PhenRx Review – 12 Facts You Need to Know

PhenRx Review – 12 Facts You Need to Know
PhenRx Review – 12 Facts You Need to Know

The supplement claims to promote weight loss while improving the overall well-being of an individual. is reader-supported, so if you'll make a purchase using any of our affiliate links, we may earn commissions at no additional costs to you.

PhenRx claims itself as “highly effective” product that contains a blend of natural ingredients that reduces appetite, boosts metabolism, increase mental focus attention and promote weight loss while improving the overall well-being of an individual. However, during our research, we found that ingredients found to be associated with potentially dangerous side effects. So, does it worth to use the supplement and risk your health?

Our research team dug deeper further to analyze the ingredients to see how scientific research suppose these claims. In addition to that, we focused on the benefits of ingredients and relevant researches which are linked to weight loss and thereby we gathered all other findings to show you the real image of the product.

Read on further to discover our findings…

What is PhenRx?

PhenRx is a non-prescription (over the counter) thermodynamic fat burner that is specially designed as a substitute for prescription-based medication. It's specifically designed as an alternative option for people who aren't interested in taking prescription weight loss drugs.

PhenRx touted to have benefits of suppressing appetite, increasing metabolism, improving mental focus and energy level while helping people promoting weight loss quickly.

The manufacturer claims that it reduces appetite and accelerates thyroid activity which in turn raises metabolic rate and leads towards promoting weight loss. According to the product packaging, pairing PhenRx with PhenRx PM leads to 24-hour fat burning and long-term appetite suppression.

The supplement is available both in the form of pills and weight loss patches.

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About Manufacturer

Phen Rx is invented by NexGen Biolabs Inc, based in Tempa, Florida. The company started back in 2012 with an aim to provide scientifically advanced, effective, therapeutic and safe pharmacological products currently available. In addition to diet and weight loss, the company also manufacture a variety of health and wellness products, some of their well-known products are:

  • Xenitol
  • Flexadrene
  • Invigorate
  • Omega Max
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PhenRx Claims

PhenRx claims include:

  • Helps with extreme weight loss
  • Maximum strength appetite suppression
  • Elevates energy levels and improves mental focus
  • Significantly reduce BMI (Body Mass Index)
  • Targets fat and lipid metabolism in problematic areas
  • Accelerates metabolism and enhances the fat burning process

Scroll below to check out one of the best supplements we've comes across this year.

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PhenRx Ingredients Analysis

PhenRx ingredients include:

  • 1,3,7 Trimethylxanthine
  • Beta-Phenylethylamine
  • Synephrine
  • N,N-dimethyl-4-hydroxyphenyl-ethylamine
  • Schizandrol A
  • 5-Hydroxytryptophan
  • Yohimbine

Other ingredients include magnesium stearate and silicon dioxide.

1,3,7 Trimethylxanthine (Caffeine)

1,3,7 Trimethylxanthine is the chemical name of caffeine that is most commonly consumed psychoactive substance around the world – and for a good reason. It's one of the well-known substances which is supposed to help metabolizing fats from your fat tissues and increase metabolism.

However, drinking coffee or other caffeinated beverages may be ineffective for long-term weight loss benefits and at the point, there is no such evidence that could support its long-term effects, states Healthline.


Also known as PAE, is a chemical found naturally in the body. It's added as an ingredient in many weight loss supplements that claims to improve athletic performance, depression, mental focus and attention while promoting weight loss.

However, recorded studies don't support Phenylethylamine as an effective weight loss supplement, mentions Healthfully.


Well-known as bitter orange that's supposed to help with modest weight loss when combined with a sensible diet and effective workout regimen. It's probably doesn't worth the risk because it contains synephrine, a chemical similar to ephedra which is banned by FDA after reporting for various dangerous health problems.

MayoClinic mentions that stroke and heart attack have been reported in some people when used bitter orange in combination with other stimulants such as caffeine.

N, N-dimethyl-4-hydroxyphenyl-ethylamine (Hordenine)

Also known as hordenine, is a naturally occurring chemical which has chemical configuration very similar to the stimulant in bitter orange. It's added in various weight loss supplements in order to improve athletic performance and weight loss.


