Updated: 01/10/2018

Zantrex Black Review - 6 Things You Need to Know


Why are people talking about Zantrex Black? We wanted to know, so we decided to take a closer look at the ingredients, side effects, customer service and clinical research. Furthermore, we examined hundreds of user comments and reviews. Then, we refined and condensed to give you the info you need.

Zantrex Black Readers: Click here to find out why we're giving away samples of our product, Burn HD.

What is Zantrex Black?

First off, Zantrex Black ingredients are:

Zantrex Black also contains kola seed, schizonepeta, black pepper extract, rhodiola crenulata, Asian ginseng, maca root, cacao seed and black tea. [1] [2] The rapid-release fat burner promotes weight-loss by boosting energy levels as well as suppressing appetite. The company recommends taking two capsules per day. You can also take one or two pills as needed, as long as you don’t exceed six within 24 hours.

Zantrex Black was created by Zoller Laboratories in 2007. The official website and retail stores sell the supplement. We like that it contains a few natural ingredients and that it we found some favorble customer comments, but read on…

Products Similar to Zantrex Black

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Burn HD (Sample offer)read

The Effects of Zantrex Black Side Effects

The first concern was comments about Zantrex Black side effects. “You choose to try out a new supplement because you want to lose more weight,” said our Research Editor. “But, what happens when the ingredients cause problems you didn’t expect?”

“I tool two pills and after thirty minutes my body got extremely overheated and heart began beating very fast,” stated a dieter.

“What I got was bloating, gas, a terrible headache that would not go away even after taking pain reliever,” said another.

We found that not every customer complained about negative side effects while taking Zantrex Black.

“Definitely gives you a jolt of energy without those crazy after effects,” commented a customer.

What are Zantrex Black Results?

The ineffectiveness of Zantrex Black ingredients was a major concern reported by customers. “I’ve been taking 2 after lunch for about two weeks now and I have yet to feel an increase in energy,” reported a user.

“I guess the rapid release takes longer than I expected. No weight-loss at all,” stated a dieter.

On the other hand, some customers shared a more positive experience.

“I lost a few pounds over the course of a month,” said a user,

“Started noticing results after I added exercise,” stated another.

Throughout our years of researching supplements, we found it takes only one problem, like side effects, to slim down your chances of long-term success. If using Zantrex Black means you’ll experience adverse reactions, that’s where the buck stops.

The Science Supporting Zantrex Black Ingredients

There are multiple sources of caffeine in Zantrex Black. While it’s a good addition and has been shown to boost metabolism, too much could lead to negative side effects. In this case, Zoller Laboratories doesn’t include the amount used in this formula. Also, there’s no clinical research connecting this supplement to weight-loss. At DietSpotlight, we look to the science to validate claims made by a company. If there’s none, that’s a big issue.

What Users Are Saying

“This product does really work. I thought it wouldn’t but it does burn fat and give me energy while I workout. I finish them quickly so I need to buy more.”

“Felt a lot of energy the first week I started taking them, then it waned off even after I started taking the recommended dosage.”

“Don’t do it. I got so sick the 1st day I took them I ended up at the ER.”

The Bottom Line – Does Zantrex Black Work?

Still considering Zantrex Black for weight-loss? Well, we like that the longevity of the company and that it contains a few natural ingredients, but we are hesitant to back a supplement that offers no clinical support to back the claims. We’re also concerned about customer reports of an ineffective formula, connected to negative side effects.

If it’s your time to reach your weight-loss goals, we suggest going with a product that contains ingredients not linked to harmful side effects and a formula shown to work.

Among the best products we’ve seen this year is one called Burn HD. The four clinically-tested ingredients in this formula promote weight-loss by boosting fat loss and accelerating metabolism. No one is talking about harmful side effects and there’s frequent mention of dieters seeing great results.

In addition, the makers of Burn HD are so confident in their product; they’re offering a 2-Week Sample.

Learn More About Burn HD »
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Zantrex Black

What are the side effects of Zantrex Black?

Zantrex Black side effects include increased heart rate, headaches, difficulty sleeping, and nausea.

What are the ingredients in Zantrex Black?

Zantrex Black ingredients are Yerba Mate Extract, Guarana Extract, Trimethylxanthine, Damiana Extract, Green Tea Extract, Kola Extract, Schizonepeta Extract, Black Pepper Extract, Rhodiola crenulata Extract, Asian Ginseng Extract, Maca Extract, Cacao Extract, and Black Tea Extract.

