Z-Test

by PMD · capsule · 90 capsules

  • Off the market since June 2025 (NIH)
  • DSLD label 277246
  • Serving 3 capsules
  • 30 servings

Z-Test by PMD lists 16 ingredients, 4 with an amount per serving of 3 capsules, such as 5 mg of vitamin B6, 17 mg of magnesium and 15 mg of zinc; 12 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on December 13, 2022.

What is in Z-Test?

Each row as the label prints it, per serving of 3 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Z-Test: Supplement Facts rows against the market (DSLD label 277246, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxine Hydrochloride5 mg250%Vitamin B6 in Z-Test against 15,277 products5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg5 mg

51% of 15,277 products listing vitamin B6 give more (median 6 mg).

Magnesiumas Magnesium Aspartate17 mg4%Magnesium in Z-Test against 14,003 products17 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg17 mg

86% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc Amino Acid Chelate15 mg100%Zinc in Z-Test against 13,186 products15 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg15 mg

Higher than 56% of 13,186 products listing zinc (median 11 mg).

Trib-X Blend830 mg
Tribulus extractin the blend, no amount given
Oat straw stem & leaf extractin the blend, no amount given
Indole-3-Carbinolin the blend, no amount given
Diindolylmethanein the blend, no amount given
Chrysinas Oroxylum indicum Seed Extractin the blend, no amount given
Nocturnal Growth Blend487 mg
L-Dopaas Mucuna pruriens Seed Extract25%in the blend, no amount given
Gamma Amino Butyric Acidin the blend, no amount given
Melatonin3 mgMelatonin in Z-Test against 1,557 products3 mg per serving; the middle half of products list 2 mg to 5 mg, the median 3 mg.3 mg

38% of 1,557 products listing melatonin give more (median 3 mg).

Mental Relax-5 Blend500 mg
Passionflower Flower Extractin the blend, no amount given
Chamomile flower extractin the blend, no amount given
White Button Mushroomin the blend, no amount given
L-Theaninein the blend, no amount given
5-Hydroxytryptophanas Griffonia simplicifolia Seed Extractin the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 277246 (entered December 13, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 12 ingredients sit inside a blend, so their amounts cannot be compared.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Z-Test's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested uses: Z-TEST: 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.
Build-and-cut: 8-week program: Use FLEX Stack Hardcore for 4 weeks, followed by the original FLEX Stack (N-TEST 600 and Z-TEST) for 4 weeks. Advantage: Mass up and cut down to your ultimate hardcore physique. METHYL ANDRO releases the LaxoTest Complex facilitating healthy testosterone levels to support muscle growth. N-TEST 600 then allows for a natural release of free testosterone to support lean muscle definition. Cut-and-build: 8-week program: Use the original Flex Stack (N-TEST 600 and Z-TEST) for 4 weeks, followed by FLEX Stack HARDCORE for 4 weeks. Advantage: Shred down first and use N-TEST 600 to allow for a natural release of free testosterone that can be used to support lean muscle definition. Then pack on high quality lean muscle mass with METHYL ANDRO. This approach allows for a leaner, more refined muscular physique. Hardcore mass: 8-week program: Use FLEX Stack HARDCORE for 8 weeks. Advantage: Using FLEX Stack HARDCORE for 8 consecutive weeks facilitates serious mass building results. This aggressive fast-acting, hard-hitting testosterone stack option offers the edge to take your results to an unparalleled elite level.
Follow up your FLEX Stack HARDCORE with Z-TEST post-cycle to replenish and restore your system, and to achieve optimal results. Do not exceed recommended dose on any testosterone program!
Warnings
Warning: Keep out of reach of children. Not for use by those under the age of 18.
For use by healthy individuals only.
Do not use if you are pregnant, nursing, or have a serious medical condition.
Do not exceed recommended dose. Before consuming seek advice from health care professional if you were unaware of your current health 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.
Consult your physician prior to use if you have, or have a family history of, prostate cancer, prostate enlargement, heart, liver, kidney, or thyroid disease, difficulty urinating, diabetes, high or low blood pressure, or low “good” cholesterol (HDL). Exceeding recommended serving may cause serious adverse health effects. Possible side effects include acne, hair loss, hair growth on the face (in women), aggressiveness, irritability, and increased levels of estrogen. Discontinue use and call a physician or license qualified healthcare professional immediately if you experience rapid heartbeat, dizziness, blurred vision, or other symptoms. Discontinue use two weeks prior to surgery. Do not use in conjunction with alcoholic beverages, when driving a vehicle, or while operating machinery. Do not use if tamper resistant seals are 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.
Due to the unique restrictions of amateur and professional sports organizations (e.g., WADA, NCAA, NFL, MLB, NBA, UIL, etc.), It is recommended that you consult with the appropriate governing body before taking this or any other dietary supplement product.
Allergens and what it does not contain
Gluten free
Storage
Store in a cool, dry place. Avoid excessive heat.

Source: label statements in DSLD label 277246.

What else is on the label?

Other ingredients: Gelatin, Magnesium Stearate, Microcrystalline Cellulose, Titanium Dioxide, FD&C Blue 1, FD&C Red 3, FD&C Yellow 6.

How many labels does Z-Test have?

2 labels are on file under this name since June 16, 2022: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 277246 (current) Entered December 13, 2022 · off the market June 4, 2025 · 90 capsules
  2. Label 272393 Entered June 16, 2022 · off the market June 4, 2025 · 90 capsules

DSLD also links this label to: Methyl Andro (bundle set).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names PMD Sports (manufacturer). All PMD products.

Where next?