In today’s world, we spend most of our time sitting. You are sitting in a bus/car/train, sitting in meetings, sitting in front of your PC/laptop/tablet and working or you are sitting and chilling with your friends.

At the same time, the composition of our food has also changed from being dominated by fresh farm products to processed food which is ironically not processed well by our digestive systems. As a result, you are now surrounded by people on the verge of being overweight or obese. Even you could be one of them.

As of 2014, a report from WHO states that 1.9 billion adults suffer from obesity. This being the case, the market is now flooded with weight-loss cures, dietary additions, and weight loss supplements in addition to the existing products available already.

One such product is Zantrex Black. Zantrex is the successor to Zantrex Blue and was introduced in 2007 in the market by Zoller Laboratories.

Let us take a look at how it fares in the Zantrex Black reviews.

How does Zantrex Black work

Zantrex Black is an Accelerated Rapid Release Formula, which promises to help you lose your weight and also boost the energy levels in the process.

The product is aimed at fat burning, suppressing appetite and is meant to be taken along with another mainstream weight loss product. The salient feature is the swift action promised along with the boost in the energy levels.

A lot of people have expressed their skepticism on the product, due to the lack of science backing it. However, there are enough positive reviews of the product to award merit on their claim.

Also, there are a lot of studies backing the role of the individual ingredients in Zantrex Black in weight loss and energy booster programs.

The protein and niacin combination in Zantrex Black is the key to its function as a weight loss supplement. Protein helps you build muscle which in turn facilitates the fat burn irrespective of your workout regime’s effectiveness.

Also, Niacin’s action of increasing blood flow boosts your metabolism and helps your exercise routine become more effective.

Zantrex Black Ingredients and How They Work?

The accelerated weight loss supplement is known to be effective in boosting energy levels and accelerating weight loss majorly due to the natural ingredients and their individual actions.

The main ingredients are yerba mate, guarana, trimethyl xanthine (caffeine), damiana, green tea, kola seed, schizo nepeta, black pepper extract, Rhodiola crenulate, Asian ginseng, maca root, cacao seed and black tea.

Green tea is a highly proven dietary supplement for a reduction in weight due to its nature of providing antioxidant ECGCs which have the high-fat burning ability.

Zantrex Black Ingredients

Guarana Seed Extract, Yerba Mate Leaf Extract, Black Tea Leaf Extract, Kola seed extract and pure caffeine (Trimethylxanthine) are all sources of caffeine. These are by nature thermogenic nature that helps increase your body’s temperature, triggering a sudden sense of energy and brain activity. Black pepper also works in a similar way.

Maca Root Extract helps you stop binge-eating or stress-eating by increasing the release of the happy hormone dopamine from your brain and improving your mood. The damiana leaf extract is also known for the similar function.

One of the oldest ingredients used to regulate blood flow, Asian Ginseng root helps supply more nutrients and oxygen to your muscles when you work out. The Rhodiola Crenulata Root Extract and Cacao Seed Extract helps burn fat, relieve anxiety and reduces the production of fat cells respectively.

Schizonopeta flower extract is the only ingredient that does not have a direct relation with weight loss or energy level boosters; it is an ingredient that is commonly used to treat common cold, sore throat or skin diseases.

All the Zantrex Black Reviews attribute its effects to the effectiveness of these above mentioned individual ingredients only.


Zantrex Black dosage

As per the manufacturer’s recommendations, the ideal dosage for Zantrex Black is two capsules or soft gel that is taken at about a quarter hour before the main meal.

Since it is also an energy level booster in addition to being a weight loss supplement, you can take one or two capsules as and when you see the need for it. The only thing to be kept in mind in that you should not exceed six capsules in a day.

Also, as the ingredients of Zantrex Black have a lot of caffeine content, you will do good to avoid any other forms of caffeine when you are taking the Zantrex Black capsules. For the same reason, Zantrex Black took too close to bedtime also has the potential to spoil a good night’s sleep.

Advantages and disadvantages

Any product that promises instant weight loss or high energy needs to be looked at twice. However, you should think twice before using such product because there might be a lot of hidden disadvantages.

So, let’s take a look at the pros and cons of Zantrex Black.


  • A major advantage of Zantrex Black is that the product is cheap and affordable to masses.
  • Also, judging by most of the customer reviews and the popularity of the product it is quite effective both in terms of providing instant weight loss and also improving your energy levels.
  • It has been quite successful in appetite suppression also.
  • One of the major highlights of the product is its use of natural ingredients. In this day and age, when you fear any chemical product due to side effects, Zantrex Black is a welcome change.
  • Zantrex Black also improves your metabolism thus helping the fat burning process in a speedy manner. As a result, you will be more active, and your workout regimes will have a better result.


