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Zantrex 3 Review - 7 Things You Need to Know

Zantrex 3 is a fat-burning pill produced by Zoller Laboratories. The company promises “rapid, significant weight loss and extreme energy” and claims that Zantrex 3 will lead to weight loss five times as the leading ephedra-based pill. But ephedra has been unavailable for purchase in the United States for many years, and the dated comparison makes us question the product’s relevance today.

Also, the lack of clinical support and the conflicting customer reviews lead us to believe the product is just another fat burner built around stimulants. We wanted to take a look to determine if there is anything proprietary about Zantrex 3 that separates it from the pack. Read on to get the Bottom Line on the product.

Zantrex 3 can be purchased through their Official Site.

Zantrex 3 Readers: Noom is offering our readers a risk-free trial, for a limited time. Click here for more information!

What is Zantrex 3?

Zantrex 3 fat burner is a supplement containing:

  • Yerba mate
  • Guarana
  • Trimethylxanthine
  • Damiana
  • Green tea
  • Kola
  • Schizonepeta
  • Black pepper
  • Rhodiola crenulata
  • Asian ginseng
  • Maca
  • Cacao an
  • Black tea

The recommended serving size is two capsules before meals to supposedly assist with weight-loss. One of the claimed benefits is weight loss.

How Did Zantrex 3 Start?

Zoller Laboratories, the company behind Zantrex 3, has been in business for more than two decades. They specialize in weight loss supplements.

Zantrex 3 Products

There are more than just the original Zantrex 3 formula. Additional products include:

Zantrex 3 ingredients

Zantrex 3 Competitors

Hydroxycut Black
Other similar products: Zantrex,

Zantrex 3 Ingredients


According to the Mayo Clinic, niacin plays an important role in converting food into energy.

Yerba Mate

Yerba mate contains caffeine, roughly about 30 to 40 milligrams of caffeine per serving. There are claims yerba mate boosts mental clarity.

Guarana Seed Extract

Supposedly, guarana helps improve athletic performance as a stimulating factor, according to PLoS One, and to decrease mental and physical fatigue, says Pharmacology, Biochemistry, and Behavior.


Trimethylxanthine is a form of caffeine that may boost energy levels.


Damiana has been used in traditional medicine for years but has properties similar to caffeine and may enhance energy.

Panax Ginseng

Panax ginseng is believed to help reduce stress, boost energy, and promote relaxation, as per Medical News Today.

Kola Seed Extract

Kola seed extract may help boost energy levels.

Black Tea Leaf Extract

Black tea may help boost alertness, improve memory, and cognition, according to Appetite.

Black Pepper Fruit Extract

BioPerine is a branded version of black pepper. According to the journal Cancer Research and Treatment, when piperine is combined with curcumin, curcumin’s bioavailability increased by more than 2,000 percent.

Green Tea Leaf Extract

Green tea contains caffeine and may help boost energy and alertness, according to the Journal of Advanced Pharmaceutical Technology and Research.

Does It Work?

Does Zantrex 3 Work?

While there is no clinical evidence of the effectiveness of Zantrex 3, there are studies showing the effect of some Zantrex 3 ingredients. Remember, individual results will vary.

Side Effects

Potential Zantrex 3 Side Effects

While there’s no mention of side effects from Zantrex 3; there’s the potential for some to notice side effects from ingredients, including:

  • Headaches
  • Nausea
  • Upset stomach
  • Sleeplessness (if taken close to bedtime)


In 2013, Basic Research LLC was sued, according to official New York District Court documents. The company was sued for putting an amount of caffeine deemed unsafe by the FDA in its products, including Zantrex-3.

Zantrex 3 side effects

Where To Buy

Where to Buy Zantrex 3?

There are several locations selling Zantrex 3. You can buy Zantrex 3 through the official website, online and traditional retailers.

