Bio-Synergy Performance Thermogen

Diet pill manufacturers can provide vastly different amounts of information about the contents of their diet pills. Whilst some provide highly detailed ingredients lists, other companies provide far less detail. The manufacturers of bio-synergy Performance Thermogen fail to provide any ingredients list on their website at all, merely stating that their product contains a proprietary herbal blend.

Below we take an in-depth look at Bio-synergy Performance Thermogen to see just how effective it really is, and to report on the actual ingredients used in this diet pill.

Bio-Synergy Performance Thermogen Pros

  • Ingredients have some clinical support

Bio-Synergy Performance Thermogen Cons

  • No money-back guarantee
  • Hard to locate ingredients list
  • Large number of capsules to take each day
Watchdog Rejected Diet Pills
Bio-Synergy Performance Thermogen

Bio-Synergy Performance Thermogen Review

Bio-Synergy Performance Thermogen Facts

  • Manufactured by Bio-Synergy Ltd
  • 120 capsules per bottle
  • Available in the UK

Bio-Synergy Performance Thermogen is a weight loss product manufactured by Bio-Synergy. Whilst some third party retailers describe this as a weight loss product for men, there is no indication on the official website that women cannot or should not use this product. It is described as a ‘unique fat-loss support formula to support weight loss and a healthy metabolism’.

Bio-Synergy are a UK based company that offer numerous diet and exercise supplements, under a number of different ranges and sub-brand names. Thermogen is a part of their Performance range. Bio-synergy can be contacted using the information provided on their official website.

How to Take Bio-Synergy Performance Thermogen

Take 2 capsules 3 times daily, split throughout the day on an empty stomach with a glass of water.
Do not exceed recommended dose.

Bio-Synergy Performance Thermogen Concerns:

  • No ingredient quantities provided
  • No money-back guarantee
  • Hard to locate ingredients list

What Does Bio-Synergy Performance Thermogen Claim To Do?

The manufacturers of Performance Thermogen state that it has the following benefits:

  • Ideal for those looking to reduce body fat
  • No.1 selling product
  • Natural ingredients
  • Easy & convenient to use
  • Noticeable results within 1 month

Bio-Synergy describe Performance Thermogen as a ‘unique fat-loss support formula to support weight loss and a healthy metabolism’.

So What Is Bio-Synergy Performance Thermogen and What Are The Ingredients?

The ingredients list on the website reveals little about the product, merely stating that each serving of two capsules contains 900 mg of the Thermogen Herbal Blend, without actually listing any of the ingredients present in the blend.

The product bottle does provide more details, although it does not list any individual ingredient quantities.

Customers are instructed to take a total of six capsules per day, which provides a total of 2700 mg of the proprietary formula.

  • Yerba Mate: There is diverse clinical evidence to support the use of this plant for weight loss, as it stimulates the central nervous system and increases the metabolic rate. It is also a source of caffeine, and so should increase energy levels. Read our full investigation for more information.
  • Guarana Seed: A berry that is naturally high in caffeine, it is often an ingredient in energy drinks and diet pills. Numerous studies have shown that caffeine boosts energy levels and alertness, as well as mildly boosting the metabolism. The effects shown in studies are small, and some studies are inconclusive.
  • Kola Nut: Kola nut has been studied in relation to weight loss, but in conjunction with ephedra, a substance that is now banned in the U.S due to severe side effects. As a source of caffeine, Kola Nut may boost the metabolism mildly. In animal studies, regular use of kola nut over a month resulted in a decrease in both appetite and body weight.

So What Does All This Mean?

All three ingredients used in Performance Thermogen are natural sources of caffeine, making it likely that this product is very high in caffeine levels. There is no information suggesting how much caffeine is present per serving, but customers instructed to take three servings per day (a total of six capsules).

This will likely increase energy levels, mildly increase the metabolism, and increase urine output, as caffeine is a diuretic as well as a stimulant. There is no information stating how much caffeine in present in this diet pill, but it is likely to be fairly high.

Does Bio-Synergy Performance Thermogen Have Any Side Effects?

Significant quantities of caffeine can cause side effects such as headaches, increased urination, dehydration, jitteriness, increased heart rate, increased blood pressure, heart palpitations and problems sleeping.

Kola Nut can also cause stomach upset and vomiting. Yerba mate has been associated with liver damage when taken in large doses and with prolonged use (several years or more).

Consuming large quanities of caffeine regularly can lead to caffeine addiction; consumers who stop taking caffeine suddenly could experience adverse effects as they go through withdrawal, including headaches and fatigue.

Do not exceed recommended serving size. Use only as directed. Not intended for use by persons younger than 18 or by those with a serious medical condition. Do not use if pregnant or nursing. Not suitable for anyone who is sensitive to caffeine or who has any heart related health issues, including high blood pressure. Consult your doctor if you are unsure about the suitability of this or any other supplement before purchase.

