Mancore’s Testosterone Replenish promises to boost testosterone levels for aging men, or men just looking for extra intensity. Testosterone Replenish manufacturers claim this product offers enhanced libidos, improved stamina, and better muscle tone. Basically, you’ll feel young again.

Sounds great, but what does this product have that hundreds of other testosterone supplements don’t?

The Ingredients

Testosterone Replenish uses eight natural ingredients to promote higher testosterone levels. But do they work?

Zinc (7.5 mg) is an essential mineral that ensures that the body functions. It has an active role in various biological functions including hundreds of catalytic activities, protein synthesis, and muscle growth and repair.[1]

While zinc is needed for a healthy body, it’s unclear whether it has any direct influence on testosterone production.

Tribulus terrestris has been used for centuries to boost libido. While many men claim it works, clinical studies so far have only shown it to boost libido and performance in rats.[2]

White button mushroom helps promote free testosterone levels by inhibiting the aromatase enzyme, which transforms testosterone into estrogen.[3] This results in more usable testosterone which in turn promotes greater energy and libido.

Long jack root, often called tongkat ali or the “Asian Viagra”, this ingredient is traditionally used to boost male libido and performance. Like tribulus terrestris, long jack root is shown to work on animals,[4] but its effects on human males is not clinically proven. That being said, many men swear by this ingredient.

Cordyceps sinensis has been found to boost testosterone production in male mice.[5]

Stinging nettle leaf, otherwise known as urtica dioica, is thought to boost testosterone levels. It does this by binding to human sex hormone binding globulin (SHBG), preventing it from binding to and transforming testosterone.[6] However, this research is not definite as another study found that stinging nettle leaf had no effect on testosterone levels in men who took it.[7]

Bee propolis is a honey bee secretion that raises testosterone levels in animals.[8]

Dehydroepiandrosterone (DHEA) (25 mg) is a precursor hormone that turns into testosterone.[8] DHEA production peaks in the late-20s for most people. Many people believe that raising DHEA levels will result in more testosterone, but studies are inconclusive.

There are some effective ingredients here, but most ingredients have only been shown to be effective in rats. Also, since the ingredients are included in a blend, it’s difficult to determine individual ingredient dosages and thus how effective they may be.

Testosterone Replenish User Feedback

User reviews are helpful when a product’s formula isn’t obviously effective. Unfortunately, we weren’t able to find any Testosterone Replenish user reviews. Consequently, it is still up in the air as to whether Testosterone Replenish is actually effective.

Are There Potential Side Effects?

DHEA can cause hair loss and high blood pressure. Also, other ingredients are known to cause stomach pains, profuse sweating, and nausea.

Drinking plenty of water should help dilute the intensity of any side effects.

How Do I Use It?

Take one capsule in the morning 15-30 minutes before breakfast. Then take another capsule in the afternoon 15-30 minutes before dinner.

Drink at least 8 ounces of water with each capsule.

Where Can I Buy It?

Testosterone Replenish is exclusively sold at Complete Nutrition stores across North America. While the price may vary with location, expect one bottle of 120 capsules to set you back $90 – $100.

Is There Any Sort of Guarantee?

Complete Nutrition does not list any guarantee for Testosterone Replenish. With a formula that isn’t exactly solid and no consumer reviews, it is very disappointing not to see a guarantee.

Should You Try Testosterone Replenish?

Testosterone Replenish may not be ready for its moment in the spotlight. It’s difficult to tell if the product is effective from its ingredient list and lack of user reviews. And with no guarantee, you are leaving a lot to chance when it comes to Testosterone Replenish.

For these reasons, we suggest not trying Testosterone Replenish until there are more user reviews about its safety and effectiveness. In the meantime, there are testosterone supplements that can take Testosterone Replenish’s place.


[1] Office of Dietary Supplements – National Institutes of Health. “Zinc.” Accessed 3.29.2013.

[2] See Gauthaman, K., P. G. Adaikan, and R. N. V. Prasad. “Aphrodisiac properties of< i> Tribulus Terrestris extract (Protodioscin) in normal and castrated rats.” Life Sciences 71.12 (2002): 1385-1396.

[3] Chen, Shiuan, et al. “Anti-aromatase activity of phytochemicals in white button mushrooms (Agaricus bisporus).” Cancer Research, 66.24 (2006): 12026-12034.

[4] For example, Ang, Hooi Hoon, et al. “Effects of Eurycoma longifolia Jack (Tongkat Ali) on the initiation of sexual performance of inexperienced castrated male rats.” Experimental Animals, 49.1 (2000): 35-38.

[5] Chen, Yung-Chia, Yuan-Li Huang, and Bu-Miin Huang. “< i> Cordyceps sinensis mycelium activates PKA and PKC signal pathways to stimulate steroidogenesis in MA-10 mouse Leydig tumor cells.” The International Journal of Biochemistry & Cell Biology, 37.1 (2005): 214-223.

[6] Schöttner, Matthias, Dietmar Ganßer, and Gerhard Spiteller. “Lignans from the roots of Urtica dioica and their metabolites bind to human sex hormone binding globulin (SHBG).” Planta Medica, 63.06 (2007): 529-532.

[7] See Safarinejad, Mohammad Reza. “Urtica dioica for treatment of benign prostatic hyperplasia: a prospective, randomized, double-blind, placebo-controlled, crossover study.” Journal of Herbal Pharmacotherapy, 5.4 (2005): 1-11.

[8] For example, Yousef, Mokhtar I., and Afrah F. Salama. “Propolis protection from reproductive toxicity caused by aluminium chloride in male rats.” Food and Chemical Toxicology, 47.6 (2009): 1168-1175.

[9] Mayo Clinic. “DHEA.” Accessed 3.29.2013.

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