What Users Are Saying

What Users Are Saying

“Actually works, don’t forget lots of water – I tried this about 17 years ago and it was great! I have been taking it since January 2020 and have lost about 15 pounds so far. Main side effect is headaches so be sure to drink plenty of water, but a wonderful product that works.”

“Don’t take diet pills build muscle – I took 1 just 1 pill and with in 15 minutes started have anxiety attacks that lasted for 16 years. Please be careful taking any diet pills.”

“As advertised.”

Bottom Line

The Bottom Line on Zantrex 3

There are benefits to Zantrex 3. While some have lost weight with this supplement, some have not. It’s cost-effective and available without a prescription. There’s even research backing the benefits of the ingredients. However, there are always alternatives you can add to your existing weight management plan.

Any weight management plan should consist of a healthy diet, exercise, and the right program designed just for you.

Among the best products we’ve seen this year is a weight-loss program called Noom. The plan is personalized to your needs, so you get meals designed for you, human coaching with one-on-one support, expert health articles, and more.

Also, the company behind Noom is so confident in their app, that they’re offering a free trial offer

Learn More About Noom »
Zantrex 3 Review
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Zantrex 3

What are the side effects of Zantrex 3?

Some potential side effects of Zantrex 3 are flushing of the skin, rapid heartbeat, sleeplessness, irritability, nervousness, upset stomach and nausea.

What are the ingredients in Zantrex 3?

The ingredients in Zantrex 3 are yerba mate, guarana, trimethylxanthine, damiana, green tea, kola, schizonepeta, black pepper, rhodiola crenulata, Asian ginseng, maca, cacao, black tea, gelatin, magnesium stearate, stearic acid, rice flour, microcrystalline cellulose, silicon dioxide, titanium dioxide and fd&c blue #1.

How much does Zantrex 3 cost?

One bottle of Zantrex 3 costs $39.99.

How should I take Zantrex 3?

You should take one serving, two capsules, three times per day prior to meals. The company recommends not exceeding six pills within a day. If you take as directed, one bottle lasts 14 days.

Do I need to diet on Zantrex 3?

No, you don’t need to diet on Zantrex 3, but eating healthy meals is beneficial to achieving weight-loss goals.

Where can I buy Zantrex 3?

Zantrex 3 can be purchased using their Official Site.

Do I need to exercise on Zantrex 3?

No, you don’t need to exercise on Zantrex 3, but the company recommends adding fitness to maximize your weight-loss.

Does Zantrex 3 come with a guarantee?

Yes, Zantrex 3 comes with a guarantee. If you are unsatisfied with the product for any reason, you can return the supplement for a full refund within 30 days.

Does Zantrex 3 work?

Although the company claims Zantrex 3 is supported by research, there’s no evidence the supplement is effective.

What is in Zantrex-3?

Zantrex-3 is a diet supplement you can obtain over-the-counter. Unlike other diet drugs on the market, Zantrex-3 does not contain amphetamine. Instead, it contains an herbal blend consisting of guarana, caffeine, yerba mate, black pepper, green tea, and ginseng.

What is in Zantrex?

Caffeine, Yerba mate, green tea, and Guarana are the ingredients that make Zantrex. Yerba Mate and Guarana are both natural, safe, user-friendly herbs. This weight loss supplement contains no amphetamines at all and is not harmful to the body when taken only as instructed.

194 Zantrex 3 Reviews

  • Side effects while taking 2 capsules.
    Amber (Verified Purchase)

    I have been taking 1 capsule at a time I moved up to two and headaches came I moved back down to 1 and good results no more headache.

  • Zantrex 3 HAS worked.
    Melody (Verified Purchase)

    My experience with Zantrex-3: I started off with one pill twice a day and moved on to two pills twice a day after a week, but that amount made me incredibly jittery and tense. When I was taking four pills a day, I had this ghosting headache and felt just odd in general (not to mention that I could never get to sleep), so I went back to one pill twice a day. While I had a relative boost in energy, I also had NO appetite, sometimes to the point that it made me nauseous just to think about or smell food. I had to force myself to eat (!). I’ve gone from 150lbs to 135lbs in the past three weeks. So altogether, I can say is that it HAS worked. But I’d recommend that everyone be very, very careful with it.

