Xenadrine CORE

The makers of Xenadrine Core promise that consumers will feel “a thermogenic experience packed into a cutting-edge, rapid-release blue chrome pill”.

We take a look to see if the product really is as strong and effective as its marketing makes out.

Xenadrine CORE Pros

  • Some clinically proven ingredients
  • Positive customer testimonials

Xenadrine CORE Cons

  • Reports of side effects
  • Some quantities insufficient to be effective
  • Overhyped and under-explained ingredients list
  • Guarantee and returns dependent on retailer
Watchdog Rejected Diet Pills
Xenadrine CORE

Xenadrine CORE Review

Xenadrine CORE Facts

  • Manufactured by Iovate Health Sciences International Inc.
  • 80 capsules per bottle
  • Fat burner with ‘sensory’ ingredients

Although it is not made clear from the main website, reading the terms of use page suggests that the manufacturer of Xenadrine Core is Iovate Health Sciences International Inc. Despite being a Canadian company, Xenadrine is only available within the USA. The company manufacturers a range of products that include diet supplements and sports nutrition. The most well-known brand of theirs within the diet supplements sector is Hydroxycut.

Whilst no contact information is provided on the Xenadrine website, the manufacturer’s separate official website does provide the following contact details:

Iovate Health Sciences International Inc.
381 North Service Road West
Oakville, ON, L6M 0H4
Phone: 1.888.334.4448

How to Take Xenadrine CORE

Day 1 and 2
Take 1 capsule, once daily for the first two days with a glass of water 30 minutes before your meal.

Day 3 and beyond
Take 1 capsule, twice daily 30-60 minutes before your two largest meals with a glass of water.

Don’t snack in-between meals.
Do not take within 5 hours of bedtime.
For best results, use for 60 days in combination with diet and exercise.
Do not exceed 2 servings (2 capsules) in a 24-hour period.
Drink 10 glasses of water daily for general good health.
Read the entire label before use and follow directions provided.

Xenadrine Core comes with a long list of instructions for how best to use the diet pill:

To assess your tolerance, start with 1 capsule, once daily for the first two days, and then move to 1 capsule, twice daily 30-60 minutes before your two largest meals (e.g. breakfast and lunch).

Xenadrine CORE Concerns:

  • Many ingredients do not boost weight loss
  • Reported side effects
  • Not suitable for many people- see caution list

What Does Xenadrine CORE Claim To Do?

The product label states:

  • Powerful weight loss
  • Hardcore thermogenic formula
  • Unrivalled sensory and energy

The official website provides a bit more description, stating:

NEW Xenadrine Core was designed for hardcore workouts, hardcore intensity, and most importantly, hardcore results! Featuring novel sensory ingredients: Sacred Lotus (Nelumbo nucifera), Gotu Kola, Perilla Leaf Extract and Caraway Seed Extract. Plus caffeine anhydrous to deliver an electrifying thermogenic sensation.

So What Is Xenadrine CORE and What Are The Ingredients?

The ingredient quantities below are provided per capsule. The formula is made out of a proprietary formula, but the company does list some of the quantities for a selection of the individual ingredients.

Xenadrine Core Complex- (600 mg):