How do I know if Zantrex Black is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn HD, with scientifically backed ingredients.

Click here to get your sample of our powerful fat burner today.

Does Zantrex Black Work?

While there are numerous sources of caffeine in Zantrex Black and caffeine is a powerful addition to a fat burner, there is little else of substance in this product. There are no independent clinical reviews and very little anecdotal evidence of efficacy.

How much does Zantrex Black cost?

Zantrex Black is $39.99 per bottle of 84 softgels. As the company recommends six capsules a day, this is only a two week supply and a full month would be about $80.

How should I take Zantrex Black?

The makers of Zantrex Black recommend taking two softgels fifteen minutes before each meal with a full glass of water but warn consumers not to take more than six within any 24 hour period.

Can I take Zantrex Black if I have a health condition?

We tell all readers to check with their doctor if they have a medical condition of any kind. It’s also important to seek advice if you are pregnant or nursing or are taking prescription medications. Most supplements like Zantrex Black have not been tested on anyone under 18.

Can I use Zantrex Black if I am lactose intolerant?

Yes, Zantrex Black does not show any dairy ingredients in the softgels.

Zantrex Black Ingredients

This product has not been evaluated by the Food and Drug Administration.

Zantrex Black Ingredients and Supplement Facts

Serving Size: 2 Softgels
Serving Per Container: 42
Amount per Serving% DV
Zantrex1160 mg*
Yerba Mate Extract**
Guarana Extract**
Damiana Extract**
Green Tea Extract**
Kola Extract**
Schizonepeta Extract**
Black Pepper Extract**
Rhodiola Crenulata Extract**
Asian Ginseng Extract**
Maca Extract**
Cacao Extract**
Black Tea Extract**

Other Ingredients: None

We looked into Zantrex Black ingredients and then wrote this in order to give you the most important facts.

Yerba Mate Extract

Yerba mate is a plant that grows in South America. It contains many antioxidants, vitamins, and minerals. It is also considered a stimulant because the plant has a large amount of caffeine in it. [1]

What Is It Supposed To Do?

Yerba mate extract can be found in many diet supplements with the promise of an increased metabolism, suppressed appetite, improved digestion, and a healthier lifestyle. It is also thought to jump start the thermogenic process in the body.

Clinical Research

According to a study published in BioMed Central Complementary and Alternative Medicine, “Yerba Mate was a potent anti-obesity reagent that did not produce significant adverse effects. These results suggested that Yerba Mate supplementation may be effective for treating obese individuals.” However, another study published in The Journal for Nurse Practitioners stated, “Therefore, weight loss supplements with concentrated dose extracts of guarana, bitter orange, green tea, and yerba mate are not recommended for lasting, healthy weight loss.”

You may want to replace Zantrex Black with another weight-loss supplement like Dietspotlight Burn.

Guarana Seed Extract

Guarana is a plant that contains more caffeine than coffee. It became popular in Brazil after it became an ingredient in some sodas.

What Is It Supposed To Do?

Guarana seed extract is thought to treat memory problems, obesity, low blood pressure, fatigue, headaches, low sexual desire, fever, and pain associated with joint problems.

Clinical Research

According to the Journal of Dietary Supplements, “We concluded that the weight stabilization and increased appetite that we observed in this study justify further studies of guarana in this patient population.” This is the only study we could find testing guarana’s effects alone.


Trimethylxanthine is the chemical that makes caffeine a stimulant. It is very soluble in water.

What Is It Supposed To Do?

Trimethylxanthine allows for the many benefits people may see when consuming caffeine, including aiding in the treatment of headaches, low blood pressure, diabetes, asthma, breathing problems, fatigue, and more.

Clinical Research

According to Obesity Research, “High caffeine intake was associated with weight loss through thermogenesis and fat oxidation and with suppressed leptin in women.” However, Zantrex Black may not contain enough caffeine to warrant these effects, or may contain too much as to induce negative side effects.

Damiana Leaf Extract

The damiana leaf has generally been brewed in teas, primarily in Central American cultures. Some claim it has various health benefits.

What Is It Supposed To Do?

Damiana leaf is consumed to treat sexual problems, fatigue, anxiety, and pain. [2]

Clinical Research

We could not find clinical research supporting the claim that damiana leaf could aid in weight-loss. One study we did find, published in the Journal of Ethnopharmacology, stated, “The extract of Turnera diffusa [damiana leaf] and two isolated compounds pinocembrin and acacetin could significantly suppress aromatase activity.”