    • Leeanne

      I have taken Zantrex-3 for a week now and i have lost 5 pounds. I have several more pounds to lose, and i hope that my weight loss keeps up for me. I am only taking 2 pills a day right before my biggest meal of the day.

      • samantha

        ya i really hope y all r telling the truth too cause i just had a baby and i really wanna lose wait… and im really close to ordering this product

    • Sherry

      I do agree with them. I have been takeing it for awhile now and I have lost 55 lbs. I only take one in the morning before my breakfast and that last me all day. If I take more then that then i get the sick jittery feeling aswell. I thought since i have been taken them for awhile that i could try to take 2 a day lol dont do it just stick with one; you can go to sleep that way. I recommend it to anyone that wants to lose weight and have more energy. I even like taking it because i dont feel soo lazy in the mornings and actually get feel like dressing up and playing with my kids. I dont get so irritable with them either. but…. I do talk alot on them…I already had mine today lol

      • Lesley

        I just bought this and very excited to try it. One question though are you doing a workout with taking the pill too? If so what type of exercise are you doing?

        • Shanel

          I have been taken Zantrex-3 for almost a month now. with me working I never have time to work out but, I do walk a mile everyday after work. I have lost 15 pounds just by doing that.. I take 4 a day.. 2 before breakfast and 2 before dinner. I dont eat after 6pm. So yes working out plays a part but, Only if you want to see a big result in your weight loss.

      • reenie


      • Jay

        im wondering the samething as LESLEY!

        • cheryl

          Love it! I had a baby in December. Started taking Zantrex in February and I’m down 46 lbs now without exercise! It does make me feel nauseous at times, but the results far outweigh the side effects for me. I was losing about 5-7 lbs a wk when I first started taking it, it’s slowed down since then. Guess I’ll have to start exercising.

  • What happen when leave the product.
    Farrann (Verified Purchase)

    After taking Zantrex 3 for a while and after losing the amount of weight one wants to lose, what happens when you quit taking it? Will you gain the weight back? Will you gain the fat back?

    • Adrian (Editor)

      Hello, as long as you maintain a healthy life style and exercise, you should be able to keep the weight off. You could always go back to it.

    • Common Sense

      If you continue with a crappy, unhealthy lifestyle….duh.

      • Maggie

        Do u think a 13 year old girl should take it ?

        • Adrian (Editor)

          Hello Maggie, the majority of the Zantrex 3 product line is not intended for anyone under the age of 18. Please consult with a doctor before giving it to any minor.

        • No way!

          No, a 13 year old should not take this. It does have side affects that can be difficult to handle. Vomiting, dizziness, and anxiety. It does give you lots of energy but, the bottle does say under 18 years of age to not use.



    • BettinaD

      I bought Zantrex 3 and I had my doubts, but I swear on my kids’ life, I’ve lost 3 pounds in just one day! I am not kidding, no one is paying me to say this, I couldn’t sleep at all last night but I think I am just going to take 1 a day, I took one before breakfast and I took one before lunch, I was up until 4 am, but I am just going to take 1 a day. oh of course I dieted all day and walked a whole mile. Good luck, I am going to keep using zantrex 3.

      • Anonymous

        there is nothing healthy in losing 3 pounds in one day. you are crazy to be excited about that. 3 pounds in a week, that should excite you because it would actually be a concrete result

        • Anonymous

          If you didn’t want to lose fast, you wouldn’t be looking into this product…. So hush!

        • Guest?

          dont be hating on her let her have her joy prbably mad cause you fat

        • Your Name

          If all you can do is put people down for there accomplishments then DONT comment!!!!! Your probably jealous. Congrats on the weight loss, hope I can be so successful with it

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