  • Green coffee bean extract (200 mg) (standardized to 45% chlorogenic acids): An extract from unroasted coffee beans which may aid with weight loss. Several trials have found that overweight subjects lost significant amounts of weight whilst consuming green coffee bean extract, especially when compared to a placebo. Weight loss results were not seen in patients that were of a normal healthy weight already. The active compounds in green coffee extract appear to be caffeine and chlorogenic acid.
  • Caffeine Anhydrous (150 mg): Numerous studies have shown that caffeine boosts energy levels and alertness, as well as mildly boosting the metabolism, causing a small increase in the number of calories used by the body. The effects shown in studies are small, and some studies are inconclusive.
  • White kidney bean extract: One study in humans showed that participants who consumed white kidney bean extract, in addition to being on a multi-component weight loss programs (diet, exercise and behavioural intervention) lost more weight when compared to those who just followed the multi-component diet. However, the participants were consuming 2000 mg per day, far more than the quantity used in Xenadrine Core, making it unlikely that this ingredient will impact weight loss significantly when using the product.
  • Mangosteen Fruit Powder (garcinia mangostana): Mangosteen has been researched in connection to weight loss, but only when combined with a flower, Sphaeranthus indicus. Results were positive, with statistically significant reductions in weight, but the effectiveness of the fruit powder on its own is unknown.
  • Sacred lotus seed extract (1% higenamine): Higenamine is chemical compound which is extracted from various plants. It has only been tested in vitro and in animals, so its effects in humans are totally unknown. However, these studies have indicated that it may aid athletic performance, and works as a stimulant. In general, there is a lack of research into how Lotus works, its safety, and how it interacts with the body.
  • Perilla Leaf Extract: Used in Chinese medicine for a range of ailments, but there is a lack of actual clinical research to support its use to treat illness. Studies in rats suggest it may help to lower cholesterol levels and triglyceride levels.
  • Gotu kola whole herb extract: Not to be confused with Kola Nut, another common weight loss ingredient. It does not seem to play any direct role in weight loss, but can help circulation and mental function, according to preliminary studies.
  • Caraway Seed Extract: May help to treat heartburn and to reduce digestive discomfort, bloating and gas.

So What Does All This Mean?

The two main weight loss ingredients used in this diet pill are green coffee bean extract and caffeine, both of which have support from clinical studies. White kidney bean extract is clinically proven to aid weight loss, but only when used in much higher doses than are available from taking two capsules of Xenadrine Core.Therefore it may not make much difference to weight loss.

This is further suggested by the official website failing to mention the inclusion of this ingredient in its hyped up promotional material.

The rest of the ingredients are not directly involved with weight loss, but are ‘sensory’ and mood improving. In theory, by reducing bloating, improving metal clarity, and improving health markers such as triglyceride levels and cholesterol levels, dieters should feel healthier and more motivated to continue with their weight loss journey.

Does Xenadrine CORE Have Any Side Effects?

Caffeine can cause a range of side effects including headaches, increased blood pressure, increased heart rate, heart palpitations, increased urination, dehydration, anxiety, jitteriness and insomnia.

Caffeine is present in this diet pill as both a separate ingredient and as a naturally occurring part of green coffee bean extract.

Whilst white kidney bean extract is only present in a small quantity compared to typical effective doses, it is still possible that consumers could develop some side effects from using the ingredient.

It is possible that whilst the body is getting used to the effects of the carb blocking ingredient, white kidney bean extract, users may experience stomach pains, increased bowel movements and flatulence. Some users of carb blockers in general report severe gas and bloating throughout their use of the products. Discomfort and tenderness in the stomach is not uncommon.

The use of carb blockers may seriously reduce or limit the creation of alpha-amylase, the enzyme that breaks down carbohydrates in the stomach. Whilst this will aid weight loss in the short term, it may become unhealthy to continue this in the long term. Some users report heartburn, as their body struggles to adapt to the imbalance of enzymes in the stomach.

Consumers who eat large amounts of carbohydrates whilst using the diet pill may experience sudden diarrhoea following meals. This is because of the large amount of food that is being passed through the digestive tract without being fully digested.

It is also possible that carb-blockers may interfere with vitamin absorption. Whilst in the short term, this may not cause significant health problems, the use of carb blockers should not be long term.


Not intended for use by persons under 18.

Do not use if you are pregnant or nursing.

Consult a medical doctor before use if you have been treated for, or diagnosed with or have a family history of any medical condition or if you are using any prescription or over-the-counter drug(s), including blood thinners.

One serving (1 capsules) of this product contains up to as much caffeine as 1.5 cups of coffee.

Caffeine sensitive individuals may experience the following symptoms, including (but not limited to) restlessness, nervousness, tremors, headache, anxiety, palpitations, increased heart rate, or difficulty sleeping.

Do not combine with other sources of caffeine.

Consult a medical doctor before starting a diet or exercise program.

Do not exceed recommended serving.

Improper use of this product will not improve results and is not advised.

Use only as directed.


