Home » Reviews » Other » Zantrex-3 Review

Zantrex-3 Review – Is it Effective?

By Robert Rivera

Reviewed by Rebecca Williams, MD, MA, MB, BChir

Last Updated:

Evidence Based | Synopsis | Ingredients | Pros & Cons | Side Effects | Precautions | Price | Where to Buy? | Directions | Final Thoughts

Weight loss is largely a calories in, calories out game. The idea is to eat fewer calories than you burn every day.

It sounds simple, but simple doesn’t mean easy and explains why losing weight is one of the most difficult hills to climb.

That is why Zantrex-3 was made.

Zantrex-3 is described as a maximum potency, weight loss energy pill powered by herbs and extracts claimed to support restrictive caloric intake.

Is Zantrex-3 an effective appetite control supplement? Read our Zantrex-3 review to find out.


1) Zantrex-3 at a Glance

  • 13 key ingredients under a proprietary blend
  • Contains four sources of caffeine
  • They warn against taking more than 6 capsules in 24 hours
  • Contains 300 mg caffeine per serving

2) The Company Behind Zantrex-3

Zoller Laboratories is the name of the manufacturing company, being presented as business that is best known for manufacturing vitamins and supplements, having over 70 year of experience.

This company is currently specialized in developing energy and diet health supplements. All of the products that are manufactured by this company are presented as coming with a full money back guarantee because no one formula is effective for everyone.

Contact Information:

  • Phone: 1-800-392-3689
  • Contact Form: https://www.zantrex3.com/contact


3) Zantrex-3 Ingredients

Notable ingredients are:

  • Caffeine, yerba mate, guarana, and kola: These are four sources of caffeine. The non-caffeine ingredients are known to promote “clean” stimulation through a slow-release effect.

  • Black pepper: This is a bioavailability booster.

  • Green tea and Black tea: These are prime sources of antioxidants.

Zantrex-3 contains 13 key ingredients, including four sources of caffeine. It seems the intended effect of the formula is to stimulate the user to help with their exercise.

Then, we also have studies that suggest stimulants like caffeine actually boosts fat burning by a bit. Antioxidants can also burn fat or at least promote lipolysis during exercise, and Zantrex-3 contains a lot of them.

Check out our Xenadrine XT review if you want a fat burner with sage leaf extract.

4) Does Zantrex-3 Work?

We think Zantrex-3 will stimulate you and give you enough energy to power through your workouts. The 300 mg caffeine serving is equivalent to 3 cups of coffee, so it’s definitely more than enough for one tough workout session.

What we’re not so confident about is whether the non-stimulants also work because they’re all generic ingredients with no standardization.

When it comes to supplements, you want potency and potency comes from standardization, and Zantrex-3 lacks it.

Pros & Cons

5) Zantrex-3: Pros and Cons

  • High stimulation
  • Can energize you for long periods
  • May have appetite suppressant effects
  • Generic ingredients
  • Doses not visible
Side Effects

6) Zantrex-3 Side Effects

You may experience stimulant-related side effects such as jitters, excessive sweating, palpitations, and crashing.


7) Precautions of Zantrex-3 Use

  • This product is not suitable for vegetarian use.
  • Pregnant and nursing women, as well as people that are under 18 are not to use this formula.
Where to Buy?

8) Where to Buy Zantrex-3

Zantrex-3 can be purchased online through their website or from various online supplement retail stores.


9) Zantrex-3 Price

One bottle costs $39.99.


10) Zantrex-3 Directions

DIRECTIONS: For weight loss, adults take 2 capsules with a full glass of water 15 minutes before main meals. For a significant energy boost, take 1 or 2 capsules as needed. Do not exceed 6 capsules in any 24-hour period. Use in conjunction with any sensible diet and exercise program. Individual results will vary.

Final Thoughts

11) Final Thoughts on Zantrex-3

Zantrex-3 works really well as a stimulant or energy booster, which is always good if you pair this fat burner with exercise or sport. The 300 mg caffeine per serving is more than enough to get you going for hours.

The only downside is, we think you would get the same results if you just bought a box of caffeine pills, which is way cheaper.

The herbs and extracts in the formula are generic and the doses are invisible. We have no way of knowing if they’re within working doses or not, let alone if they contain the active compounds we want for fat burning.

As far as recommending is concerned, we don’t think Zantrex-3 is worth the price.

3.7/5 - (3 votes)

Reference Sources

Notify of
Inline Feedbacks
View all comments

Maybe it’s in my head, but I believe that herbal supplements are better for weight loss and it really works for me,

John B.

My wife use this formula and I can say that I am truly impredsed with its effectiveness, I can see changes every few days.