Zantrex 3 Blue Review

Zantrex 3 REVIEW: Is The Blue Bottle Any Good?

Welcome to another review of ours. To help you choose only the best stuff on the market, our team took a look at Zantrex 3 Blue

The in-depth analysis awaits you below, so keep reading find out everything you need to know about this product.

If you are in a hurry, check a quick summary here:


  • Seems good for boosting energy
  • Mostly positive user reviews


  • Formula hidden in a propriatry blend
  • Due to unknown caffeine content, side effects are possible
  • The formula doesn’t seem well-rounded
  • Pretty expensive

Zantrex 3 Blue Review at a Glance:

Zantrex Blue is a pretty expensive weight loss supplement. In our opinion, it doesn’t justify its price. 

The formula is packed with different ingredients, but in no way it stands out. It emphasizes too much caffeine, which may be good for improving energy levels. However, in terms of weight loss, it is below average.

Also, almost the entire formula is hidden in a proprietary blend. Not only this makes determining the effectiveness almost impossible, but also makes us question the safety.

It’s obvious that Zantrex Blue contains a lot of caffeine. How much exactly, we are not sure. This means that some people may experience some side effects.

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About Zantrex Blue

Zantrex is a line of weight loss products. In total, there are three different versions of Zantrex – Zantrex Blue, Zantrex Red, and Zantrex Black

In this review, we focused mainly on Zantrex Blue

To clear any confusion, it’s important to note that this product is also known as Zantrex-3 Blue. It comes in the form of capsules (pills) and claims to help control appetite, increase energy levels, and assist the whole weight loss process.

How well it does it, let’s find out below.


Zantrex Blue Ingredient Analysis

Zantrex 3 Blue Ingredients

Zantrex-3 Blue has a lengthy ingredients list. To be more exact, it has a total of 14 different ingredients.

It consists of 30mg of Niacin and a total of 1160mg of 13 different ingredients mixed in a proprietary blend.

As always with proprietary blends, the manufacturer didn’t state the individual doses of each ingredient. This makes it harder to determine the overall efficiency of the formula.

Keep that in mind as we take a closer look at Zantrex-3 Blue and what the science says.


Niacin is also known as vitamin B3. It is an essential vitamin necessary for good health. You can naturally find niacin in foods such as meat, fish, dairy products, eggs, green vegetables, etc.

Most people who don’t have niacin deficiency don’t need niacin supplementation. You can get it in enough from the food. However, niacin supplementation seems to be effective for normalizing lipid levels in the blood, but only true in high dosages.

Other proclaimed benefits are better cognition and overall longevity. However, the studies done so far don’t support these claims.

You should be careful with niacin supplementation because overdosage could lead to adverse side effects. Also, over time, it can lead to insulin resistance. Which could lead to weight gain (ironically). Therefore, niacin should be taken with caution and according to the recommendations. 

Having said that, the niacin dosage in Zantrex Blue looks safe.

Yerba Mate Extract

Yerba mate is a stimulating tea popular in the Middle East and South America.

It gets the attributes of being effective for weight loss and appetite suppression. It has high caffeine content, which is responsible for its benefits. 

As an appetite suppressor, yerba mate seems effective only in high dosages. For fat burning, it seems equally effective as green tea catechins.

Guarana Extract

Guarana is a seed that has more caffeine than coffee beans. Its supplementation is pretty common because of its stimulatory effect.

In addition to caffeine, it contains catechins too. Since both of these compounds are effective for fat-burning, guarana may support your weight loss.

Trimethylxanthine (Caffeine)

Don’t get baffled by the long name. Trimethylxnthine is just a chemical name for caffeine. 

Since coffee is one of the most popular daily beverages, probably there aren’t too many people who never heard of caffeine.

In addition to being a mental stimulant, caffeine boosts physical performance and endurance. Current data suggests it may even support weight loss and appetite control. 

Damiana Extract

Damiana Leaf is a plant that has been traditionally used as an aphrodisiac. But for now, no quality evidence supports any of its use. 

Honestly, we are not entirely sure how Damiana Extract should contribute to Zantrex Blue’s formula. 

Green Tea Extract

Green tea is a healthy herb full of natural antioxidants. Most often, people consume it as a beverage. However, it is a popular supplement as well.

Out of the all active compounds in green tea, the most potent are catechins. The studies show that some catechins have fat-burning properties – these are EGCG.

However, even though EGCG molecules may improve lipid oxidation, they are effective in high dosages only. Also, EGCG seems to be less effective in people who regularly consume caffeine. For some reason, daily caffeine use could negatively impact their fat-burning effect.

Kola Extract

Kola Extract is derived from a kola tree nut. In the past, Kola was frequently used in weight loss products and over-the-counter (OTC) stimulants. Most of its benefits are due to its high caffeine content.

Schizonepeta Extract

Schizonepeta Tenuifolia is a herb that has anti-inflammatory properties. Traditionally it was used in the Far East for treating common colds, head colds, and allergic skin reactions.

Black Pepper Extract

Black Pepper is a source of molecule piperine, which improves absorption rates. As such, it comes alongside many supplements to improve their efficiency.

Rhodiola crenulata Extract

Rhodiola is a herb with adaptogenic properties. It is effective for reducing fatigue and exhaustion. Also, it may reduce the feeling of “burnout” due to prolonged stressful situations.

Rhodiola may help reduce fatigue from exercising as well.

In studies on rats, it helped reduce binge eating induced by stress too. So it might be a great compound to help you stick to a diet. However, this benefit still needs to be confirmed by human studies.

