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Nexgen PhenRx Review: What To Expect, Side-effects & Results














  • Helps to boost energy.
  • Minor appetite suppression.
  • Affordable pricing.


  • Contains crazy amounts of caffeine.
  • Many users complained of terrible side-effects like insomnia & severe headaches.
  • Heavily promoted as a Phentermine alternative but its effects are not even close.

Complying to many requests sent to us asking for a review on Phenrx and how it is compared to best fat burners on the market.

PhenRx claims it’s a powerful weight loss supplement based on evidence-based ingredients that boost metabolism and gives great results.

But is it?

We decided to analyze every single ingredient included in PhenRx along with using over 1000s of customer data to process the most accurate review possible.

However, you can skip to the conclusion if you just want to see our recommendations.

Also note, we have compiled a top list of the top effective weight loss pills on the market.

Keep in mind, fat burners are not a magical pill that will get you to lose all of your stubborn weight. You need to gradually change your diet plan and nutrition.

The issue with that, there are tons of guides to help but NONE offer realistic plans. Most of it is hard to follow and unreliable.

That’s why we also make sure that diet pills come with an easy to follow a plan. Which will be discussed later in this review.

PhenRx User Reviews

According to Nexgen Biolabs they designed Phenrx PM to be a night time friendly fat loss supplement their claim is it is very similar to Phentermine effect although it wouldn’t cause the overstimulated and insomnia side effects.

PhenRx Mechanism of Action / How does it work

This is directly quoted from the official site

PhenRx is clinically proven to block off & deactivate the Alpha-2 receptor and antagonize alpha 2-adrenoceptors, allowing lipolysis or fat burning to occur while also stimulating lipolysis to continue from beta adrenoceptor agonism, giving you a the ultimate dual receptor fat burning stimulus!

It doesn’t need a Ph.D. nutrition specialist to know this is just pure nonsense. Manipulating scientific words to give the impression that it’s something great however it is not. Marketing is one thing but deception is another. And that is obviously not marketing.

 PhenRx Ingredients

There is in fact much less transparency when it comes to disclosing the ingredients of the supplement regarding the concentration for each component. As an end user, you might not understand 80% of the ingredients but it’s essential for many nutrition specialists to research each and every ingredient and see the safe concentration for each one. The ingredients are Trimethylxanthine, Beta-Phenylethylamine, Synephrine HCL, N-dimethyl-4-hydroxyphenylethylamine, Schizandrol AGreen Tea Extract, Magnolia Bark Extract, Phosphatidylserine, Coleus Forskohlii, Raspberry Ketones, L-Theanine, 7-Keto DHEA, Gamma-aminobutyric Acid, Melatonin, Black Pepper Extract.

Briefed insights on main active ingredients;

Trimethylxanthine is just caffeine. It can be effective as part of a weight loss diet because it raises the speed of the metabolism.

Beta-Phenylethylamine is a mood stimulant that slows down dopamine receptors. It also speeds up dopamine production. It causes a short-lived high effect but is quickly metabolized.

Synephrine HCL is a synthetic appetite supplement

Side effects of PhenRx

Every individual will react differently, but early reports and reviews of phenrx shows;

  • Vivid dreams
  • Headaches
  • Shakiness
  • Swollen limbs
  • Upset stomach
  • Nausea
  • Racing heart

These kinds of side effects are not mentioned on the official website of the product. These were reported by genuine customers from Amazon , ebay and private blogs.


PhenRx User Reviews on Amazon

this is an overall customer review

Amazon users on PhenRx

Click to enlarge each picture and read its content

PhenRx Testimonial

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PhenRx Testimonial2

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We also wanted to give you better insights by comparing PhenRx with on the top rated weight loss pills on the market.

Comparison between PhenQ vs PhenRx



phenQ pills



Clinical Studies


  • Increase metabolic rate based on its thermogenisis effect leading to more energy.
  • Weight loss rate from 3-5 lbs per week.
  • Anti-depressant effect to avoid any depression during weight loss journey.
  • Appetite suppression; avoid food craving


  • appetite suppression
  • energy enhancement and increased mental focus


Side effects


2014None; rare mild headaches Worst-fatburner-reviewsCause heart palpitations and a whole range of side effects (upset stomach and sleeplessness). It’s ingredients (Synephrine) has been linked to causing heart attacks and strokes.
Best Uses


2014Bodybuilding, Energy Boost, Maintaining weight, Weight loss 2014Energy Boost, Maintaining weight, Weight loss
Money-back Guarantee


201430 days Worst-fatburner-reviewsNo
Appetite suppressant 2014Yes 2014Yes
Anti-depressant 2014Yes 2014Yes
Weight loss effect 20143-5 lbs per week Worst-fatburner-reviews1-2 lbs per week
Reorder rate 2014High Worst-fatburner-reviewsLow


2014It can be purchased online from the official website 2014It can be purchased online from it’s official website or GNC
User Reviews

testimonials-on-phentermine 37.5

2014Excellent (read PhenQ user reviews here) 2014Good
Price $69.99 $44.99
Order Now


Official Website

Nexagon official website

Bottom line on PhenRx

The aim goal of PhenRx is to burn fat and increase the metabolic rate without side effects.

However, our research shows that it can help you lose weight but the impact factor of its side effects is huge and intolerable because of “Synephrine HCL”.

It’s recommended seeking other alternatives that don’t provide any danger on your health. Although this product has superior advantages over PhenRx based on recent clinical studies and users feedbacks.

About the author

Adam is a writer, healthcare professional, and he is always active in sharing recent case studies and breaking the mental and physical limits. He dedicated his life to transforming the lives of the skinny, out of shape, scrawny wimpy guys & skinny girls - helping them become healthier, fitter and more confident in their bodies.

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