PhenRx Review

PhenRx Review (2021) - Side Effects & Ingredients

Everyone wants to take a pill and magically lose weight. Though you know that’s not possible, sometimes, diet and exercise aren’t enough. If you find yourself in that boat, you may be looking at various supplements to help with weight loss.

PhenRx might have come up in your research, and it claims to be 100 percent all-natural and highly effective. These are impressive statements, and you want to make sure they’re true before you buy and take them.

Here are the facts you need to make an informed decision:

A Look at PhenRx’s BBB Profile

The BBB is an organization that helps with business verification. Consumers can use the site to learn about a particular company, getting insights about reliability, trustworthiness, and transparency.

According to the PhenRx’s BBB profile, the business is located in Tampa, FL, and has been in business for nine full years. This company is not BBB accredited, and there’s not much information provided.

For example, it has no customer complaints, but there aren’t any reviews on it, either. While this isn’t the best, it doesn’t necessarily raise a red flag.

Based on all the information provided from customer complaints and other sources, the BBB gave NexGen BioLabs (makers of PhenRx) an A+ rating. However, it’s unclear why or how it got that great score when there’s no information about it.

What It Is and What It Does

PhenRx is an OTC weight-loss pill formulated and created by the US-based NexGen BioLabs Inc. In fact, the manufacturer offers various products from general health and beauty options to dietary supplements. There are also two affiliate programs, each providing different commission bonuses.

NexGen BioLabs claims that PhenRx can suppress a person’s appetite while raising metabolic rates to promote more fat loss. You can find it as a pill, but there are also topical patches, PhenRx PM, and weight loss drops.

The company primarily specializes in OTC supplements that claim they can be substituted for traditional prescription medicines.

PhenRx was marketed and designed to be an alternative for people who don’t like prescription weight loss drugs.

In fact, PhenRx is promoted as a powerful fat-burning pill that can improve energy and focus levels, reduce appetite, and increase metabolism while allowing people to lose weight fast.

Though PhenRx claims to suppress hunger for 24 hours, here’s no research to support the claim. Some users have had positive results, though.

Ultimately, it seems that the goal here is to exercise properly and use the supplement to boost energy levels. That way, you work out for longer and can see better results sooner. If the claims are true, and PhenRx also suppresses your appetite, it’s easy to see that you could lose weight by eating less and working out more.

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Typically, it’s best to take a look at the ingredients included in the supplement. This shows what it offers and allows you to compare it to others on the market. Plus, you can easily find out if you’re allergic to any of the components before taking it. While there are a few inactive ingredients (silicon dioxide and magnesium stearate), here are the active ones:

1, 3, 7 Trimethylxanthine

This is the chemical name used for caffeine. It’s a stimulant found in various beverages, such as tea and coffee, but it’s also included in cocoa-based products. Research has shown that it can boost energy levels.

While it lists that caffeine is included, it doesn’t tell you how much.


This is a chemical that’s naturally found in your body. As a supplement, it can promote weight loss and improve mood.

Synephrine HCL

Sometimes called bitter orange, Synephrine is a stimulate often connected to weight loss. However, it can increase blood pressure.


This is called hordenine and can promote thermogenesis (heat production). Ultimately, it heats up your body to burn more calories and start a metabolic boost in fat-burning.

Schizandrol A

Studies have shown that this can have minor effects on the nitric and cortisol levels, but more research is necessary. It’s an extract from Schizandra berries and can also promote a euphoric feeling.


5-HTP can help stimulate a better brain response.

Yohimbine HCL

This is often used as a fat burner to boost blood pressure and is made from tree bark. Studies have shown that it might relieve stress.

