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Customer Health Rating: 2,7/5


Zyrexin Review: Is It Safe?

Zyrexin is a male libido and erectile health pill that calls itself the world’s strongest sexual enhancer and the number one selling sex pill. They claim that their product is formulated to increase testosterone production, which is one of the keys to the male sexual response process.

Zyrexin is an over the counter pill but they promote its abilities as a PDE-5 inhibitor similar to Viagra and Cialis. PDE-5 inhibitors help increase the blood flow to the penis, as do other circulatory aids found in Zyrexin’s proprietary blend.

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Who Makes It?

Zyrexin is produced by a lesser known supplements and weight loss products manufacturer called Superbalife International, LLC. They are a smaller manufacturer, and there is absolutely no accuracy to their claims that they are the best-selling sex pill in the world.

They offer no evidence to back that statement up, and all evidence points to that statement being blatantly false. There is not a single major American supplement retailer, including Amazon, GNC, Walgreens, and Walmart, that lists Zyrexin in their top ten male enhancement products, let alone as their best seller.

There is also no evidence behind their claim that they are the world’s strongest sexual enhancer. This claim could refer to any number of specific factors, however Zyrexin declines to specify what those factors may be or to show any evidence that they may be accurate in any capacity.

Potential customers should also note that they have a 100% negative customer feedback rating with the Better Business Bureau, and a number of fraudulent charges to users’ credit cards have been reported.

How (and) Does It Work?

Zyrexin does not offer very much information about their ingredients, nor do they offer any specific details about its effects. They do not mention if they are a testosterone enhancement product, a circulatory aid, or mental performance pill.

Their advertising does not even mention specific effects like improved erections or higher libido levels. The closest that they get to making a definitive statement about what is in Zyrexin and how it works is one mention in their FAQ’s page that it contains butea superba, which they call a PDE-5 inhibitor.

PDE-5 inhibitors are chemicals that block the negative effects of the enzyme PDE-5 on the smooth muscle tissue of the penis. Viagra, Cialis, and other well-known prescription erectile dysfunction medications are all considered PDE-5 inhibitors, however there is absolutely no reliable scientific data that suggests that butea superba may be one as well.

Despite this lack of clinical validation, Zyrexin still claims that butea superba is the only natural PDE-5 inhibitor. They offer no other information about how their product works.

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What’s Inside of It and Are There Side Effects?

Most reliable male enhancement products publish their ingredients on their website and as part of their promotional materials, in addition to posting it on their bottle as legally mandated. Zyrexin not only does not have any links or explanation of what may be inside of it, but they deliberately neglect to publish any contents or dosage information.

They only mention one ingredient in all of their promotional materials, and even then they do not offer any indications of dosage amounts. There are very few products on the market that offer less information about their product than Zyrexin does.

The only ingredient mentioned on their website is:

Butea Superba: A creeping vine originally cultivated in Thailand and Southeast Asia. Local home remedies call butea superba an aphrodisiac, however there is no scientific data that supports these claims.

Despite the fact that the promotional materials for Zyrexin call butea superba a PDE-5 inhibitor there is no other information that corroborates this. In fact, all scientific studies into the potential benefits of butea superba have definitively shown that it does not impact erectile function.

If anything, it is possible that butea superba may actually decrease testosterone production. Mice that it was tested upon showed slightly lowered T levels, however there have not been enough human trials to say if this this effect carries over to humans or not.

It is not known how safe butea superba consumption is, especially in the long term. In the short term the only side effects that have been reported tend to be mild and gastrointestinal in nature. Long-term, however, there are some worries that Zyrexin could possibly have some mutagenic effects.

Some of the mice in the previously mentioned study did show changes in genetic makeup. It is possible to administer a lethal dose of butea superba, however those quantities tend to be so high that it is rarely an issue in humans.

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What’s Good About It?

If Zyrexin’s claims that butea superba can act as a PDE-5 inhibitor are accurate, then it would be very effective as an erectile aid for a specific subset of customers. There is no publically available data that supports this, but it is possible that Zyrexin has performed independent studies that they have not chosen to disclose.

What’s Bad About It?

The biggest issue with Zyrexin is their lack of transparency. Most reputable brands of supplements are eager to share their ingredients and dosage information with consumers as this is one of the primary ways to demonstrate the quality of their product.

Publishing your ingredients shows customers that you are not using cheap, short-term, or filler ingredients in your products, and that there is nothing in them that will have a negative impact on their health. The fact that Zyrexin goes to such lengths to hide this information is extremely concerning, especially in light of their extreme, unverifiable claims.

Zyrexin is not the best-selling penis pill in the world, and there is very little reason to believe that they are even particularly close. Their claims that they are the strongest sexual performance enhancer, while more vague, are also totally unsupported and are thought to be inaccurate.

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EDITOR'S TIP: Check our list of approved male supplements to make a right purchase decision!
Wrap Up:

Zyrexin make bold, unprovable claims about their products that, when examined, do not seem to be true. They are not the best-selling, nor the most powerful, male enhancement product on the planet.

Their main ingredient, butea superba, also fails to live up to Zyrexin’s advertising claims. It is not thought to be a PDE-5 inhibitor as they claim, nor is there scientific data that supports the rumors of it as an aphrodisiac.

Customer Opinions

The most common rating for Zyrexin on each of the Walmart, CVS, and Rite Aid websites is one star. It is no longer carried on Amazon, due in large part to the quantity of negative feedback that they received about the product. Here are some of the responses from previous Zyrexin customers, as taken from the web sites of their third-party distributors:

“Avoid this at all costs! About 45 minutes after I took the pill I was shaking, sweating, and on the verge of having and anxiety attack. I made myself throw up to get it out of my system, but it didn’t really work – it was hours until I finally settled down.”

“Made me sick as a dog. High heart rate, chills, upset belly. I will not take another one.”

“I bought this for my boyfriend because even though he’s only 30 he’s already having some ED issues. I realized what a mistake it was like 30 minutes after I gave it to him – he was pale, shaking like crazy, and felt cold and clammy to the touch. I almost called 911 but he said he wanted to ride it out. I was scared but trusted him and he’s ok now. The pills went STRAIGHT into the trash though.

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  • Effectiveness52%2.6/5
  • Consumer reviews48%2.4/5
  • Quality of ingredients52%2.6/5
  • Cost60%3/5
  • Money Back58%2.9/5
  • Overall Rating54%2.7/5
Bottom Line

It is our team’s policy not to recommend any product that will not disclose their ingredients. One of the main reasons for this is because it is not safe for people to take supplements when they do not know what is inside them. This can lead to potentially dangerous side effects or negative reactions, such as the ones mentioned above.

Many of the other behaviors of Superbalife International are concerning, as are the dishonest marketing tactics and clearly inaccurate advertising claims. Most worrisome, however, are the customer responses. They are disturbingly similar in the consistency with which they describe the negative reactions to Zyrexin, and as such it would be unethical for us to encourage our readers to try it.

The most trusted brand within the male enhancement industry is Viritenz. It has an excellent reputation with its clients, critics, and industry professionals.

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Top Rated Male Enhancement Supplement of 2024

  • Viritenz4.9/5 stars-icon
  • Effectiveness95%4.7/5
  • Consumer reviews93%4.5/5
  • Quality of ingredients96%4.7/5
  • Cost91%5/5
  • Money Back89%5/5
  • Overall Rating95%4.9/5

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