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Premium Nighttime Anabolic Catalyst

  • Estrogen Blocker (Tribulus + Oat Straw + Indole-3-Carbinol + Diindolymethane (DIM) + Chrysin)
  • Boosts Natural Growth Factors (Tribulus)
  • Promotes Restful Sleep (L-Dopa + Melatonin + Chamomile)

Nighttime Testosterone and Sleep Inducer

Z-TEST® is a dynamic nighttime anabolic catalyst that works thru 3 different pathways. First, Z-TEST’s exclusive Trib-X Blend™ helps increase the body’s natural testosterone levels while blocking estrogen.* Second, Z-TEST® increases the body’s natural growth hormone (GH) level with its Nocturnal Growth Blend, to help increase muscle hypertrophy, support lean body definition, and improve muscle recovery.* And third, Z-TEST®promotes a more restful, restorative sleep with the ingredients found in its Mental Relax-4 Blend.* Z-TEST’s highly versatile testosterone-inducing formula can be used as a PCT (Post Cycle Therapy) after an intense on-cycle, alone at night to facilitate muscle growth, or in tandem with any testosterone supplement to maximize full anabolic gains.* With Z-TEST® utilize the nighttime to create a more effective anabolic environment while you sleep!*

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A Bulgarian herb used to increase both free and total testosterone levels, and as a result, enhances your muscle building capabilities and sex drive. It is believed that it exerts its effects through an increase in Luteninizing hormone (LH) levels, a hormone that signals the body to increase its testosterone production.*


Indole-3-carbinol occurs naturally in cruciferous vegetables such as broccoli, cabbage, cauliflower, brussels sprouts, collard greens and kale. With powerful antioxidant protection, I3C helps to prevent cellular damage caused by free radicals. In addition I3C can help reduce estrogen levels while maintaining a healthy hormonal balance. I3C is also known to support the liver's detoxification processes as well as normal cellular reproduction.*

Diindolymethane (DIM):

DIM blocks the estrogen receptors activity, and by interferring with them, it helps raise the ratio of testosterone to estrogen. With DIM causing more testosterone to be freed, this means a result in a higher sex drive, better moods, muscle building, and bone-strengthening from workouts. Other possible DIM benefits include: the fat burning and the increase of insulin sensitivity, which can help with the uptake of nutrients overall.*


Believed to be an effective aromatase inhibitor, Chrysin supports decreasing your body’s level of estrogen. It has also been shown to induce an anti-inflammatory effect.*


As a precursor to dopamine, a chemical in the brain that is linked to cravings and pleasure, L-Dopa is used to maintain elevated dopamine levels, helping you to resist the urge to overeat at night. L-Dopa may also be used to trigger production of human growth hormone, which in turn builds muscle and reduces fat.*


Produced by the pineal gland from the amino acid Tryptophan, melatonin helps the body know when it’s time to sleep or when it’s time to wake up. It maintains the Circadian Rhythm of our body, which is the built-in 24-Hour “clock” inside our body. The Circadian Rhythm plays an important role when we should wake up and when we should fall asleep, and melatonin is directly linked. When your surrounding is dark, the body produces more melatonin, and when your surrounding is bright, melatonin is reduced. By increasing melatonin production in the evening, Z-TEST® will help make it easier to fall asleep.*


Used to help relieve stress by inducing a relaxing effect without drowsiness, L-Theanine helps reduce mental and physical stress, improves focus and concentration, and enhances mood. Studies show it helps both reduce the time that it takes a person to fall asleep as well as decrease the number of nighttime awakenings due to its relaxing and tranquilizing properties.*


A naturally-occurring amino acid and chemical precursor as well as metabolic intermediate in the biosynthesis of the neurotransmitters serotonin and melatonin from tryptophan. 5-HTP supports appetite suppression, and it's beneficial to help aid sleep.*

Ingredients & Supplemental Facts Label

Ingredients and Supplemental Facts Label

Take 3 Z-TEST® capsules before bedtime on an empty stomach. Do not consume with milk or dairy (blocks bioavailability). For Anabolic Results: Stack Z-TEST® with N-TEST 600® to produce a 24-hour anabolic testosterone boosting stack. As a PCT (Post-Cycle Therapy): Use Z-TEST® alone for 4 weeks. To be used as part of a physical conditioning program.

WARNING: KEEP OUT OF REACH OF CHILDREN. Do not exceed recommended dose. Not intended for use by persons under the age of 18. For adult use only at bedtime. This product is not to be taken by pregnant or lactating women. This product is not intended for use by those with a serious medical condition. Consult your physician prior to use if you are taking OTC, prescription medication (including but not limited to MOA Inhibitors), or other dietary supplements. Do not use in conjunction with alcoholic beverages, when driving a vehicle, or while operating machinery. Do not use if tamper resistant seal is broken. STORE IN A COOL, DRY PLACE. AVOID EXCESSIVE HEAT.

California Residents | Warning: Cancer and Reproductive Harm – www.P65Warnings.ca.gov/Food

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*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.