Asian Ginseng Extract

Ginseng is a herb that may improve mood, support the immunity system, and enhance cognition. Also, some proclaimed benefits are testosterone boost and enhanced physical performance.

Maca Extract

Maca is a herb traditionally used as an aphrodisiac. According to studies done so far, it seems effective for improving libido. 

The mechanism behind it is not entirely clear yet. But generally speaking, it has nothing to do with managing hormones. So in that regard, maca doesn’t positively influence testosterone and estrogen as it was thought before.

Cocoa extract

Cocoa extract is rich in polyphenols which have an antioxidant effect and improve circulation. Also, it contains theobromine and caffeine, so it may offer some cognitive benefits as well. 

Black Tea Extract

Black tea comes from the same plant as green tea. The difference is that green tea doesn’t get exposed to moisture and air as black tea does.

Moisture and air lead to oxidation, which changes the color of green tea and turns it into black tea.

So basically, green tea and black tea are almost the same. Oxidation slightly affects their chemical composition, but the majority of their active compounds are pretty much the same. This means that their benefits are similar too. 

These include improved energy levels due to caffeine and protection from oxidative stress due to antioxidants.

Our Commentary on Zantrex Blue’s Formula

To begin with, we have to address the fact that Zantrex-3 Blue contains a proprietary blend

If you are unfamiliar with the term, proprietary blend is when the manufacturer hides the individual doses of each ingredient. This means you can see the ingredients in the formula, but not how much of each ingredient there is.

In the case of Zantrex-3 Blue, almost the entire formula is hidden. Only the amount of niacin is stated, while the rest of the 13 ingredients are mixed into an 1160mg blend. That’s about all that you can find out about their dosages.

For obvious reasons, a proprietary blend is not something you want to see in your supplement

For starters, hidden doses don’t allow you to properly evaluate the formula and its efficiency. The doses may be fine, but also may not. You cannot know for sure. That’s why the transparent formula is something you should always look for.

Secondly, some manufacturers may use risky ingredients that can cause potential side effects. And without the knowledge of the doses, the product may not be entirely safe. 

In terms of Zantrex Blue, it doesn’t contain any dangerous ingredients. 

However, it contains caffeine in unknown amounts. For most people, caffeine shouldn’t be the issue. But some people are more sensitive to it, which could lead to side effects. That said, we advise caution with this product if you are sensitive to caffeine.

What about ingredients in general? Are they any good?

As we already said, Zantrex Blue contains a total of 14 ingredients. However, there isn’t a lot variability in the formula as you would expect. 

It may contain a lot of ingredients, but they all act very similarly.

For example, almost all of the fat-burning and energy-boosting ingredients are based on caffeine. So in that regard, the formula is not that comprehensive.  

Zantrex Blue contains other ingredients as well. However, the fact that almost the entire formula is hidden in a proprietary blend makes it almost impossible to determine whether this product is any good. Either for weight loss, energy, or mood elevation.

How to Use Zantrex Blue

For weight loss, take two (2) Zantrex-3 Blue capsules with a glass of water. Take the product 15 minutes before the main meal. 

For an energy boost, take 1 or 2 capsules when needed. Do not take more than 6 capsules in a single day. 

For the best results, use Zantrex Blue in conjunction with a proper diet and exercise. 

Zantrex Blue Side Effects

Zantrex-3 Blue contains unknown amounts of caffeine. As a result, we advise caution to people sensitive to stimulants. The doses may be really high without your knowledge. 

According to the user reviews online, some people experienced the following side effects: 

  • anxiety
  • nervousness
  • restlessness
  • digestive issues
  • “Niacin flush” – red skin, feeling hot, itching

Testimonials & Reviews

Zantrex-3 Blue is pretty well-received among customers and people generally seem happy with it. Accordingly, it got 4.2 out of 5 on Amazon.

The majority of people who rated it negatively complained about having side effects.

Pricing & Where To Buy

On the official Zantrex website, the Zantrex Blue 84ct (count) bottle sells for $39.99. 

According to the official website, you can buy also buy Zantrex products at:

  • Amazon
  • Walmart
  • Target
  • Kohl’s
  • Walgreens
  • Rite Aid Pharmacy
  • CVS Pharmacy.


People seem generally happy with Zantrex Blue, especially when it comes to boosting energy. This doesn’t surprise us because caffeine plays a big role in Zantrex Blue.

On the other hand, caffeine is also one of the main fat-burning compounds in Zantrex. Sure, Zantrex Blue contains green tea catechins as well, but they are effective in high dosages only. And because of the proprietary blend, we are kind of suspicious if the dose is potent enough.

All in all, as a weight loss pill, Zantrex Blue seems average. 

The fat burning effects depend too much on a single compound (caffeine). Caffeine indeed can promote your metabolism and appetite suppression, but the formula doesn’t seem well-rounded. 

The fact that almost the whole formula is hidden in a proprietary blend further ruins our impression. Frankly, for that price, we expected much more.

We’ve found Zantrex 3 Blue to not be the worst weight-loss option. But it is pretty pricey and according to the formula, we wouldn’t expect astonishing before & after weight loss results. We’ve definitely seen better fat burners, but Zantrex Blue can serve you well for energy.

Here’s our final score of Zantrex 3 Blue by categories:

Fat Burning 2/5
Appetite Control3/5
Energy & Focus4/5
Ingredient Quality2/5
Zantrex 3 Blue: Ratings by Category

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