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The signs of Low Normal Testosterone are hard to miss.

They walk through your door everyday – patients suffering from a host of symptoms including reductions in energy, lean muscle mass, stamina and sexual functions, and an increase in body fat.

Now you have a solution: TestosterZone™


It's time to have “the talk” with your male patients.

Introducing TestosterZone™ from Progressive Laboratories. A breakthrough supplement at the foundation of a 3-step protocol that safely delivers the benefits of increased resting serum testosterone concentrations. Now you have an action plan to benefit your patients and your practice.

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Testosterone Facts:

As men grow older, many find it tough to maintain a physical and mental edge. In fact, even "low normal" serum total testosterone concentrations may be associated with reductions in energy, motivation, initiative, self-confidence, concentration and memory, sleep quality, muscle bulk and strength. Conservative estimates show more than sixteen million men suffer with "low normal" testosterone in the United States. Nutritionally oriented healthcare practitioners have long sought natural methods to increase resting serum total testosterone concentrations and bring back the many benefits of this youthful hormone to the men in their practice who need it most.

  • Male sexual desire, function, performance and potency are dependent upon adequate testosterone status.
  • Healthy serum testosterone concentrations promote human male longevity.
  • Low normal serum testosterone concentrations increase the risk for premature death from any cause.
  • Low normal serum testosterone concentrations increase the risk for an increased level of systemic inflammation.

How Does TestosterZone™ Work?

The ingredients in TestosterZone™ have been shown in clinical trials to attenuate the "stress response" and the secretion of cortisol by partly counteracting the stress-induced activation of the hypothalamopituitary-adrenal (HPA) axis. The same ingredients are associated with increased resting serum total testosterone concentration and improved perceived well-being.

The proprietary TestosterZone™ formula includes carefully selected botanical extracts to augment the effectiveness of the formula. These include Pomella® Pomegranate Extract, SerinAid® PhosphatidylSerine, KSM-66® Ashwagandha Extract, and Astaxanthin. These complementary ingredients provide powerful antioxidants, increase the endogenous antioxidant capacity in humans, and contribute to the maintenance of healthy circulating testosterone concentrations by naturally inhibiting aromatase. The ingredients in TestosterZone™ are safe, effective, and can deliver the many benefits of increased resting serum testosterone concentrations within the normal range when combined with a low-glycemic diet and moderate-to-intense daily exercise. TestosterZone™ is manufactured in the United States under strict 3rd party certified FDA Good Manufacturing Practices (GMP). Progressive Laboratories is proud to announce the launch of TestosterZone™ and it's now available exclusively through nutritionally-oriented healthcare practitioners nationwide.

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Nutritional Info

180 Vegetable Capsules
Product #500


Take three vegetable capsules twice daily, or more, as directed by a health care professional.

Nutritional Support:

Lean Muscle Mass, Physical Stamina, Endurance, Vitality, Mental Performance, Speed of Reaction, Sexual Functions, Libido and Capability.

Download the printable brochure.

Supplement Facts
Serving Size: 3 Vegetable Capsules
Servings Per Container: 60
Amount Per Serving % Daily Value
TestosterZone™ Proprietary Blend 850 mg *
Pomegranate Extract (fruit)(Pomella®), standardized to 50% Polyphenols and 30% Punicalagins;
Phosphatidylserine (SerinAid®);
Ashwagandha Extract (root)(KSM-66®);
Astaxanthin (Haematococcus pluvialis).
*Daily Value not established.
Other Ingredients: microcrystalline cellulose, hydroxypropyl methylcellulose, dextrin, mixed tocopherols (preservative), starch, gum acacia, silicon dioxide, sodium carboxymethylcellulose, medium chain triglycerides, ascorbyl palmitate (preservative), polyglycerol fatty acid esters.
Contains soy.
Healthy man riding a bike

The Protocol

In his new book, The Testosterone Switch, Dr. Kyl Smith fully explains his 3-step protocol for naturally boosting your patients' resting serum testosterone concentrations. The protocol consists of diet, exercise, and supplementation. When these three elements are combined, the body is able to produce healthy levels of testosterone, allowing the individual to feel like a younger version of themselves.

Healthcare Professionals:

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Progressive Laboratories, Inc. is Good Manufacturing Practice Registered by the NSF®, and is an FDA Registered Company.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, prevent, or cure any disease.