XPI Syntheroid Review (UPDATED 2017): Don't Buy Before You Read This!

Expert rating: stars-icon     By Matthew (Senior Reviewer) March 14, 2017       Advertising Disclosure

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What is it?

XPI Syntheroid is a workout and sexual performance enhancing supplement that is designed to increase testosterone levels.

Their advertising claims that not only is it useful for burning fat and building muscle tissue, but it also can increase the sexual satisfaction of both the consumer and their partners.

Our panel of male enhancement experts believes that the best product for the majority of users will be Viritenz.

They have had the most success with men that have a variety of sexual and athletic needs. Click here to see all of the potential benefits that taking Viritenz can offer.


XPI Syntheroid Ingredients and Side Effects


D-Aspartic Acid Fenusterols Tribulus Terrestris
Horny Goat Weed Maca Root Eurycoma Longifolia

D-Aspartic Acid: An amino acid that can be found occurring naturally in many soy-based food products, in raw, unpasteurized milk, or it can be synthesized in a lab. It is a protein that can contribute to the production of cartilage, bone, and red blood cells.

Some recent studies have suggested that DAA may help increase testosterone production in the body, which can be beneficial for male enhancement for a number of reasons. Testosterone is a key to the arousal process and contributes to improved erectile function and seminal quality.

Fenusterols: A derivative of fenugreek seeds that is thought to be higher in steroidal saponins – one of the precursors to testosterone. Despite the increased saponin density, there is no data that says that either fenusterols or fenugreek contributes to testosterone function.

Fenugreek is an oddly sweet vegetable that can be used to make food, beverages, cleaning and cosmetics products. Therapeutically it has shown some application for treating dysmenorrhea and diabetes, however it has not been proven to help erectile dysfunction, infertility, or other male sexual issues.

Tribulus Terrestris: A common plant who’s seed pods are known for their sharp spines that give it its nickname “puncture vine.” Tribulus is known as a common ingredient in male enhancement products because of its benefits to the way the brain processes testosterone.

Tribulus terrestris helps the androgen receptors detect the presence of testosterone in smaller doses, initiating the sexual response process even easier than with just testosterone alone. Tribulus has been shown to help improve seminal quality, orgasm intensity, and it helps burn fat and build muscle as well.

Horny Goat Weed: A low-quality stimulant that has developed a reputation as being a potent aphrodisiac, despite data that doesn’t support that idea.

Horny goat weed increases heart rate and circulation, which can in turn benefit the ease with which users develop erections. It has also been related to quite a few potential side effects, some of them serious. These may include:

  • Sweating
  • Gastro-intestinal distress
  • Abnormal heart beat
  • Seizure
  • Stroke
  • Heart attack
  • Death

Maca Root: A very well respected aphrodisiac and male enhancement supplement ingredient. Maca root has been used for thousands of years by native Peruvian people to give them energy and to assist with male sexual disorders.

Maca stimulates circulation, similar to horny goat weed, but it also has been shown to have applications for mental arousal as well. Maca users have shown increased frequency in the amount of times that they get erections, as well as the length of time that they last for.

Eurycoma Longifolia: A plant that has shown an ability to stimulate testosterone production in men. Eurycoma longifolia, also called long jack or tongkat ali, is used for treating erectile dysfunction and infertility in different cultures across the globe.

Tongkat ali appears frequently in male enhancement supplements because it can help with sexual responsiveness and athletic ability both. The sperm quality of men taking eurycoma longifolia is denser and more motile than in men that do not.

Click here to get more data about which male enhancement products will be the most effective for addressing your specific sexual issues.

EDITOR’S TIP:Combine this supplement with a proven male enhancement pill such as Viritenz for better results.

XPI Syntheroid Quality of Ingredients

XPI Syntheroid uses some materials in their proprietary that are very well regarded by our team of experts and others in the male enhancement industry. Unfortunately, they also cut them with lower-grade, less effective ingredients that have a longer history of side effects.

Eurycoma longifolia, maca root, and tribulus terrestris are three of the top-rated male enhancement ingredients on the market today. They have a consistent and proven history of improving male sexual functionality in a variety of ways.

