Testosterone is an essential hormone for the muscle building process. It promotest protein synthesis and the growth of protein tissues with receptors. Its anabolic effects in building more bone and muscle mass allows testosterone to play a vital role in the growth of muscle mass and increased strength.

All together, testosterone plays a pivotal role for muscle tropism in which this hormone will play and important role in replenishing muscle tissue and fiber broken down during workouts. Hence, testosterone is vital for those looking to increase muscle mass, strength, and to improve muscle tone and definition.

With higher levels of testosterone, you’ll be ready to dominate your workout! Higher testosterone levels help promote protein synthesis and muscle growth, higher metabolism, increased bone density and strength, and may have a positive effect on your sexual well-being!

Tribulus Terrestris: An all-natural compound that delivers powerful results. Not only is this added to help you boost your libido, as it has been used for hundreds of years, but it is also added to increase your stamina, and to increase your sexual desire. This means that you will enjoy the activity more as well as be able to last longer.

D Aspartic Acid: Recent studies have shown a significant raise in testosterone levels. This amino acid was the subject of a published scientific study that has been isolated in human and rat subjects to test its effect on testosterone levels. This published report showed the increases in synthesis and release of testosterone and cAMP. This amino acid has the role of regulating and even producing testosterone within the body!

FenuSterols: This trademarked and patent pending testosterone boosting ingredient is based off the powerful fenugreek seed and standardized to 50% steroidal saponins. The steroidal substances based in FenuSterols were confirmed in 1919 and the Steroidal Saponins in Fenusterols are called furostanol saponins. They have been shown to have an anabolic effects leading to increased muscle mass, strength and improve athletic performance. It can also help boost testosterone and improve metabolism as well.

Eurycoma Longifolia: A flowering plant found in Malaysia, Indonesia, Thailand, Vietnam, and Laos, this extract is also known as Long Jack. It takes the levels of IGF1 in your system to another level. In Malaysia it is commonly known as a symbol of the ego and strength of a man which fits it just right. Not only will your athletic performance increase but the levels of testosterone in your body will go up as well as stop SHBG from sticking to your testosterone. This ingredient also keeps your estrogen levels low and free testosterone levels high as your body gains the strength and definition it needs for your muscle as well as keep your immune system at its best. A couple of added benefits are that this extract will shrink away your fat, keep you from fatigue, and stop your body from becoming exhausted.

Horny Goat Weed: This is a powerful herb that has been added to enhance your sexual desire and provide you with more energy. This will enable you to boost your endurance and stamina even further and increase your enjoyment of the bedroom experience.

Tribulin: Designed specifically to increase testosterone levels, Tribulin is trademarked ingredient created with a 20% standardized extract of saponins. This high quality Tribulus based testosterone booster will help ensure faster and increased production of testosterone in the body!

Bioperine: To create such a fantastically effective formula, this ingredient is the foundation of this product. Absorbing nutrients and enhancing the way your body digests so that you can get the most out of everything you consume, is what this ingredient does best. Not causing you any harm, it makes the walls of your intestines more penetrable so that absorption can happen at a higher rate allowing your body to take advantage of every nutrient that comes in. According to the Journal of Agricultural and Food Chemistry, it has been found that this ingredient can stop fat cells from being formed.

My max jumped up to 255! - July 17th

"I started taking Syntheroid at the beginning of 2008. I do a hard lift but I was only able to lift for a good hour. I have seen an amazing boost on my maxes. My Bench on max before was 225, in a matter of 1 month using 1 bottle and lifting my max jumped to 255. I also experienced major jump is my squat. Before our Christmas break my max squat was 365. But as soon as I started taking Syntheroid I could see how fast my squat was increasing. By the end of my first bottle of Syntheroid my max went from 365 up to 395. In the time since I have started taking Syntheroid I have gained 5 pounds of muscle."

- Trevor H.

