Net Contents
90 Capsule(s)
Serving Size
3 Capsule(s)
Servings Per Container
30
Supplement Form
Capsule
Bar Code (UPC/SKU)
Not specified
Product Version
Not Present
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
6 distinct active ingredients are disclosed in Supplement Facts.
Label includes a proprietary blend, so some individual amounts are not itemized.
3 ingredients report a %DV; 2 meet or exceed 100% DV.
Label states: Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Free From
- Gluten
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 3 Capsule(s) · 1 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin B6(Pyridoxine Hydrochloride) | 5 mg | 250% |
| Magnesium(Magnesium Aspartate) | 17 mg | 4% |
| Zinc(Zinc Amino Acid Chelate) | 15 mg | 100% |
| Trib-X Blend | 830 mg | — |
| Tribulus extract | — | — |
| Oat straw stem & leaf extract | — | — |
| Indole-3-Carbinol | — | — |
| Diindolymethane | — | — |
| Chrysin(Oroxylum indicum Seed Extract) | — | — |
| Nocturnal Growth Blend | 487 mg | — |
| L-Dopa(Mucuna pruriens Seed Extract) | — | — |
| Gamma Aminobutyric Acid | — | — |
| Melatonin | 3 mg | — |
| Mental Relax-5 Blend | 500 mg | — |
| Passion Flower | — | — |
| Chamomile flower extract | — | — |
| White Button Mushroom extract | — | — |
| L-Theanine | — | — |
| 5-Hydroxytryptophan(Griffonia simplicifolia seed extract) | — | — |
Percent Daily Value (DV) based on a 2,000 calorie diet.
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Level 1: Beginner Anabolic switch: Use N-Test 600 Advanced for 2 weeks, then follow with Z-Test for 2 weeks. Repeat this process for 8 full weeks. Advantage: Switching on and off between both products provides a more constant and steady supply of the testosterone needed to achieve and sustain muscular gains over the course of 8 weeks. It also allows the body to maintain a more natural state of homeostasis, to help avoid adverse androgenic/estrogen-related side effects. Level 2: Intermediate Anabolic shift: Use N-Test 600 Advanced alone for 4 full weeks, then use Z-Test alone for 4 weeks. Advantage: Flood your system with an onslaught of testosterone to maximize full anabolic results in a short time frame. Follow with Z-Test to improve recovery. This staggered, dual attack Test approach provides the positive anabolic muscle gains without the estrogen-related side effects. Level 3: Hardcore Anabolic mayhem: Use N-Test 600 Advanced and Z-Test together daily for 4 intense weeks. Advantage: Overload your system with a relentless and constant 24-hour barrage of muscle-yielding testosterone to build more muscle, spike performance, and maximize anabolic results. This aggressive approach creates an environment of anabolic mayhem that takes a hold of your system quickly, to produce extreme results in an accelerated amount of time.
Suggested/Recommended/Usage/Directions
Enhance your Flex Stack with PMD. Use Amplify XL protein with the Flex Stack to help enhance recovery. Add Ultra Pump Fuel or ACG3 SuperCharged+ to Flex Stack to help maximize muscle output and performance. These PMD products are ideal complements to Flex Stack for achieving greater anabolic results.
Suggested/Recommended/Usage/Directions
Suggested Use: Take 3 capsules before bedtime on an empty stomach. Do not consume milk or dairy products 30 minutes before or after taking Z-Test (blocks bioavailability). As a PCT (Post-Cycle Therapy): Use alone for 4 weeks. To be used as part of a physical conditioning program.
Warnings & Precautions
Precautions re: Children
Warning: Keep out of reach of children.
Precautions re: All Other
Do not exceed recommended dose.
Precautions re: Children
Not intended for use by persons under the age of 18.
Precautions re: All Other
For adult use only at bedtime.
Precautions re: Pregnant or Nursing or Prescription Medications
This product is not to be taken by pregnant or lactating women.
Precautions re: All Other
This product is not intended for use by those with a serious medical condition.
Precautions re: Pregnant or Nursing or Prescription Medications
Consult your physician prior to use if you are taking OTC, prescription medication (including but not limited to MAO Inhibitors), or other dietary supplements.
Precautions re: All Other
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. Warning for California residents only: This product contains a chemical known in the state of California to cause birth defects or other reproductive harm.
Precautions re: All Other
Caution: Xtreme Hypertrophic results may occur!
Storage
Storage
Store in a cool, dry place. Avoid excessive heat.
Formulation
Formulation re: Other
Z-Test Versatile Night-Time Anabolic Catalyst: Use Z-Test in conjunction with any testosterone supplement to fully support an increase in anabolic gains. Z-Test can also be used alone as a PCT (Post Cycle Therapy) after an intense on-cycle, specifically optimizing healthy testosterone levels at night while helping to restore your endocrine system back to its natural homeostasis. Additional Estrogen-Suppression Support: Z-Test's formulation is designed with anti-aromatase agents that aid in blocking estrogen, which helps to avoid the negative androgenic and estrogen related side effects commonly associated with natural or artificial sources of testosterone supplementation. Boosts Natural Growth Factor: Z-Test supports the release of more natural growth factor, which the body produces less of with age. Z-Test uses these growth factors to increase muscle hypertrophy, support lean body definition, and improve recovery. Restful Sleep: Z-Test's formulation also includes ingredients used to promote a more relaxing, restful & restorative sleep to aid recovery.
