Best Rated Diet Pills Free Trial Scams


Phen375 is marketed by RDK Globalv Pharmaceuticals as a safer version of phentermine, which was banned due to excessive and dangerous side-effects. The product does not however contain any phentermine.

Below we have reviewed Phen375 against our review criteria to help consumers make an informed decision.


Phen375 Pros
  • Does not contain the banned substance 'phentermine'
  • There is a money-back guarantee
Phen375 Cons
  • No clinical trials provided to back up the claims it makes
  • Contains the potentially dangerous ingredient 'bitter orange'

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Phen375 Review

The Phen375 website claims that it has managed to reproduce all the weight loss power of phentermine with none of the side-effects. The product does not appear to contain any phentermine, but does contain the potentially dangerous ingredient ‘bitter orange’.

Claimed weight loss benefits

Phen375 is claimed on the official website to work as a fat burner, metabolism booster and an appetite suppressant. It is also suggested to improve energy levels and athletic performance.

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How Phen375 Works

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It is claimed that Phen375 works in two main ways: firstly it supposedly burns fat and increases the metabolism via boosting your energy levels and secondly it is said to suppress your appetite so you’ll eat less without hunger cravings which you might suffer from in your normal diet. Phen375 contains many chemicals which apparently all work together to cause your body to go into hyperdrive, giving you an energy boost and at the same time stopping you feeling the need to eat.

The predecessor to Phen375, Phentermine, was successful in causing significant weight loss, but had a lot of dangerous side effects. Phen375 is a reworked version that supposedly utilises the positive effects of Phentermine but in a more controlled and risk-free way. Phen375 does not actually appear to contain any phentermine.

RDK Pharmaceuticals states that Phen375 works in the following ways: it burns more calories even before you embark on a workout, it expedites metabolic rate so you digest and use your food as energy much more efficiently, it reduces appetite so your calorie intake decreases, it utilises existing fat as energy to power your body and prevents the storage of fat in cells, it gets rid of harmful toxins in your body so that your blood is clean and healthy, it helps absorb nutrients from food faster so you burn off fat quicker, and it increases the build-up of muscle tissue which helps your fitness.

Some of the ingredients in Phen375 are commonly used in other weight loss products; for example, Capsaicin-1.12, 1,3,7-trimethylxanthine (caffeine), and L-carnitine. Whilst others, such as bitter orange, dendrobium nobile extract and coleus forskolii root are not commonly used. Not all of the ingredients are proven to aid weight loss – see Clinical Studies for further information about these ingredients. The producer of Phen375, RDK Global Pharmaceuticals, supposedly manufactures the weight loss product in FDA approved laboratories. It is claimed that each ingredient is highly refined to ensure a good quality and completely legal product.

RDK Pharmaceuticals claim that Phen375 can burn as much as 270 calories without you even lifting a finger. However, there are no clinical studies to prove that this is true. The product aims to stimulate your muscles so you feel ready to workout both mentally and physically.

Appetite suppression is a popular selling point for weight loss products. By recreating the feeling of being full, you may not eat as much because you won’t have the desire to. Caffeine, or 1,3,7-trimethylxanthine is one of the ingredients that is believed to work in this way.

Phen375 also contains the metabolic stimulant Citrus aurantium (bitter orange) which could stimulate the central nervous system and so potentially boost your body’s metabolism. This means that when you do eat, your body burns the calories you ingested more quickly. It may however put stress on the cardiovascular system and cause severe side effects in some consumers.

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Key Phen375 Ingredients

bitter orange peel in t5 fat burner

There are a mixture of chemicals and ingredients featured in Phen375, including: Capsaicin-1.12, caffeine, Citrus aurantium (bitter orange), chromium picolinate and L-carnitine. Phen375 is a synthetic rather than a natural supplement. There have not been any clinical trials on Phen375, therefore at the moment the effect within the body of all these chemicals and ingredients is unclear.


Capsaicin is in this product in the form of cayenne pepper. This ingredient is sometimes said to increase the metabolism and fat burning by causing thermogenesis (an increase in the internal body temperature). Unfortunately evidence from scientific studies has not proven this effect.

Caffeine anhydrous

Caffeine anhydrous is essentially caffeine that is found in foods and drinks (such as tea and coffee) but without the water content. Caffeine is believed to give the body an energy boost and there are also claims that it can suppress the appetite.

