At the time that this PhenUltra review was written, very little was known about this diet pill as no official website was available. Moreover, although the product was once sold at multiple sites, as of July 2020, the product could only be found for sale on eBay, where two bottles (a two month supply) could be purchased for roughly $25.00 + shipping.

Due to the fact that there is no official website and eBay was the only option for buying PhenUltra, this is a very good indication that this diet pill has been discontinued and it won’t be long before it leaves the market.

Potential Benefits

Among the different claims that have been made about PhenUltra and the potential benefits it can provide dieters include:

  • Appetite control
  • Boosted metabolism
  • Enhanced energy
  • Improved mood

Like most nonprescription diet pills that claim to deliver these benefits, the formula works best when it is combined with a healthy diet and regular exercise. It is meant to be used to help a person with their weight management strategy to achieve a long-term goal.

If it does work and delivers on these advantages, it has the potential to make sticking to a calorie restricted diet easier and help a person power through their day, supporting their efforts to remain committed to workouts.

Naturally, the only way to know how beneficial it may be to a dieter is to have a look at its ingredients.

PhenUltra Product Information

According to the supplement facts located on the back of the bottle, PhenUltra capsules are comprised of a propriety formula that is composed of:

  • Caffeine
  • Glucuronolactone
  • Phenylethylamine HCl
  • Synephrine Caprylate
  • Nettle Leaf Extract
  • Yohimbine HCl
  • Picamilon
  • Inositol Niacinate

The suggested dosage is to take 1 capsule before breakfast with water and 1 capsule after lunch with water. It is not recommended for users to take more than 2 capsules per day. However, anyone who has an existing health condition, or who is currently taking any medication, or who is pregnant or nursing, should first speak with their doctor prior to trying PhenUltra. In fact, even if you have no medical concerns, it is still wise for you to consult your physician prior to taking this weight loss supplement, just to be on the safe side.

A Formula Comprised of Several Stimulants

As you may or may not have noticed by observing the above ingredients, PhenUltra contains multiple stimulants (caffeine, yohimbine, synephrine, phenethylamine). Although these substances are likely to help boost energy, which can temporarily increase metabolism and burn calories, they can also cause adverse effects, particularly in those who have sensitivities to stimulants. Unwanted side effects may also be increased in those who combine this product with other stimulant foods and beverages.

With that said, some of these unpleasant side effects include, but are not necessarily limited to:

  • Rapid heartbeat
  • Jitters
  • Headache
  • Sleeplessness
  • Mood changes
  • Anxiety

Furthermore, it should be noted that these diet pills contain synephrine, a stimulant found within bitter orange. While this herb has been studied and some research has found that it may boost metabolism in some people and may be safe to consume in appropriate amounts on its own or with caffeine, other research suggests that combining it with caffeine may increase the risk of increased blood pressure, fainting, stroke, and heart attack in some people.

The bottom line is that not enough research has been conducted on synephrine on its own or in combination with caffeine to truly determine if it is safe or a beneficial treatment for aiding with weight loss.

There is Nothing Unique About This Product

In addition, the ingredients found within PhenUltra are not unique to this diet pill. Several similar appetite suppressing and energy boosting non-prescription weight loss pills contain these ingredients. Even though some studies have been conducted on each of these substances to determine their benefits for assisting in weight loss, there is not enough medical evidence to prove that any of these ingredients are effective in helping a person lose weight. In essence, there is no guarantee that taking PhenUltra will result in weight loss.

Ultimately, this is just one of many weight management aids on the market pretending to be a nonprescription phentermine alternative. Due to this fact, and the fact that PhenUltra has likely been discontinued, it would probably be a better option to find a more reputable OTC diet pill.


Xentrafen is an over the counter (OTC) diet pill. It comes from Nexgen Biolabs. According to the manufacturer, Xentrafen provides those who are seeking to lose weight several benefits. These include:

  • Targeting fat and lipid metabolism on stubborn areas of the body
  • Energy boosting
  • Fat burning
  • Appetite suppression
  • Mental focus
  • Enhancing metabolic function

Xentrafen supposedly helps you control your cravings and targets and blasts away body fat in stubborn areas of the body where it is hard to lose weight. This includes areas like your buttocks, love handles, stomach, thighs, and legs. It is also supposed to help you lose cellulite.