Formulation re: Other
Nocturnal growth blend - Zzz Nighttime testosterone support Healthy testosterone 24-hour healthy testosterone amplifier
Formulation re: Does NOT Contain
Gluten free
FDA Statements
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
FDA Statement of Identity
Dietary Supplement
Other Label Statements
General Statements: All Other Content
Consumer Notice: Fitlife Brands can only confirm product purity when our brands are purchased from authorized retailers, on gnc.com, or on pmdsports.com. For an approved list of retailers, go to pmdsports.com. Like us on Facebook
Brand IP Statement(s) re: (c), (TM), (SM)
Suntheanine is a registered trademark of Taiyo International, Inc.
Manufacturer & Distributor
Manufacturer
PMD
Market Reference
PMD Z-TEST Nighttime Testosterone Support Capsules
GoSupps.com5.0(5)$129.99
PMD Test Z Reinforcer – Nighttime Testosterone Support – 90 Capsules
Vintage and Antique Gifts$89.00
PMD Flex Stack Advanced N-Test + Z Test (2.0 VERSION
eBay$78.48
PMD Flex Stack Advanced
GoSupps.com5.0(6)$279.99
ChargerLAB - Power-Z KM003C Portable USB-C Fast Charging Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Power Bank Tester - Black
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Molybdenum, Serum/Plasma Blood Test
Ulta Lab Tests$112.76
PMD Wave Pro
PMD Beauty4.3(207)$90.30
Prime Screen 7 Panel Instant Urine Drug Testing Cup Kit T-274 ,Detecting 7 drugs simultaneously
Walmart - Preview Rapid Tests4.3(6)$6.99
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
Stoic Nutrition
5.0 (23)Vitamin & supplements store
575 E FM 150 Suite L, Kyle, TX 78640
GNC
4.7 (44)Vitamin & supplements store
5132 Kyle Centre Dr, Kyle, TX 78640
The Vitamin Stack
4.9 (113)Vitamin & supplements store
2255 Kohlers Crossing #100, Kyle, TX 78640
Main Street Nutrition
4.3 (81)Vitamin & supplements store
225 S Main St Unit #103, Kyle, TX 78640
Hays nutrition.
Vitamin & supplements store
2802 Goforth Rd UNIT A, Kyle, TX 78640
Rock's Discount Vitamins - San Marcos
5.0 (289)Vitamin & supplements store
110 E Martin Luther King Dr Ste 118, San Marcos, TX 78666
Academy Sports + Outdoors
4.4 (303)Sporting goods store
5755 Kyle Pkwy Ste 200, Kyle, TX 78640
Cabela's
4.5 (7082)Sporting goods store
15570 S I-35 Frontage Rd, Buda, TX 78610
Research & Studies
Neural population partitioning and a concurrent brain-machine interface for sequential motor function
R Hu, M Powers, ZM Williams, M Modir Shanechi… - 2012 - dspace.mit.edu
… above chance (one-sided Z-test, P < 10−15; Supplementary Fig. 1a). Also, … Z-test, P = 0.14), but was predictive of it during the first movement period after the “go” cue (one-sided Z-test, P …
2012Association of neighborhood disadvantage with Alzheimer's disease pathology and the stability of blood-based biomarker performance
A Myoraku, I Hausle, M Mila-Aloma, P Thropp… - The Journal of …, 2025 - Elsevier
Background Neighborhood-level factors, measured by the Area Deprivation Index (ADI), are linked to comorbidities of Alzheimer's disease and related dementias (ADRD). However, …
20253 citationsEcological Repellent Preparations Based on Natural Polymers with the Addition of Essential Oils Acting on Ticks
M Owczarek, M Wiśniewska-Wrona, K Bartosik… - Insects, 2024 - mdpi.com
… Background: Ticks (Acari: Ixodida) pose a serious medical and veterinary threat as vectors of tick-… The Z-test for two independent proportions with continuity correction was applied to …
20242 citationsNeuropathological changes in the nucleus basalis of Meynert in people with type 1 or type 2 diabetes mellitus
W Jiang, MJ Kalsbeek, F Correa-da-Silva, H Jiao… - Acta …, 2025 - Springer
… of the brain material and medical records for research purposes [… enhance antigen exposure (Supplementary information), whereas … cohorts, Fisher’s z-test was applied to the correlation …
20252 citationsMicroalbuminuria levels are correlated with PELOD scores in critically ill children
MK Wakeham, KL Rajzer, DB Angst… - Pediatric Critical Care …, 2004 - journals.lww.com
… Based on z-test the p value between the CS and PSS were BP (p … Design: We retrospectively reviewed the medical records of five children who were hospitalized in our PICU with acute …
20042 citationsControl over a mixture of policies determines change of mind topology during continuous choice
JM Fine, SBM Yoo, BY Hayden - bioRxiv, 2024 - biorxiv.org
… After DSA, both correlation distances between dynamics were high (dACC: 0.93, PMd: 0.89)… (z-test on randomized DSA loss permutations: dACC: z = -18.45, p < 1x10 -5 ; Figure 4F; PMd…
20242 citations
Related News
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-06-16. DSLD Label ID: 272393. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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