.

The other common side effect is known asThe Niacin Flush.

The Zantrex Black formula has 30 mg, which is 150% of the daily recommended amount.

This much niacin often makes your skin red and makes you feel like your skin is burning up.

The feeling should only last a few minutes, but it can be very unpleasant, and even a little scary for some people.

Some users expect it, and just let it happen, knowing it will pass.

For others, it’s too uncomfortable and turns them away from the product altogether.

Zantrex Black Pros and Cons

Advantages of Zantrex Black

  • It’s affordable.

  • Just about every Zantrex Blackreview from a customer that I’ve seen says it works as a great appetite suppressant.

    Most people say it practically eliminates their appetites.

Disadvantages of Zantrex Black

  • It’s got a boatload of caffeine, though we don’t know exactly how much because each of its caffeine sources are included in the proprietary blend that doesn’t offer amounts.

  • Lots of people get side effects like stomach aches, headaches, and dizziness.

  • You need to eliminate other sources of caffeine while you’re taking it.

Zantrex Black Compared With Zantrex Red and Zantrex Blue

Almost nobody questions whether or not each of these products woks for energy and appetite suppression. They all work. So we move on to side effects.

People who are sensitive to stimulants will have about an equal (and not pleasant) reaction to the Red and the Black. And they both work very well.

Zantrex Blue works as well, but seems to come with fewer problems.

Where to Buy

You can buy Zantrex Black in stores  like Walmart, Target, and CVS or online directly through the product site or through sites like

A bottle of 84 softgels sells for about $25 or less depending on where you go.Prices don’t vary too much so where you choose will come down to a matter of convenience.


Zantrex Black works.

But anyone who doesn’t react well to caffeine or isn’t fond of the jittery feeling that certain stimulants cause will not feel good taking Zantrex Black.

Even for people who don’t mind the feeling, I would recommend you treat Zantrex Black as a short term supplement to boost your efforts or push you through a stubborn plateau.

It’s not the kind of supplement you want to be taking month after month.

And if you do decide to try it, do so with caution.

Start with just one pill so you can experience any side effects more mildly. Be prepared for the Niacin Flush.

Drink a good amount of water and wait it out.

It shouldn’t be long, then you’ll be left with the energy and appetite suppression you’re looking for.

Have You Used Zantrex Black?

Leave Your Review Below

Our Top Choice For Fat Burners – Instant Knockout

instant knockout reviewInstant Knockout is a revolutionary formula thats designed to not only boost energy levels, but also help to burn body fat.

This supplement can easily help to not only rid your body of that excess fat, but also boost your metabolism.

We tested a one month supply to determine it’s effectiveness, and the results shocked us.

Click here to learn more in our official review.

How People Found This Review:

and zantrex black, and zantrex black reviews, and zantrex black side effects, and zantrex black results, and zantrex 3 black, and Zantrax Black

User Reviews

The best!

5 out of 5 stars
Jul 07, 2015 by 

I have been taking this product for about a month.I take one when I wake up around 8am,and another at aaround 3pm.


It decreases my appetite,gives me energy,and with alot of water and walking have successfully lost 21 pounds.I have had no side effects so far.


Bit I do HIGHLY recommend this to people who want to lose weight.

Was this review helpful to you?
132 out of 137 people found this review helpful.

No snacking, no jitters, lots of energy

5 out of 5 stars
Sep 11, 2014 by 




Was this review helpful to you?
86 out of 87 people found this review helpful.

The worst

1 out of 5 stars
May 05, 2015 by 

I took zantrex black for 2 days and it was going great.The 3rd day.....


not so much.I took my 2nd dose of 2 caps.


With in 10 minutes my face, neck, and cheat was on fire.Followed by the shakes, light headed, chest pains, and trouble breathing.


My wife called 911. The firefighters took my BP and heart rate.My BP was 191/189 PULSE of 180.


Went to the er and given many meds for high BP and heart rate.After 2 hours it was back to normal.


In my opinion it is not worth your life! This was a very scary moment for me.Note... i am a 25 year old male and weight 215 with NO health problems.


Some people do just fine on these pills while others do not.Just be careful and pay attention to your symptoms if you begin to get "flush" or start burning.


Was this review helpful to you?
71 out of 88 people found this review helpful.

Drew's Review

4 out of 5 stars
Jun 30, 2015 by 

Today is the second day I'm taking this product.I haven't really taken anything before and I usually don't I take a lot of caffeine except for the occasional coffe or energy drink, so it's hitting me pretty hard.


I've limited myself to two soft gels in the morning and then done for the day.Even so, I am taking this while on the paleo diet and it controls my appetite pretty well.


The only thing I'd complain about is the jitteriness right after taking and the stomach ache that lasts for about a half hour.Other than that, this gives me lots of energy to work with considering I tend to get unmotivated.


Was this review helpful to you?
55 out of 62 people found this review helpful.


4 out of 5 stars
Dec 02, 2014 by 

I have taken Zantrex Black for 3 days and have seen a significant change! I did have the Niacin Flush the first day but it didn't bother me.I probably would only use this to get over a plateau and not all the time due to the caffiene.


Worked amazing for right after Thanksgiving!

Was this review helpful to you?
52 out of 56 people found this review helpful.

Ask A Question

Your First Name

Your Email

Your Question

User Questions and Answers

i took the first dose of Zantrex black which is 2 pills 15min before breakfast. I experienced the flushing, but that went away. Now I'm feeling terrible nausea. When will that feeling stop? And what should I do about it? Please help. -

Zantrex pills are very strong.  Try taking one pill at a time instead of two, and make sure you drink plenty of water. If you still feel nauseous, you should discontinue use.- Rob

Was this question helpful to you?
13 out of 15 people found this question helpful.

What stores sell Zantrex Black? -

You can find this supplement on the shelves of many brick and mortar stores like GNC, Walgreens, Walmart, and many others.- Rob

Was this question helpful to you?
9 out of 12 people found this question helpful.

I am celiac, is zantrex black gluten free? -

All of the ingredients within Zantrex Black are gluten free; however the manufacturer does not claim to be a gluten free facility.- Rob

Was this question helpful to you?
8 out of 12 people found this question helpful.


Cut your dose in half, take it with a meal, and make sure you continue to drink plenty of water.  If that doesn't change things, you may have to switch to something with fewer stimulants.- Rob

Was this question helpful to you?
6 out of 8 people found this question helpful.

Is zantrex3 red testosterone booster? -

It's a fat burner/weight loss supplement.- Rob

Was this question helpful to you?
1 out of 1 people found this question helpful.

Author: Rob Miller

Rob Miller founded over 2 years ago, and has been the chief editor ever since. Originally, he founded the blog to help research various mens health supplements on the market. Today, has grown to one of the largest men's health and fitness products review sites on the internet. Rob currently resides in the south beach section of Miami, with his girlfriend of 2 years, and his German shepherd "Max". Follow him on Twitter or find him on Google +.