Beware Bogus Claims

While there may be some substance to a few of the claims made about the Xentrafen formula, such as its potential to boost energy, increase mental focus, enhance metabolic function and help to control appetite, it won’t target any specific area of fat on your body. Furthermore, it will not help you lose cellulite.

The reason is that when the body burns off fat, fat is lost all over. There is no specific area that you can target. Typically, the place where you will lose fat first is the area of your body that holds the greatest amount of fat. For the majority of people (but not all) this is their stomach.

As for the cellulite claim, that is no known diet pill (prescription or non-prescription) that can help to eliminate or reduce the look of cellulite. For most people, once you have it, it’s there forever. Certain dermatological treatments (e.g. laser, cryolipolysis, etc.) may help improve the look of it, but even those are not permanent, according to research.

Additionally, do not let this manufacturer trick you into thinking for a moment that taking only Xentrafen will lead to fat loss. Weight loss occurs when you burn more calories than you consume, which means that this product needs to be taken in conjunction with a healthy calorie-conscience diet and regular exercise to deliver any true benefit at all.

The Xentrafen Proprietary Formula

As for its ingredients, every Xentrafen capsule is made up of the following propriety formula:

  • 1,3,7 Trimethylxanthine (caffeine anhydrous)
  • Synephrine HCl
  • N,N-Dimethyltyramine
  • Schizandrol A
  • 5-Hydroxytryptophan
  • Yohimbine HCl.

In spite of providing the ingredients list, no other information was given about this formula on the official product page at the time this Xentrafen review was written. Without any studies to backup the claims made about this diet pill, there is no solid scientific evidence that proves this product is effective or safe for weight loss.

Additionally, it should be noted that this weight loss supplement contains multiple stimulants within its formula. As such, there is a risk of unwanted side effects, including jitters, the shakes and sleep disturbances. Although not everyone who takes this product will experience these adverse effects, the risk of experiencing them (or others not listed) increases in those who are sensitive to these substances or who consume other products (foods, beverages or supplements) containing stimulants (e.g. caffeine).

When this review was written, a single month supply of Xentrafen sold online for $44.99. While this is certainly not the cheapest OTC diet pill on the market, it is not the most expensive either. That said, if you feel that this is a product that is worth your time and money to try, it would still be in your best interest to consult with your healthcare provider before taking it to be on the safe side.

Xentrafen Update March 2020

Xentrafen appears to have been discontinued. The official product page cannot be found and even popular retailers, like Amazon, that once sold it, do not have it in stock. You can still find information about the product and read customer reviews, but in all other ways it appears to have disappeared from existence.

Considering the false claims that the manufacture made about the product being able to target specific areas of fat on the body and the claims about cellulite, it is for the best that Xentrafen is gone to make room for more reputable products. Products with unachievable claims such as these are frequently short-lived. You will find that there are plenty of other respectable non-prescription diet pills available with fewer stimulants that can help you reach your weight loss goals.


Shredderall is a dietary supplement from Premium Nutraceuticals. It has been formulated to provide those who take it with an all-in-one scientifically backed complex to assist in the achievement of a healthy body composition. It also supposedly works to boost your cognitive performance, and provided you with long lasting energy. According to the manufacturer, in order to enjoy all these benefits, you need only take one of the small orange capsules a day.

When this Shredderall review was written, each capsule contained the following ingredients: Vitamin B3, Vitamin B6, Vitamin B12 and a Synergistic Shredderall Matrix (Yohimbine HCL, Vinpocetine, Hordenine HCL, P-Synephrine, DMAE, Theacrine, Caffeine, Phenylethylamine HCL).

Based on this above list of ingredients, it is clear that Shredderall contains many stimulants, for instance: caffeine, phenylethylamine, Synephrine, hordenine and Yohimbine HCL. As such, although this means that you are likely to experience an increase in mental focus and are likely to feel more alert – which could help you stick to your dieting and exercising goals – at the same time, these benefits might come at a cost.

The more stimulants there are in a diet pill formula, the greater the risk of unpleasant side effects. Among these unpleasant side effects include, but are not necessarily limited to: increased heart rate, heart palpitations, difficulty sleeping, insomnia, anxiety, headache, upset stomach, jitters, restlessness and high blood pressure.

In fact, the risk of high blood pressure and other dangerous cardiovascular effects, such as fainting, heart attack and stroke, are also at an increased risk as Shredderall combines both caffeine and synephrine.

