Phenterex is a nonprescription weight management aid that claims to function as both an appetite suppressant and fat burner. Moreover, not only does it supposedly boost energy, suppress the appetite and burn fat like the prescription diet drug, Phentermine, the claim is that this dietary supplement can also boost thermogenic body heat.

What Phenterex Claims to Do for You

According to the official product page at the time that this Phenterex review was written, those who take the product can expect to quickly lose weight, and reshape their body by:

  • Melting away cellulite
  • Melting away flab
  • Melting away fat

Already, the claims about this product sound a little too good to be true. For starters, while losing weight can help to minimize the appearance of cellulite in certain people, no product has ever been proven to “melt” it away. Too-good-to-be-true promises such as this one leads one to question just how effective Phenterex is for weight loss. To answer this question, it is important to take a look at its ingredients. 

A Look Inside the Formula

The Phenterex ingredients that could be found within the formula when this review was created included the following:

  • Vitamin B-6,
  • Theobromine,
  • Iodine,
  • Cayenne Pepper,
  • Chromium,
  • Green Tea Leaf,
  • Guarana,
  • Garcinia Cambogia,
  • Chitosan,
  • Gymnema,
  • Banaba,
  • Calcium Pyruvate,
  • Apple Cider Vinegar,
  • Grapefruit,
  • White Willow Bark,
  • Uva Ursi,
  • Coleus Forskohlii,
  • Juniper Berry,
  • Buchu Leaves

While the official site states that the formula contains “the finest and most premium ingredients that are required for optimal weight loss,” there is no clinical evidence provided to back up this claim. Furthermore, none of these ingredients have been sufficiently studied to be proven effective for weight loss. Since this is the case, there is no actual guarantee that you will lose weight from taking this product. 

Potential Side Effects

Furthermore, it should not go unmentioned that certain ingredients within Phenterex may cause adverse side effects in some people. For instance, there are multiple stimulants in the formula, including Green Tea Leaf and Guarana. Stimulants can increase the risk of:

  • Insomnia
  • Heartburn
  • Upset stomach
  • Nausea
  • Headache
  • Mood changes
  • Dizziness
  • Rapid heartbeat
  • Anxiety
  • Restlessness

According to the official product webpage, those who take Penterex should supposedly begin experiencing weight loss within 2 weeks of taking the pills. This pill should be taken in conjunction with a healthy diet and exercise program. At the time that this review was written, a single bottle containing 60 tablets cost $44.98 online.

Don’t Blindly Trust the Claims

Remember, no matter how impressive the manufacturer may make this product sound, there is zero proof that it can help you with your weight loss goals or that it is even safe to take. Moreover, due to the large number of ingredients in the formula, it is unlikely that there are sufficient quantities of each supplement for them to provide any real benefit, even if there was proof that they were effective.

Anyone who is considering taking Phenterex should speak with their medical physician. This is particularly important if you have a known health condition, or if you are currently taking prescription medication, nonprescription products, or herbal supplements.

It is also important to inform your doctor if you are pregnant, nursing a baby or are planning on becoming pregnant. As a general precaution, you should never take any weight loss product without first making sure that it is safe for you to do so.

August 2019 Update: Phenterex is no longer available. An official website could not be found for this product and it was not sold online. It is likely that it has been discontinued, although it may also have been reformulated or is being sold under a different name. Whatever the case may be, it no longer exists as the product reviewed above.


Phentatrim is an advanced slimming  formula from Optimum Nutra Inc. This product supposedly combines three powerful ingredients to “destroy your hunger.” It claims that its formula can offer many benefits including reduced bodyweight, thyroid support, normal blood glucose,energy yielding metabolism, and macronutrient metabolism, which turns carbs,fats and proteins into additional energy.

The three primary ingredients in Phentatrim include: Konjac Root, Chromium, Iodine.

Some research suggests that konjac root(also known as glucomannan) may help to reduce hunger and cravings to help prevent overeating. Chromium is thought to help increase energy, curb hunger and boost metabolism as well as help to metabolize macronutrients (fats, carbs and proteins) into energy. Iodine is believed to support metabolism and thyroid regulation.

When this Phentatrim review was written, the official website for this dietary supplement claimed that“Phentatrim contains only clinically-proven ingredients.” This is a very bold claim, and sadly, it’s not true. While it is true that each of the active ingredients in the Phentatrim formulation are clinically studied/tested, being clinically proven is something else entirely different.

To be “proven” this would mean that the results reported about these ingredients were actual, significant and were able to pass strict regulation imposed by the United States Government. Furthermore,study results would have to be “statistically significant.” In other words, the same results should be expected to occur, regardless of who takes the product.In short, none of the ingredients in Phentatrim have been studied to this“proven” degree.

When manufacturer’s make false claims about their products, it always calls into question their integrity as well as the efficacy and safety of what they’re selling. The Phentatrim formula is neither unique nor revolutionary and there is absolutely no guarantee that it does what the manufacturer says.What’s more, there isn’t any guarantee that taking it will lead to weight loss or even help you in your efforts to shed excess pounds.

That being said, the recommended dose is to take 2 capsules 30 minutes prior to breakfast, 2 capsules 30 minutes before lunch, and 2 capsules 30 minutes before dinner, a total of 6 capsules per day. Each serving should be taken with 1 to 2 glasses of water.When this Phentatrim review was written, a single bottle + 1 free bottle (2 bottles in total), could be purchased on the official Phentatrim website for $59.00. You should first consult with your healthcare provider if you are interested in taking this product.