Xentrafen Thermogenic Fat Burner

XENTRAFENXentrafen is a diet capsule developed by NexGen Biolabs.

According to the bottle, users can expect to experience “maximum strength weight loss and appetite suppression”, but customer reviews suggest they are just as likely to experience side effects.

This is not surprising because Xentrafen is a stimulant-powered diet pill that is unlikely to be suitable for the average person who needs to lose weight, but could be a viable option for bodybuilders and other athletes who have built up a tolerance due to years of stimulant use.

Key Features

  • Provides powerful appetite suppression
  • Incredible fat burning
  • Supports extreme weight loss
  • Boosts energy levels
  • Improves metabolic function
  • Increases mental focus
  • Improves thyroid function
  • Targets fat in stubborn areas
  • Protects muscle tissue

How the Claims of Xentrafen Hold Up

A lot of the claims NexGen make for this product don’t hold water. It would be nice if the formulation were capable of improving thyroid function because the thyroid produces hormones the body needs to control the metabolism.

None of the ingredients in the formulation can do this though. Diet pills that provide this feature invariably contain ingredients that provide iodine. Xentrafen does not have any.

In fact all of the ingredients are stimulants. This means the promised energy boost should put in an appearance. Stimulants are also good for improving mental focus and can boost the metabolism.

A faster metabolism burns calories more quickly and helps the body get to the stage where it needs to begin burning fat. Targeting fat in stubborn areas is an appealing idea, but it would be incredibly hard to do.

Xentrafen label

Active Ingredients

Each capsule provides 337mg of a proprietary blend.

The Xentrafen proprietary blend contains unspecified amounts of:

  • 1,3,7 Trimethylxanthine
  • Synephrine
  • Schizandrol
  • Yohimbine
  • NN-Dimethyltyramine
  • 5-Hydroxytryptophan

Blend Potential

All six ingredients are stimulants. A lot of diet pills contain stimulants. The most popular one is caffeine and science shows it has the ability to boost the metabolism and encourage fat burning. However, it’s not good practice to combine several stimulants in the way NexGen have done here.

Not surprisingly, Xentrafen contains caffeine, but its listed as 1,3,7 Trimethylxanthine. Synephrine is a stimulant obtained from a citrus fruit (citrus aurantium), schizandrol is a Chinese herb, yohimbine comes from the bark of an African tree, and NN-Dimethyltyramine and 5-Hydroxytryptophan are also plant extracts.

5-Hydroxytryptophan is alleged to be an appetite suppressant as well as a stimulant, but further study is required. Yohimbine is often added to bodybuilding supplements because it’s believed to accelerate fat burning while also protecting against loss of muscle mass. 

How to Use Xentrafen – The normal dose is two capsules per day. The first one has to swallowed before eating lunch. The second one is taken before dinner. NexGen say a third capsule is allowable for extra appetite suppression, but it’s unclear when the extra dose should be consumed.

Xentrafen Customer Testimonials

A few average customer reviews read:

“These pills make me feel a little sick and dizzy after I take them, but I am hoping this will change soon because they are helping me to lose weight. It’ only 1-2 lbs a week, but it’s still progress.”
“I have not lost any weight at all and I still feel very hungry most of the time. All these pills are good for is giving you a dicky tummy and making you feel ill.”
“None of the other pills I tried worked for me, but this one does. It’s so nice to finally find something that works.”
“I bought 1 bottle and used it in the way the label said. Didn’t do a thing. Nada. Zilch. BIG waste of money.”

Xentrafen Potential Side Effects

Xentrafen contains a number of stimulants, so it will not be suitable for women who are pregnant or breastfeeding a child. Anyone else who is thinking about using this product should play it safe and discuss the matter with a doctor prior to commencing supplementation.

Xentrafen Pricing and Availability

Xentrafen is no longer available via the manufacturer’s website. Walmart appears to be the only company still marketing the product and it’s possible to buy a 60-capsule bottle for $23.99.


NexGen fails to provide a money back guarantee.

The Final Judgment

Is Xentrafen capable of supporting weight loss? The answer is probably yes, but the way the product works presents cause for concern.

Most people can handle small doses of caffeine and other stimulants, if they couldn’t energy drinks would never have become so popular.

Xentrafen contains a 375mg cocktail of stimulants, though, and that’s something very different. Pills of this nature invariably carry an increased risk of side effects and customer reviews show Xentrafen is no exception.

Products of this nature are not worth considering unless you are a hardened stimulant user and, even then, it’s still a wise precaution to seek medical advice prior to taking a supplement like this for the first time.

Editors Choice – which diet pill is most popular with customers? Click here

Jane Wright has a wealth of experience in the supplement industry. She has been on both sides of the fence by first helping to create products and then critically reviewing them. Jane is a keen fitness fanatic and hates the current trend of fad diets. Jane’s No1 tip – Avoid products with hype and trendy new ingredients, tried and tested is the wiser choice. Read more here

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