Due to the number of stimulants in this weight loss pill, you should definitely speak to your doctor before taking it, even if you are in perfect health. Moreover, if you do decide that Shredderall is the right choice for you, be sure to avoid ingesting any other stimulant products, foods or beverages while taking this dietary supplement. The last thing you want to do is add even more stimulants to your body.

In regard to use, the official product page for Shreddrall, when this review was written, recommends that you first assess your tolerance by taking 1 pill per day, 30 – 45 minutes before your first meal. If you tolerate this well, you can then proceed to add a second capsule to your day, taking it 4 to 6 hours after the first one. Users are cautioned not to take more than 3 capsules in a 24 hour period.

That being said, it would likely not be wise to even take 3 capsules per day, as the amount of caffeine in this dose would be about equal to over 6 cups of coffee. Plus, remember, caffeine isn’t the only stimulant in this pill.

When this review was written, a single bottle of Shredderall sold on Amazon for $39.97.


PhenterMaxx is another OTC (over-the-counter ) weight loss supplement created as an alternative to prescription diet medications like Phentermine and Adipex-P. It is manufactured by Ultimate Weight Loss Labs and supposedly works to suppress appetite, super-charge your energy, burn fat without depleting muscle, and provides you with more control over your mood.

The main active ingredient in PhenterMaxx is phenylethylamine HCl. Phenylethylamine (also known as PEA), is a common weight loss ingredient and is often found in many OTC dietary supplements designed as Phentermine alternatives. It is a stimulant that is believed to help increase alertness, improve mood and concentration. It is also commonly believed that it helps to suppress appetite, however, there isn’t enough clinical evidence to back up this claim.

Furthermore, PEA is frequently used in combination with caffeine as it can enhance the effects of caffeine, which may lead to the burning of more fat when combined with physical activity. PhenterMaxx contains 150mg of caffeine anhydrous per serving (1 tablet). In addition to caffeine and PEA this product’s pharmaceutical grade formula also contains N-Methyl-B-Phenylethylamine, Yohimbine HCL, Theobromine Anhydrous and Synephrine.
Based on this ingredients list, it’s clear that the formula contains multiple stimulants, including synephrine, a naturally occurring stimulant in bitter orange (citrus aurantium), which not only enhances the effects of caffeine, but can also lead to more serious adverse effects, such as high blood pressure, heart attack and stroke.

That being said, while such dangerous effects may not be a serious threat for most individuals who follow the directions of this product, it should be noted that there is a risk of experiencing other unpleasant side effects associated with these stimulants, such as jitters, anxiety, insomnia, mood changes, upset stomach, headache, rapid heartbeat, and so on. To help reduce the risks of these effects, it would be wise to avoid taking any other stimulants (ex. drinking coffee, tea, energy drinks, soda, etc.) while using PhenterMaxx.

The recommended directions are to take 1 tablet after breakfast and 1 following lunch. You should not exceed 4 tablets within a 24 hour period. For optimal weight loss results, this product should be combined with a healthy and calorie-conscious diet and regular exercise. Taking PhenterMaxx without making additional conventional weight loss methods is unlikely to lead to any measurable fat loss success.

Presently (when this review was written) PhenterMaxx could be purchased on Amazon for $59.99. Be that as it may, speak to your healthcare provider prior to taking this product.


Phen-ES is a diet pill that has been created to improve mood and increase mental focus. It is marketed as a pharmaceutical grade fat burner of the highest quality. The front label of the bottle advertises that the product contains Phenylethylamine Hydrochloride, a stimulant that works in the body to make certain chemicals that help with athletic performance, depression, mood, and weight loss.

According to the Amazon product page for Phen-ES – at the time that this review was written – the ingredients in this formula help with appetite suppression, fat burning, boost daily energy and improve mood. The ingredients include: B-phenylethylamine HCL, Yohimbine HCL, Caffeine, Theobromine Anhydrous.

The key ingredient is B-phenylethylamine HCL, also known as PEA. This ingredient is from where Phen-ES takes its name. By using “Phen” in its name this also works in the product’s favor in terms of being considered an OTC alternative to the prescription diet drug Phentermine. As was previously stated, PEA stimulates the body to create certain chemicals that play a role in both psychiatric and depression conditions.

Unfortunately, although PEA has been studied to determine its effects on depression, mood, weight loss and focus, among other conditions, there is insufficient evidence to prove that it works on any of these conditions. Further scientific study is required to know exactly what effects – good or bad – this substance has on humans.