SYNTHEROID IS THE BEST TESTOSTERONE BOOSTER IVE EVER TRIED - November 15th

"Syntheroid is by far is the best testosterone booster I ever tried, before Syntheroid I was weak even though I used other products but after I started Syntheroid I got the power and the strength I needed to get the edge I wanted at the gym and I’m so glad that i finally found products that actually works and I mean the products from XPI Supplements in which I tried them all."

- Mohammed Alsamarraie

SYNTHEROID HELPED ME GET BACK IN AMAZING SHAPE! - December 11th

"I have always been involved in sports at a competitive level. I was competing in Judo representing the US at an international level years ago. After retirement, I fell into the grid of the real world and lost motivation to workout. Now, 36 years young, I decided I was going to get back in the gym at all costs. I was told of this product by a friend, who said that it motivated him and gave him solid lean muscle gains. I started with this product about 6 months ago and have now gone from 215lbs to 187lbs. This is below the weight in which I was competing. I have lost unwanted belly fat and seen strength gains that I was getting back in my 20's. I would recommend these products to anyone who is trying to get their life back on track and enjoy the feeling of being successful again."

- Tad Burgess

GREAT PRODUCT! - March 3rd

"Iam 43 years old, and according to my doctor, I am make his job of taking care of my very easy. The results in the photo are only from about 2 months of using the product. I can't wait to see what I will look like after 6 months of using Syntheroid. I am impressed at my results and I would recommend Syntheroid to any with a similar body size as me. I am 5 foot 5 inches, and 165 pounds, but before taking Syntheroid, I was 177 pounds."

- Lem Moore

I GAINED ALMOST 30 POUNDS OF MUSCLE WITH SYNTHEROID - July 29th

"Syntheroid is the most jam up stack I have taken ever.I I was about 6'3" 220 when I started by the end of my cycle I was 6'3" 247 solid except for a ll bit on my stomach but u know how that is. It also sped my metabolism up to give me the cut look I wanted. Truth is this product syntheroid works like it or not"

- Tyler Watts

THIS STUFF IS HARDCORE - August 8th

"after 2 weeks of use I’m more defined harder and more energy"

- Nicholas Martinez

Syntheroid is guaranteed to deliver muscle mass gains! If for ANY reason you are not satisfied, simply contact customer support for instructions on how to return your order for your money back (less S&H). With our iron clad Money Back Guarantee you have virtually nothing to lose. Try Syntheroid today!

Q: When can I expect results with SYNTHEROID?

A: Most users find improved energy and strength during the first 3 days of using SYNTHEROID. Muscle growth and increases in muscle mass will vary depending upon workout intensity and schedules. Individual results will vary, but some see results within the first week while others may take longer to see results.

Q: Will SYNTHEROID cause me to test positive for steroids?

A: SYNTHEROID is not a steroid or prohormone. In fact, SYNTHEROID is created with only safe, all-natural ingredients that will naturally increase your body’s ability to create more testosterone. It does not work with synthetic hormones in any way and will not cause a positive test result for steroids. Before taking SYNTHEROID, we recommend that you consult a physician to see if it is right for you.

Q: How Much is SYNTHEROID?

A: SYNTHEROID normally retails for $95.50, but through this limited introductory offer you can buy SYNTHEROID for just $59.95. That’s 40% off the retail price!

Q: Do I have to exercise and diet to see results?

A: SYNTHEROID works best when it is used in conjunction with a healthy diet and regular exercise. Although SYNTHEROID can help you boost your testosterone levels and cause great results by itself, the best way to get maximum results is by also maximizing your diet and exercise activity.

Q: How quickly will I get my order?

A: To ensure prompt delivery, we ship each order within one business day. Domestic orders are shipped via FedEx Home Delivery (1-5 days), FedEx 2 Day Air, FedEx Standard Overinight, USPS First Class (2-5 days) and USPS Priority (2-3 days). International orders are shipped via FedEx International Mail (10-14 days) and FedEx International Priority (3-5 days, highly recommended).

Q: How does the money back guarantee work?

A: You can receive a full refund for one used bottle and any other bottles in resalable condition less shipping costs. Please contact customer support within 90 days from your purchase date to receive complete instructions for returns.

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