Made from the bark of the African evergreen tree, it's traditionally used to treat erectile dysfunction and has become a growing trend among bodybuilder to promote fat loss.

In one study by Israel Journal of Medical Sciences, 20 obese females were subjected to take yohimbine and 1000 calorie diet for a period of three weeks. As a result, women taking yohimbine lost more weight 7.8 pounds (3.6kg) as compared to placebo who lost 4.9 pounds (2.2kg).

On the other hand, two additional controlled studies by Journal of Pharmacology and Internal Journal of Obesity concluded little to no significant effect of yohimbine on weight loss or fat loss.

More research is needed before considering yohimbine as effective weight loss supplement, states Healthline.
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PhenRx Potential Side Effects

According to NexGen Labs, PhenRx is totally safe and not associated with adverse side effects. However, based on ingredients, some may experience the following side effects:

Side Effects of Phenylethylamine

According to WebMD, Phenylethylamine works similar to drug amphetamine so it may cause following side effects:

  • Rapid heart rate
  • Anxiety
  • Agitation

Side Effects of Synephrine

According to RxList, synephrine (bitter orange) may cause:

  • Nasal congestion
  • Allergies
  • Intestinal gas
  • Headaches
  • Never and muscle pain
  • Insomnia

Side Effects of Yohimbine

According to RxList, yohimbine is associated with adverse side effects, including:

  • Anxiety
  • Irritability
  • Sweating
  • Headache
  • Nausea
  • Painful erection
  • Vomiting
  • Dizziness
  • Restlessness
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Does PhenRx Really Help in Losing Weight?

Based on ingredients added to this supplement, it doesn't seem to possible to promote significant weight loss with it. Moreover, a wide range of adverse side effects found to be associated which should never be overlooked.

There are some researches which link PhenRx with weight loss but their impact on weight loss is modest which means, you may notice temporary changes in your body composition but permanent and long-term benefits don't seem to be possible.

It contains caffeine and other caffeinated ingredients which make it unsuitable for individuals who are sensitive to caffeine. So, there are higher chances that results will vary greatly from person to person. You might want to try out a better and high-quality alternative – more on that later.

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How to Take PhenRx

According to product labeling, it's directed to take one capsule twice a day. Take one capsule before lunch and another capsule before dinner.

If you're an “advanced level user” then you can take one more capsule if needed for additional appetite suppression.

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Warnings for PhenRx Users

According to product packaging, general warnings for PhenRx users include:

  • Not suitable for people under 18.
  • Pregnant or nursing mothers shouldn't use this supplement.
  • If you're on medication or having medical conditions then must consult your doctor first before assimilating Phen Rx into your daily routine.
  • Don't use the supplement in combination with alcohol.
  • Discontinue the use of product immediately if you notice adverse reactions and seek medical consultation immediately.
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Customers Reviews

We found mixed customers about this supplement, while some noticed noticeable results, others didn't notice any difference at all. Here is what real customers are saying…

I just started Phen Rx 3 days ago. Since then I have felt more fatigued than usual and I actually think it increases my appetite. Maybe I need to try it longer….
I’ve taken many diet pills and this one made me absolutely sick. I could barely function. Bad stomach pains, sick feeling, I can rarely think of a time I was that sick. Unbelievable! Only took 2 pills. This was not for me. I’ve even had the Phen Rx prescribe to me and felt nothing like this.
Phen Rx patches seem to help but when I take the pill I seem hungry all the time and get nauseated very badly.
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Where to Buy PhenRx

PhenRx can be purchased directly on the official website and through other online retailers. One bottle of Phen Rx contains 60 capsules which are a supply of one month as you're directed to take one capsule twice a day.

  • One Bottle – $39.99 + S&H
The product is no longer available on the official website and other online retailers. It has been gone off from the market, you can try out a better a high-quality alternative.

Money Back Guarantee

The product comes with 30 days money back guarantee so in case you're not satisfied with the product, you can get a full refund excluding shipping and handling charges.

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PhenRx Alternative – Our Recommendation

Remember, if ingredients are herbal and natural then it never means they are totally safe. PhenRx contains a blend of natural ingredients but they found to be associated with potentially dangerous side effects. There are some relevant researches that link ingredients to weight loss but still, their impact isn't so significant that could help you with long-term and effective weight loss benefits. So, would you like to use the supplement to risk your health while losing the bank at the same time?