It should also be noted that this ingredient has been linked to many negative side effects due to the fact that it works in a similar way to the drug amphetamine and may cause similar unpleasant effects. These may include: agitation, anxiety, rapid heart rate and so on.

Furthermore, this product also contains caffeine, which is another potent stimulant that affects the nervous system. It can cause similar effects to PEA as well as insomnia, jitters, restlessness, upset stomach and more.

Be advised that due to the contents in the Phen-ES formula, this product may not be safe for individuals with psychological disorders. For instance, PEA may cause individuals with Bipolar disorder to become manic and may worsen the symptoms of hallucinations and delusions for those with schizophrenia. It should also be avoided by women who are pregnant or nursing. To be on the safe side, you should talk with your healthcare provider prior to taking this non-prescription diet pill to make sure it is safe for you.

At the time that this Phen-ES review was written, a single bottle containing 60 tablets cost $44.99 on Amazon.


Traxafen is a non-prescription fat burner and appetite suppressant manufactured by AXA Neuroscience. It supposedly works to assist those seeking to lose weight, control their food cravings, boost their mental focus, increase energy, enhance fat burning and thyroid output, and amplify metabolism to produce raid weight loss results.

When this review was written, a one-month supply of Traxafen, containing 60 capsules, could be purchased on Amazon for $35.00. While this is certainly a decent price for an OTC weight loss supplement, the question remains: is it worth it?

The only way to judge the efficacy and safety of a product, and determine how well it can live up to its claims, is to analyze its ingredients. The Traxafen formula is composed of the following: Trimethylpurine, Synephrine HCL, Hordenine HCL, Schizandrol, 5-HTP, Yohimbine HCL.

More specifically, the following is a brief explanation of how each of these ingredients is said to benefit those seeking to shed excess pounds.

Trimethyplurine affects the central nervous system and may help to boost metabolism, as well as increase energy levels and physical performance during exercise. Synephrine is a stimulant that naturally occurs in citrus aurantium (bitter orange). It also affects the central nervous system and makes the heart beat faster by increasing blood pressure. Hordenine, also found in citrus aurantium, is thought to have significant fat burning effects and is believed to be capable of enhancing metabolism. Schizandrol is said to increase dopamine in the brain, which, in turn, enhances mental alertness, clarity and focus, while also boosting energy levels. 5-HTP is thought to raise the production of serotonin and help suppress appetite. Yohimbine is believed to boost blood flow and improve workout performance by stimulating the body’s energy levels.

Unfortunately, while it is possible that caffeine can increase mental alertness and boost physical performance by improving energy, none of these ingredients (including caffeine) have ever been clinically proven to effectively aid in weight loss or cause fat loss. In essence, there is no solid scientific proof that taking Traxafen will help you lose weight.

Users are recommended to take 1 capsule, two times per day, 30 minutes before meals. It is important to follow the dosage recommendations, not only to ensure that you are properly using the product to achieve its maximum benefit, but also to lower the risk of certain unpleasant side effects.

Traxafen contains stimulants and ingredients containing stimulants. Trimthylpurine contains caffeine. Although not as potent as caffeine anhydrous, it can still cause certain adverse effects in some people, such as rapid heartbeat, jitters, sleeplessness, etc. In addition, both yohimbine and synpherine are ingredients that boost the effects of caffeine, which means that both its positive and negative side effects are enhanced.

Err on the side of caution and first speak with your medical practitioner before taking Traxafen.

Phenoral Maxx

Phenoral Maxx comes from the same manufacturer who makes Phenoral. It is marketed as a maximum strength weight loss supplement and, according to the official product website, the formula is three times stronger than the original Phenorla formula. It includes all the “fat shredding benefits” of the original product and has amplified them to provide even faster and more dramatic weight loss results. The claim is that Phenoral Maxx has both appetite suppressing and energizing benefits to help users burn stubborn fat.

The Phenoral Maxx formula contains the following ingredients: Phenylethylamine HCl, Synephrine HCl, Yohimbine HCl, Theobromine Anhydrous, N-Methyl-B-Phenylethylamine HCl, Methylsynephrine HCl. The ingredients in the Maxx version and original Phenoral are the same. The difference between the two is that the propriety blend in the Maxx product is 150 mg per 1 tablet, while the original product contains only 50 mg per tablet. However, it is also important to point out that both the Maxx and original Phernoral versions each contain the same amount of caffeine anhydrous (150 mg).