D-Aspartic acid and fenusterols have much less of a proven history. It is possible that they could have some use in a male enhancement blend, however so far that is unproven and our team would need to see more evidence before they were willing to recommend them to our readers.

Horny goat weed is one of the products commonly found in male enhancement products that our team recommends least. Its long history of causing health problems for a certain percentage of its users outweighs any benefits that it may offer. Our team does not recommend any product that utilizes horny goat weed as a part of its blend.

Follow this link to find out how the most potent male enhancement products are able to increase testosterone and testosterone processing in the body.

The Price and Quality of XPI Syntheroid

XPI Syntheroid is sold exclusively online and is available both through their manufacturer’s webpage and through a variety of other internet-based retailers. While prices vary, potential customers should generally be able to find XPI Syntheroid for somewhere in the following range:

  • 1, 180-capsule bottle of XPI Syntheroid capsules: $55.95-$65.95

While this may seem cost effective given the large size of the bottle, if taken as directed this is only enough capsules for a 30-day supply. This makes XPI Syntheroid one of the more expensive male enhancement supplements on the market today.

For information about which male enhancement products have the best reputation with scientists in the supplement community, follow this link.

Business of XPI Syntheroid

XPI Syntheroid is one of the many athletic and sexual enhancement supplements available from XPI Supplements, LLC. They list their contact information as:

Phone Number: (801) 764-8350

Address: 4778 N 300 W Ste. 120

Provo, UT 84604-6541

Email: XPI Supplements does not have an email address that they make available to consumers, however they do have an electronic comments form on their Connect With Us page on their website.

XPI Supplements has a “D” rating with the Better Business Bureau due to the high volume of complaints that they have received about their products. XPI has also been contacted about their business and advertising practices by the FDA multiple times. Complaints included unlisted chemicals in their blends, incorrectly posted dosage amounts, and other labeling issues.

Click here to see how all of the top brands of male enhancement products compare when measured head-to-head.

Customer Opinions of XPI Syntheroid

There are quite a few responses to XPI Syntheroid and the various retailers that sell it from previous customers who are not happy with their experience. The most common rating for XPI Syntheroid on Amazon is one star, and many of the reports were similar to these:

“I have tested low for testosterone before, so I started taking Syntheroid to boost my numbers. After I’d been on it for about three weeks I went back to the doctor and my numbers were totally unchanged.

“This product has no effect on my sex drive. Zero. Zip. Nothing. And it’s way more expensive than the supplement I was taking before.”

“Might as well buy a packet of M&M’s and eat six of those every day, you’ll probably see the same results and it wouldn’t taste so awful.”

Most reviews commented that it did not work as well as they expected it would, if it worked at all. There were some reports of side effects, however they were less frequent. Quite a few people also raised issues with the price, customer service and returns policy of XPI Syntheroid.

To see recommendations for the best male enhancement products for helping you meet your sexual goals, click on this link.

How Does XPI Syntheroid Compare?
  • Product Name
  • User Rating
  • Fast Results
  • Quality Ingredients
  • Good Company Reputation
  • XPI Syntheroid
  • 23/100
Conclusion – Does XPI Syntheroid Work?

About half the ingredients in XPI Syntheroid are ranked amongst the most potent male enhancement products available today. Tribulus terrestris, long jack, and maca root are all proven to be effective and come highly recommended by our team of health and wellness experts.

The rest of their ingredients blend is much less proven, cutting the effectiveness of their quality ingredients by pairing them with additives that are unproven, or, in the case of horny goat weed, that are proven to be bad.

If it were not for the presence of horny goat weed then it would be possibly worth trying to see if it is effective for you. With the inclusion of horny goat weed our team encourages our readers to avoid XPI Syntheroid.

The product that they would recommend for our readers to try is Viritenz. It’s developed a reputation within the male enhancement industry as one of the most potent blends that’s ever been offered without needing a doctor’s recommendation for purchase.

Their ingredients list is unparalleled and has a large amount of clinical data to support the effectiveness of every additive in their blend. Click here to learn more about everything that goes into Viritenz’s proprietary blend.

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