Any Bio-Synergy Performance Thermogen Reviews From Customers?

There are numerous customer reviews for Bio-synergy Performance Thermogen; on amazon, the majority of the customer reviews are from Vine Reviewers, who receive the product free in exchange for a balanced review; customers can become Vine Reviewers if they consistently provide high quality and detailed reviews.

I ordered Bio-Synergy Performance Thermogen capsules for my daughtage age 24. She tried them one day but stopped because they made her feel too hyper and she also said they gave her a headache and she felt a bit nauseous. So I gave them a try, age 51. They gave me a headache and I didn’t go to sleep until 4 am! The next day I tried taking only 1/2 and it was better. We are both unaccustomed to stimulants like caffiene so I think some people may have to build up to a full tablet. I also take it in the a.m. because the first time I took it at lunch time and as I said I was up until 4 am. At 1/2 the dose I feel energized and able to sleep at night.
I have used them 2 wks and have lost 6 lbs so I am sure with this increased energy, which allows me to get more done in the day, I will be losing a few more pounds. I would definitely recommend them and would advise to adjust the dose.

I have used these alongside my training and saw results within 2 weeks, but biggest improvement was after a month, not only did I feel less hungry and have fewer snacks, but felt more energised too.

Useless. Would not use again and would not rate at all.

I found they helped along with my daily work outs And Took away my hunger from cutting down on food.

I would say you need to do a workout or jog to see them work, I doubt they are that magic cure everybody wants lol!!!! Down side you need to take 4 tablets a day so its pretty pricey for just one months worth.

So Does Bio-Synergy Performance Thermogen Work?

Customer reviews are mixed, and even the positive reviews for this product tend to state that the effects are subtle, with weight loss being slow but progressive over the course of using the supplement.

A few customers have noted side effects, including being hyperactive, having jitters and feeling restless, but also unable to focus.

The ingredients list consists of three ingredients; kola nut, guarana and yerba mate. All have some clinical support, and are all a source of naturally occurring caffeine. This will increase the metabolism slightly for a few hours after consumption, leading to some weight loss over time. Although consumers are instructed to space out their servings of the product, they should be cautious about taking the product in the evening, as it will interfere with sleep patterns if taken too late in the day.

Where Can I Buy Bio-Synergy Performance Thermogen?

Bio-Synergy Performance Thermogen is available direct from the manufacturer’s website. Here a single bottle of 120 capsules costs £29.99 plus delivery. When customers order four bottles in one order, they will receive a 30% discount. Free shipping is available on orders of £50 or more.

There are numerous third party retailers that also sell Bio-synergy Performance Thermogen. Littlewoods offer a single bottle for £37.00 plus delivery. The same sized bottle, containing 120 capsules, is available from amazon’s UK site for £21.99, with Prime delivery. also stock bio-synergy Performance Thermogen, selling a single bottle for £29.00 plus delivery.

120 capsules will last for 20 days when used as stated on the bottle.

What About A Guarantee

There is no money-back guarantee for this product. Bio-Synergy accept returns of unopened products within 30 days of purchase:

We are so confident that you will be impressed with the results from our products that we will replace or refund any unopened returned items if accompanied with receipt/proof of purchase within 30 days of purchase and if sent by recorded mail to our offices.
Bio-Synergy Ltd
120 West Heath Road

We will not be responsible for the cost of postage and packaging to return items. We recommend using a Recorded Delivery Service for returns as we can not be responsible for items which never make it back to our warehouse.

Watchdog Verdict

Bio-synergy manufactured a less than ideal product when they made Performance Thermogen. They fail to provide any information about the actual contents of their diet pill to prospective buyers; the only ingredients list we found was on the side of the bottle; the only picture of this view of the bottle is provided by an Amazon seller. Even then, the ingredients list consists of three products that contain caffeine, and yet no caffeine content is referenced. Considering that customers have to take 6 capsules per day, and numerous customers have reported adverse side effects, this information would be very useful for prospective customers.

The company also provides no health warnings or cautions to potential customers; there are actually numerous groups who should not use this product for health reasons, including anyone with high blood pressure or a sensitivity to caffeine and stimulants.

There is no money-back guarantee for this product, and customers only have 14 days from delivery to return unwanted and unopened products.

Performance Thermogen does seem to be able to aid weight loss, although the results are relatively small and only noticed by reviewers after a few weeks. Side effects appear to be common, and indicate that the product is very high in caffeine. One bottle contains 120 capsules, but this provides only a 20 day supply.

Overall, we do not recommend Bio-Synergy Performance Thermogen to our readers.

Watchdog Rejected Diet Pills
Bio-Synergy Performance Thermogen

2.2 out of 5
Bio-Synergy Performance Thermogen
  • Effectiveness
  • Safety
  • Price / Guarantee

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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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