According to the official website, the key ingredient in Phenoral Maxx is Phenylethylamine. This active ingredient reportedly triggers reactions in the brain that bring about feelings of wellbeing and energy. In addition to phenylethylamine, the other ingredients are also supposed to help a person achieve their fat loss goals quicker.

For instance, theobromine is believed to assist in the stimulation of the heart and improve blood flow. Caffeine works to aid in increasing mental alertness and may also enhance exercise performance, increasing fat burning potential. Yohimbine bark is thought to help decrease abdominal fat, control stress by amplifying epinephrine and lowering cortisol levels. Methylsynephrine can boost energy and adrenalin and may help to suppress hunger.

Although it is likely that Phenoral Maxx will raise energy levels and improve mental alertness, there is no guarantee that its effects will aid in the reduction of body fat. None of the ingredients within the formula have been clinically proven effective or safe for weight loss.

Furthermore, this product contains more than one stimulant, which may increase the risk of certain negative side effects in some people, particularly those who are sensitive to caffeine. Insomnia, jitters, restlessness, rapid heartbeat, heart palpitations, digestive upset, headache and anxiety are examples of some of the side effects that may occur.

Additionally, bear in mind that Phenoral Maxx contains both caffeine and synephrine, a combination that the FDA warns could be dangerous, even for healthy individuals. The reason is synephrine can enhance the effects of caffeine, which can cause more stress on the heart. Even people who usually have normal blood pressure may experience a spike in blood pressure when taking a supplement that combines these two ingredients.

Definitely talk to your doctor before taking this product to make sure it is a safe choice for your weight loss plan.

Users are instructed to take 1 tablet in the morning and 1 after lunch. No more than 4 tablets should be taken per day.

At the time that this review was written, a single bottle of Phenoral Maxx containing 60 tablets cost $19.99 at Amazon.


PhenRx claims to provide individuals seeking weight loss with appetite suppression, energy enhancement, mental focus, fat burning, enhanced metabolic function, a significantly lowered body mass index (BMI) and “extreme weight loss”. The official Nexgen Biolabs product page says that the PhenRx formula can increase metabolism, significantly curb appetite, burn fat in problematic areas, and stimulate the thydroid.

At the time this review was written, one bottle of PhenRx containing 60 capsules cost $44.99. Each one of the PhenRx capsules contains 377mg of a propriety blend that is comprised of: 1,3,7 – Trimethylxanthine, Beta-Phenylethylamine, Synephrine HCL, N,N-dimethyl-4-hydroxyphenylethylamine, Schizandrol A, 5-Hydroxytryptophan, and Yohimbine HCL. Additional ingredients include Magnesium Stearate and Silicon Dioxide.

While most of these ingredients are commonly found in many OTC diet pills on the market, and some research has shown that these substances can offer some benefits for weight loss, sufficient evidence is lacking to back up claims that they are safe and effective for reducing weight. Moreover, what is particularly disappointing about the Nexgen Biolabs page for PhenRx is that a science page is provided, which goes into detail about how the product supposedly works and helps a person lose weight, but at no point does it make any specific reference to the ingredients used within its proprietary blend, nor does it cite any studies.

The recommended dosage is to take 1 capsule before lunch and 1 capsule before dinner. Users who have assessed their tolerance can take up to one more capsule per day if they require additional appetite suppression.

This dosage recommendation instantly raises some red flags. The reason is that based on the ingredients list provided in the supplement facts sheet, PhenRx contains multiple stimulants including 1,3,7 – Trimethylxanthine (caffeine), Yohimbine HCL, and Synephrine. Since it contains more than one stimulant ingredient, it increases the risk of side effects, such as insomnia, anxiety, jitters, mood swings, headache, etc. Considering it is recommend that you take 1 capsule before dinner, it seems more likely that you would increase your chances of having difficulty sleeping.

Moreover, synephrine is a stimulant found in bitter orange and the FDA has warned that it can lead to severe cardiovascular side effects in certain individuals, including increased blood pressure, fainting, stroke and heart attack, especially when used in combination with caffeine.

It would be wise to first speak with your doctor before taking PhenRx, particularly if you have sensitivities to stimulants, are currently taking other medications or supplements, or if you have a medical condition.