Citrus Aurantium

Citrus aurantium is the name of the plant more commonly known as ‘bitter orange’. The ingredient is obtained from the peel of the fruit that grows of the plant and is said to provide the body with increased fat burning and metabolism. The substance has however been associated with severe side effects such as heart attack.

Chromium Picolinate

Chromium is an essential mineral for humans, but is only required in very small amounts. As such, most people get plenty of chromium from their diet. There are claims that the substance can aid weight loss and help to control blood glucose levels.


L-Carnitine is an acetyl of Carnitine, enzyme that is found in most body cells. The term is generic and covers include L-carnitine, acetyl-L-carnitine, and propionyl-L-carnitine compounds. It transports fatty acids to be burned in cell for energy, effectively releasing stored fat into the blood to be used as energy for the body. L-Carnitine is a natural component that is concentrated in cardiac muscle and skeletal tissue. As it is found naturally in our bodies, healthy adults and children do not need to consume L-carnitine from food or supplements. Daily dietary fuel is provided by production of L-carnitine in the liver and kidneys.

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Clinical Studies

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There have been no clinical trials conducted on Phen375 and so the medical effects of the substance are untested. The key ingredients in Phen375 include Capsaicin-1.12, l-carnitine, Citrus aurantium (bitter orange), caffeine, and chromium picolinate. The official website of Phen375 lists the ingredients but not their amounts.


Several studies have been performed to test the effects of capsaicin on energy expenditure and fat burning. One study looked at the impacts of capsaicin on weight maintenance following weight loss. Ninety-one overweight participants were involved in the double blind study. They all underwent four weeks of a very-low calorie diet and then a weight maintenance period of three months during which time they were given either capsaicin or a placebo. The results showed that the mean percentage weight regain during treatment wasn’t much different when compared to placebo, but that those taking capsaicin appeared to have a more sustained fat oxidation (breakdown).


Caffeine has been studied for its potential effects on weight loss. One trial was undertaken to determine the effects of caffeine intake on body fat loss with exercise. The study used rats who were divided into four groups. The groups were: caffeine and exercise, no caffeine and exercise, caffeine and sedentary, no caffeine and sedentary. After nine weeks, body weight and epididymal fat was reduced in the caffeine and exercise groups. Epididymal fat call size was reduced in caffeine treated rats and fat cell diameters were reduced in exercise trained rats. The authors concluded that caffeine consumed before a session can increase fat loss with aerobic exercise.

Citrus Aurantium

A review study on the effects of Citrus aurantium on weight loss was published in 2012. The authors looked at studies using human subjects regarding the safety and efficacy of the ingredient. More than 20 studies were identified and reviewed, most of which used overweight or obese subjects and many of which used Citrus aurantium in combination with caffeine (as is the case in this product). Generally, bitter orange alone or in combination with other ingredients, did not cause significant adverse effects and were shown to increase metabolic rate and energy expenditure. Some weight loss was also noted for bitter orange consumption. The authors concluded that longer-term studies were needed to better determine the ingredients safety.

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Phen375 Side Effects


Phentermine was one of the most unsafe and dangerous diet pill substances ever used. Phen375 however, does not appear to actually contain any phentermine. Nevertheless, some of the ingredients in the product have been associated with side effects, some of which are severe.

Firstly, Phen375 can cause increased heart rate and blood pressure. The supplement is proud of its energy boosting properties and these can affect heart rate because the central nervous system is likely to be stimulated by some ingredients. This could also cause insomnia or problems sleeping. People have also reported side effects of nervousness and dizziness in some cases. If you have high blood pressure to begin with – this is common symptom of obesity – you should not take this product. Severely high blood pressure can cause damage to your arteries, coronary heart disease, stroke, and heart attack among other things.

Inconsistency of stools is another side effect that can result from taking Phen375. If you already have either constipation or loose bowels it is advised to keep a check on your stools and report any serious irregularities to your doctor.

Most weight loss aids, like most types of medication, have some sort of side effect. The side effects that you can expect from Phen375 really vary individually; you might not experience any, or you may find that it doesn’t suit you. Before you start taking the product you should weigh up the potential risks and decided whether Phen375 will have a negative effect on your health.

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How to Use

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It is imperative that Phen375 is to be taken only by persons over the age of 18, unless a doctor or dietician has specifically directed the use of Phen375 as part of a medically approved healthy lifestyle. You are also advised not to take Phen375 if you are diabetic, have high blood pressure, or a history heart disease as all of these health problems will be affected by Phen375. Pregnant or breast feeding women should strictly avoid Phen375.