  • Like every coin has a flip side, the list of disadvantages for Zantrex Black is also a little bit concerning.
  • The product label lists the ingredients however it fails to mention the composition or the percentage of each ingredient in the mix. This can be a cause of concern since a majority of the ingredients are caffeine based which may not be suitable for everybody especially people with heart problems.
  • The high caffeine content which is indicated by the rapid energy boosting properties is also troubling due to the fact the large amounts of caffeine can lead to high blood and heart complications over a period of time.
  • There also have been instances where side effects such as stomach ache, dizziness, skin flushes and dizziness have been reported.

Customer reviews and Negative side effects

Products like Zantrex Black can only stand the test of time if the customers like it and find it effective. The market is already filled with so many weight loss products hence the quick action and energy boost is what makes the customers try this product.

Since the product is available online and has a presence in several online portals, you can easily check out its reviews. For example, Zantrex Black has a rating of 3.3 stars out of 5. Out of the 256 reviews, the product has 119 positive reviews.

This is a good majority, but the trouble begins when you notice that 5-star rating and 1-star rating is almost same in percentage.

A customer who rated the product 4 stars says, “Does a decent job of appetite suppressant. Lots of long lasting energy. I haven't lost any weight, but I got mainly to stop munching on junk at work while staying awake.” Another user mentions getting hot flashes after taking Zantrex Black but agrees to lose weight.

Also, the customer who was happy with the product have all raved about the energy boost it gives them but also mentioned that this is to be considered only as a weight loss supplement along with proper exercise and eating habits.

The negative reviews mostly speak about no effect on them in both the weight loss and energy boost while some mention the side effects of sweating, hot flashes which made them discontinue the product.

The thing to be noted here is that Zantrex manufacturers do warn you about the side effects and also list the ingredients that have gone into the product. Hence, it is advisable to try out the product and stop if there are any adverse effects.

The major side effects in Zantrex Black are due to the presence of caffeine along with Niacin. High caffeine content ends up giving you restlessness, sleeplessness, palpitations, racing heartbeat along with jitters in certain cases.

Niacin also makes your skin red and gives you a burning feeling called as the Niacin flush. Though it typically lasts only for a small time, you may find it uncomfortable and unpleasant if it happens on a regular basis. Some people also get skin allergies as a reaction to Niacin.

Though the side effects can be mild in nature, it is better to be informed about it before making a choice.

How quickly can you see results?

Though Zantrex Black has been called to an accelerated weight loss supplement, there is no specific timeframe mentioned in the official catalog or any study for us to determine when the product is supported to start working.

Going by the Zantrex Black reviews, you can start experiencing the energy boost and weight loss as soon as three days, or you may have to even wait for a month before you start feeling the effects of the product.

The time taken for the product for the product to work has been typically a week to 15 days as per the reviews; however, there is no guarantee at all in this regard.

Where to buy

Zantrex Black can be bought in a number of ways such as offline stores like Walmart, Target, etc. or online websites such as or the product site for Zantrex Black.

The product is available in a bottle which contains 84 soft gels or capsules which are priced at 25$. The prices are quite uniform across the merchants hence you can choose the path based on convenience.


Obesity has become a social problem now. The world health organization has termed to be a leading cause of death in the world. There are a lot of products in the market right now that promise weight loss, faster metabolism rates, etc. to make you believe that their product is the right and best first for you.

Zantrex Black is one such product. It is marketed as an accelerated weight loss supplement which has the advantage of boosting your energy levels.

The product achieves this in most cases due to its high caffeine content and other natural ingredients which are known for their properties of improving metabolism rates, oxygen supply to blood, etc. It is a decent product with an average rating of 3.3 in most consumer websites and also a lot of success stories. The natural ingredients also make a welcome change in this chemical-influenced world.

However, as per the Zantrex Black reviews, the Niacin content and caffeine content signify problems if you are sensitive to either of these ingredients. Additionally, the fact that there are no clinical studies backing the product and there are side effects also being a report in the reviews should make you think twice before choosing this.

Having said that, the ideal thing to do is to order the product and try it for a few days after consulting with a physician who knows your medical history and can advise you on allergies and potential side effects. If the product does not work, you have the cushion of returning and availing the 30day return policy benefits.