Is There Anything Out There That TRULY Works?

We think you may want to give Dietspotlight Burn, a weight-loss product, a try. Right now, there is a Special Trial Offer being made available for all new customers. When you consider its formula, which includes four clinically tested ingredient, and reviews, which seem to be overflowing with positive comments, we think it is worth a try. Click here to learn more.

Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

18 Zantrex Black Reviews

  • Niacin Warning should be included
    Jeremy (Verified User)

    There should be a warning on this medication regarding the Niacin and the potential side affects as a result of taking products containing Niacin.

  • Nicole (Verified User)

    Left me with headaches from the minute i woke up till i went to sleep. Stomach pains and gained ten lb!!!!! Even with added exercise and diet in check.

  •  It works !
    Chochies (Verified User)

    I have been taking zantrex black for almost a month now. Yes it does creat a sence or urgency and also high energy. Depending on what a persons daily activity may be or work wise as well. I work in fast food so im always on the go. When i take my 2 pills a morning be fore work, I have energy for the whole day. Also the one thing i have to say that is a negative for me. Is that lack of appetite. There will be times that i have to remember to eat . but then again eating fast food on a daily basis is not good or healthy. I believe this product works depending on the person. I also have tried the zantrex 3 and saw results. I can also now wear my 2xl manager shirts that have no give what so ever, and feel confortable. My 3xl shirts are big on me so are my pants but the results are good for me in my eyes. Like i said tho depending on the person and his or her daily and work activity will depend on how a person feels.

  • Connie

    I started using this product 3 weeks ago. So far so good. I’m not having any of the side effects mentioned in the previous comments from others. I will say that you MUST drink plenty of water as this is a rapid release type of formula! I started at 180 pounds and today I’m at 166.8. I completely cut out carbs, fried foods, juice, soda, candy…..anything sugary. I workout 5 days out of the week and 1 day out of those 5 days I swim. Mind you, I have to squeeze this in because I work two jobs but all of my sacrifice and hard work is paying off. I will come back and do another update. HINT: Food prep helped out a lot!

    • Montana (Editor)

      Hi Connie. We’re glad you’ve found success with Zantrex Black! You might want to consider adding another supplement to the mix, one called Dietspotlight Burn. It has natural ingredients and is backed by clinical research.

  • Joyve

    The people giving bad reviews are a little off or something because if they read the directions it said very clear: to test your tolerance you should take 1 pill first, then increase the number, of course they gonna feel a lot of crazy side effects if it was the first time taking the pills… And second, if they read the directions, it also say that you should take the pills 15 minutes BEFORE main meals, I think that you ain’t gonna feel nothing if you take them after your main meals… I recommend everybody that want to buy weight loss supplements to read before buying them. 🙂 🙂 🙂

  • Dee

    Had a bad allergic reaction to Zantrex Black. Face got hot and turned bright red on face, neck and arms. Pretty scary!!

    • Holli Dreher

      Thats because of the B3 (niacin) That is common with this Vitamin.


      This is happening to me right now. Except my whole body is bright red, I feel swollen and sick.

  •  Zantrex headache
    Lori (Verified User)

    I agree with most of the comments, I got such a severe headache & an upset stomach

  •  Ranee (Verified User)

    My body overheated within 5 mins of taking this had a horrible rash all over me lasted about 30 mins

  • Damaris

    I believe it works, when I take it I get no appetite wich is a good thing because the less I eat the better result I get.

  •  A.M dose caused by brain heat up !
    Queen Bee (Verified User)

    I took the recommended dose in the a.m. and within fifteen minutes my brain was heating up, face went red like I had a sunburn then my skin turned red and then a rash appeared all over my body.

    • Holli Dreher

      It contains B3. Read up on it…

    • Ranee

      Same thing happened to me !

    • Montana (Editor)

      Hello Queen Bee. We recommend discontinuing Zantrex Black and consulting your physician about these side effects. You may also want to consider trying a different weight loss supplement, like Dietspotlight Burn.

    Karen (Verified User)

    Extreme overall rash, tingling/burning and skin hot to the touch within 15-20 minutes of taking it. If I could give a negative rating I would. Waste of hard earned money. I had to throw it out.

  •  Love these
    Sara (Verified User)

    TheZantrex black is the best one! I love it. No jitters, less appetite, more energy , and more weight loss.