Any Xenadrine CORE Reviews From Customers?

There are numerous reviews for Xenadrine Core on Amazon, with many of the reviews being positive.

I have had very good success with this product, it is great at curbing hunger and gives you the full feeling. You do need to drink plenty of water but we should be doing that regardless. I really enjoy this product and have seen great results with inches. Not as much weight loss as I wanted.

This was by far the most powerful fat burner I’ve tried It helped my weight loss of 26lbs in 2 months mostly used as a preworkout but I’d recommend this product to anyone looking to shed to get your weight loss started this is the starter pack right here.

I have been taking this for about 3 weeks. I have tried so many diet pills, but so far none as easy as this. I do not have any side effects to complain about. Suppresses my cravings big time. No jitters. No upset stomach or queasiness, Instead, I have a lot of energy, small appetite, no snack attacks, and I sleep great and night. One pill 30 min. before breakfast and lunch and that’s it!!!
I am loosing inches. My pants fit better and some are loose. This works.

However, there are a few negative reviews for the product:

It didn’t really give me any energy as other products have, but I didn’t seem as lethargic as I was before when I was not taking it. It was nice in the fact it was one pill twice a day and didn’t keep me awake at night. It didn’t make me feel nervous. It suppressed my appetite soon after taking it which was great but wore off rather quickly way before the time I was to take the second capsule. I saw no difference in weight loss by taking it than I did with just diet and exercise alone.

I think this meant for people who are trying to lose ALOT if weight. I am needing to lose about 15lbs. I took one and made me Extremely sick. I love xenadrine products but this one was just to much for me.

I didn’t like how it made me feel. No extra energy and didn’t curb my appetite much at all. I’m sure it works for some people. Everyone is different.

So Does Xenadrine CORE Work?

Many of the customer reviews for Xenadrine Core are positive, but even amongst the positive reviews, consumers mention that whilst they notice huge boosts in energy, not everyone reports significant weight loss.

There are also some negative reviews, with some people stating that the two capsule daily dose is too strong for them, causing side effects such as jitters and insomnia. The ingredients list suggests that people may lose some weight from using Xenadrine, but effectively only two of the weight loss ingredients are present in sufficient quantities to make any difference to weight loss attempts.

The majority of the ingredients are not focused upon weight loss, and are described as ‘sensory’- whilst these ingredients could improve some other factors of the consumer’s health, they will not boost weight loss.

Where Can I Buy Xenadrine CORE?

Xenadrine Core is available from, and costs $47.20 per bottle, with free shipping. Each bottle contains 80 capsules, which is enough for a 40 day supply if used as directed. Consumers who cannot tolerate the maximum dose should stick with the initial lower dose recommended.

Currently the company can only ship within the USA. A1supplements also sell Xenadrine Core, with each bottle costing $38.95 plus delivery.

What About A Guarantee

As Xenadrine products are only available through third party retailers, the individual returns policies and money back guarantees of the retailer apply to this product.

Watchdog Verdict

Overall, the reviews of Xenadrine Core suggest that people can and do lose weight with this product, provided that they are also dieting and exercising. However, whilst the ratings for this product are generally very high, customers praise the energy boost but are sometimes disappointed with their weight loss.

We feel that the manufacturers have made claims about the product’s strength that do not necessarily match the actual capabilities of the product, and that there is an over-reliance upon caffeine, which can cause side effects, and despite being clinically proven to aid weight loss, only causes a small increase in metabolism.

Based on the cost of the product as well, we believe that there are better options available containing caffeine and green coffee bean extract, as well as other known effective weight loss ingredients.

The manufacturers also fail to explain just how the ‘sensory’ ingredients work, and describes the ingredients as a ‘hardcore thermogenic formula’, despite only containing two incredibly well-known and commonly used thermogenic ingredients.

Overall, we believe that this product could be mildly effective, but is definitely overhyped by the manufacturer. There are many better thermogenic products available, which are more suited for effective weight loss and for use as a pre-workout energy boosting supplement.

We reject Xenadrine CORE.

Watchdog Rejected Diet Pills
Xenadrine CORE

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See our Full Review here

Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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