Potential Side Effects of PhenRx

The side effects of PhenRX are plentiful. For the most part, it can cause:

  • Fatigue
  • Restlessness
  • Nervousness
  • Nausea
  • Headaches
  • Jitters
  • Sleep problems

However, studies have shown that the separate ingredients can also cause issues. For example, 1, 3, 7 Trymethylxanthine can cause:

  • Withdrawal symptoms
  • Mood swings
  • High blood pressure
  • Rapid heart rate

Bitter Orange, by contrast, could lead to:

  • Fainting
  • Migraines
  • Heart attack and stroke
  • Death

Pros and Cons of PhenRx


  • Can boost energy levels
  • Offers a 30-day guarantee
  • Might improve cognitive performance
  • Could assist with athletic performance


  • No officially recognized fat-burning ingredients included
  • Might not suppress appetite for long periods
  • Can be expensive
  • Potentially lethal side effects (too many stimulants)
  • Contains Synephrine, which is banned by the FDA

Where to Buy PhenRx

You may go directly to the NexGen BioLabs website to order PhenRx. When you arrive on the site, you can pick from the traditional pills or the patches. There’s a 60-serving bottle for $39.99, but the company claims you may take three capsules a day. If you do this, you’re only getting enough for 20 days.

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Many online retailers also sell PhenRx. It’s your job to research these companies. Make sure that you are buying from a reputable reseller.

PhenRx Refund Policy

There is a refund policy on the website. It claims that the company wants you to be satisfied with your purchase, and it accepts returns on its items within 30 days of purchase.

With that, you get a full refund minus the shipping and handling. You can get full details on the process of returning your products on the site.

The refund policies for various online retailers might differ. Therefore, if you want to purchase PhenRx from Amazon or eBay, please read their refund/return policy.

What Are People Saying?

You either find people that hate or love PhenRx. There doesn’t seem to be an “in-between.” Here are some of the comments made by people who liked and recommend it:

  • It’s awesome and works great. It suppresses my appetite and helped me lose 3 pounds in a week. I only have to take one pill a day, and it doesn’t cause side effects.
  • Doesn’t weight loss have to be hard work? Not if you use PhenRx and PhenRx PM. It curbs cravings and helped me sleep better at night.

However, the positive reviews are few and far between. Ultimately, most people have neutral or negative things to say about it.

  • Tried it for two months, and it did nothing
  • Has horrible side effects, such as a racing heart and stabbing chest pain
  • Definitely don’t recommend the product
  • Gained weight instead of losing it
  • Got no results at all
  • Doesn’t do anything
  • Don’t take PhenRx if you drink coffee or tea because it gives you jitters
  • Just doesn’t provide any benefits or changes
  • Makes me feel anxious and jittery
  • Couldn’t function from the sick feeling and stomach pains after taking it
  • Feel hungry all the time after starting PhenRx
  • Don’t waste your money

The list goes on and on, and with all the negativity surrounding the supplement, it’s safe to say that it might not be the right choice for you. While it doesn’t necessarily have no benefit, and it’s not a waste of money for some, it is questionable, and there are concerns about it.


NexGen BioLabs is a reputable company and has been around for many years. It manufactures various dietary supplements, but there could be some red flags.

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Consumers have reported trouble contacting the customer representatives at the company. For example, most complaints focus on:

  • Not being able to talk to a person by phone
  • Not getting the products ordered from the website
  • Not getting a refund, even when following directions on the site
  • The company not resolving or responding to complaints

Just because a company has complaints against it doesn’t indicate that it’s illegitimate or a scam.

PhenRx Contact Info

The company does offer plenty of contact information.


  • 3825 Henderson Blvd, Suite 500, Tampa, FL 33629
  • Phone Number: (813) 328-1662
  • Email Address:

You may also visit the company’s social media pages, including Facebook, Google+, and Twitter.

Is PhenRx Worth It?

If you believe that this supplement can help you, please consider this:

  • You don’t know how it might affect you because there are many stimulants included.
  • Customers have experienced severe side effects, even when taking the right doses.

While it is cheaper than other dietary supplements on the market, its claims of being the best fall on deaf ears. Instead of reading what the company says, you must focus on what consumers indicate. With that, the ingredient list and other factors don’t lie.

It’s often better to choose a supplement with a stimulant-free and all-natural formula, especially if weight loss is your concern. With that, you should talk to a doctor and learn about nutrition and choose the right exercise program.

Though weight loss takes time and stimulants can help, it might not be a good idea to try PhenRx. At the very least, take one pill a day and make sure it’s not going to produce side effects.

PhenRx is a mixed bag; there are a few things to like about it, and some that might confuse or worry you. Plus, it contains an FDA-banned ingredient (synephrine), so the risks could outweigh any benefits you get from the product.

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