The dosage for Phen375 is 2 pills per day. These should be taken before breakfast and lunch respectively. It is advised to take the tablet approximately twenty minutes before eating and a glass of water should be taken with it to ensure proper hydration. You should never take more than the recommended dosage and if you forget to take a tablet you should not catch up by taking an extra pill with your next dose. You should regard Phen375 as a medication and exceeding the dosage can result in side effects.

The official Phen375 website also has advice on how to use the weight loss supplement. While the pills claim to help you lose weight, they also need help from diet and exercise. Weight loss pills are not a permanent fixture of a healthy lifestyle. You shouldn’t take them for more than three consecutive months as this can result in a longer term addiction to the ingredients in the pills and could affect your health.

Take the product twice a day, at least three hours apart, with a meal and lots of water. The best results of Phen375, and any weight loss supplement, come from a complete change of lifestyle. The pill is designed to help you lose weight and so you need to help it help you. Keeping active with short bursts of energy will help you burn fat and build muscle, all of which is supposedly accelerated by Phen375. If you feel any negative side effects from taking Phen375 you should stop immediately. Consulting your doctor before you make any radical lifestyle changes is also advised.

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Who Makes It?

RDK Global Pharmaceuticals is the company behind Phen 375. The pharmaceutical company is based in Dallas, Texas. On their website the company claims it is the “number 1 rapid weight-loss product company in the United States” with seven years’ experience in the Neutricitical and dietary supplement industry. These claims are not backed up by any evidence.

The company is manufacturer and distributor of rapid weight loss products, and supposedly develops all products in fully FDA-approved laboratories. RDK Global Pharmaceuticals’ mission is to “provide you with the best weight-loss product and service on the market—period.” The official website makes a number of exaggerated claims about the product, but it does offer a money-back guarantee, and contact details are provided.

RDK Global Pharmaceuticals’ primary weight loss product is Phen375. Its full name is Phentemine 375 and it is manufactured in the USA. Phen 375 was launched 2009 as an aid to weight loss. There are a number of other products in the RDK Global Pharmaceuticals range. These include: Adiphene, Kou Tea, and Tea Tone Plus.

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Where to Buy Phen375


Phen375 is not available from any high street stores in the UK. It is only available online from the official website. Bear in mind when researching the product that there seem to be a number of biased review websites for the product which have not been written by independent parties. In terms of cost, offers three pricing options: you can get 30 tablets for £46.02 ($69.95), 60 tablets for £91.38 ($138.90), and the ‘super deal of the day’ is 90 tablets with 30 extra free for £149.87 ($227.80), and a diet plan booklet is thrown in too. You have to create an account on to purchase the product. states that it is “the exclusive distributor for RDK Pharmaceuticals, the manufacturer of Phentemine375.” The website has information about Phen375 and its benefits, a testimonials page, order tracking, and FAQs. There is also an ingredient quality guarantee which states that “the Ingredients are of the highest quality and all Phen375 products are produced in FDA manufacturing facilities, bottle labels and FDA manufacturing certificates are all current and up to date.” It also makes clear that ingredients are labelled both on the site and on all products produced for Phen375.

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Does Phen375 Meet our Approved Criteria

Money-back-guarantee: Yes, a 45-day money-back guarantee is offered, but there are terms and conditions.

One-off payment: Yes, there are several product packages available to choose from.

Manufacturing Standard: The company claim that Phen375 is made in an FDA-approved lab.

Accompanying Diet Plan: Yes, there are a selection of diet plans on the website.

Ingredients and quantities disclosed: No, quantities are not available.

Company contact details readily available: Yes, a selection of contact details are provided.

Phen375 does not meet our ‘Approved’ criteria as the ingredient quantities are not provided.

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Overall Verdict

Phen375 is advertised as a phentermine diet pill, but does not actually contain any phentermine. The product does however contain bitter orange, a compound that is potentially dangerous, especially when combined with caffeine as is the case in this supplement. Despite the official website claiming that the product can target several areas of weight loss, not all of the ingredients have been shown to aid weight loss. There are several groups of people who should not take this product, and there is a lack of information regarding ingredient quantities.

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2 responses to “Phen375”

  1. Violeta says:

    This profuct is giving energy but may be it is the weakest appetite suppresants that i have used!!!! I am not happy with the reaults !!! A lot of money in the trash!!!!

  2. Jack Benny says:

    This profuct is giving energy but may be it is the weakest appetite suppresants that i have used!!!! I am not happy with the reaults !!! A lot of money in the trash!!!!

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