We recommend using such a supplement that contains clinically-tested and safe ingredients. If you'd like to drop serious pounds while improving your well-being, our recommendation is to use Ultra Omega Burn.

The supplement contains clinically-tested and safe ingredients which not only help you shed down unnecessary pounds but also boosts your self-esteem and confidence level with its remarkable benefits:

  • Maintains blood sugar level and ensure insulin production.
  • Maintains healthy cholesterol level
  • Lowes inflammation to level LDL and HDL
  • Improves gut health and help with IBS
  • Maintains healthy digestive system
  • Prevent fat deposits and elevates energy levels
  • Maintains skin condition by keeping your skin hydrated and balanced

and many more…

The manufacturer also offers 3 bonus ebooks for free ($121 value) which laced with amazing advantages. One ebook contains a collecting of recipes and sweet dishes from expert dietitians and chefs so you don't need to restrict your food choice and still lose weight.

Hormonal balance is a major problem that may negatively affect your health but another bonus ebook with this Fat Burning Usher guides you about all the hormones that are effective for anti-aging and outline food choices that can increase or decrease your fat burning process.

When it comes to pricing, the supplement comes with 3 discount packages so if you decide to start with a test bottle then you'll get $50 discount but if you want to jumpstart your weight loss journey then avail the offer of 2 or 4 bottles that comes with free bottles and up to 67% discount with free shipping worldwide.

To take the risk off your shoulders and better use of your hard earned money, the manufacturer is offering you 365 days 100% refundable money back guarantee so in case you're not satisfied with the product or you've used bottle and still want to get your money back then this won't be an issue, just send back your empty bottles on return address and get your money back with no further question asked!

So, you've nothing to lose but so much to have!

Still, if you're not sure which one is a better choice for you, check out the visual comparison and decide yourself!

PhenRx vs Ultra Omega Burn
Scientifically Proven Ingredients
Side Effects Free
Bonus GuidesTo help you reach your weight loss goals faster
Positive Customer Reviews
24/7 Customer Support
Money-Back Guarantee
Free Shipping
Worldwide Availability


Top Rated Ultra Omega Burn Review – Enjoy Healthy Weight Loss!

Ultra Omega Burn Review – Enjoy Healthy Weight Loss!

Over the past few over-years, our team tackled more than 500 products and one that stands out is premium ...

User rating:
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So, should you run out and purchase the supplement? Well, there are some benefits of the supplements but we're concerned because of potentially dangerous side effect which can't be ignored at all. Moreover, we're bit skeptical that relevant researches don't support the ingredients for significant and long-term weight loss benefits. However, there is always a better alternative to choose from.

Among the best supplements, we've come cross over all the last year, Ultra Omega Burn is our choice. It contains clinically proven ingredients with no side effects associated with them.

It comes with exclusive discount packages and 365 days 100% refundable money back guarantee so you've got 1 full to decide if the product is suitable for you and you're unsatisfied anyway, just ask for a refund with no question asked!

If you're curious to know more about this supplement, then check out our detailed review to learn better.

Emily Stewart Administrator
Emily Stewart is a clinical psychologist who understands the importance of the well-being of an individual on an external and internal level. She believes in communicating the truth as much as possible and through her written skills, gives her the knowledge to inform others on an unbiased basis to make an impact.
Emily Stewart Administrator
Emily Stewart is a clinical psychologist who understands the importance of the well-being of an individual on an external and internal level. She believes in communicating the truth as much as possible and through her written skills, gives her the knowledge to inform others on an unbiased basis to make an impact.
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Not Recommended!

The supplement contains ingredients which are ineffective for significant weight loss benefits and found to be associated with potentially dangerous side effects. Our recommendation is to use our No. 1 Fat Burner that contains clinically proven ingredients and comes with 365 days 100% refundable money back guarantee.

  • Over the counter supplement
  • Elevated energy levels
  • Ingredients don't support by relevant researches for significant weight loss benefits
  • Ingredients found to be associated with potentially dangerous side effects
  • Numerous negative customers reviews
  • Only 30 days of money back guarantee
  • No free shipping
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