PlainVitamins

Test HD Black Onyx

by MuscleTech · other (e.g. tea bag) · 120 caplets

  • On the market (NIH)
  • UPC 6 31656 60942 4
  • DSLD label 255868
  • Serving 4 caplets
  • 30 servings

Test HD Black Onyx by MuscleTech lists 13 ingredients, 13 with an amount per serving of 4 caplets, such as 2 mg of vitamin B6, 200 mcg of folic acid, 1 mcg of vitamin B12 and 30 mg of zinc. Its current label entered the NIH Dietary Supplement Label Database on October 22, 2021.

What is in Test HD Black Onyx?

Each row as the label prints it, per serving of 4 caplets. 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).

Test HD Black Onyx: Supplement Facts rows against the market (DSLD label 255868, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine Hydrochloride)2 mg100%Vitamin B6 in Test HD Black Onyx against 15,277 products2 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2 mg

69% of 15,277 products listing vitamin B6 give more (median 6 mg).

Folic Acid200 mcg50%Folate in Test HD Black Onyx against 7,022 products200 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.200 mcg

71% of 7,022 products listing folate give more (median 400 mcg).

Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin)1 mcg17%Vitamin B12 in Test HD Black Onyx against 14,425 products1 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg1 mcg

98% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Zincas Zinc GluconateZinc (Form: as Zinc Gluconate)30 mg200%Zinc in Test HD Black Onyx against 13,186 products30 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg30 mg

Higher than 90% of 13,186 products listing zinc (median 11 mg).

Test Extreme Matrixno amount given
D-Aspartic Acid3 gD-Aspartic Acid in Test HD Black Onyx against 134 products3 g per serving; the middle half of products list 1 g to 3 g, the median 2.3 g.3 g

Higher than 56% of 134 products listing D-aspartic acid (median 2.3 g).

Boron CitrateBoron Citrate Note: supplying200 mg

The label names the compound (Boron Citrate); its amount is likely the compound's weight, not the boron it holds, so it is not placed among other products.

Boron10 mg
PrimaVie Shilajit extractas Fulvic Acid200 mgShilajit in Test HD Black Onyx against 196 products200 mg per serving; the middle half of products list 100 mg to 500 mg, the median 250 mg.200 mg

52% of 196 products listing shilajit give more (median 250 mg).

Sensoril Ashwagandha extractas Withanolides125 mgAshwagandha in Test HD Black Onyx against 1,646 products125 mg per serving; the middle half of products list 125 mg to 500 mg, the median 250 mg.125 mg

66% of 1,646 products listing ashwagandha give more (median 250 mg).

Longjack extract100 mgEurycoma Longifolia in Test HD Black Onyx against 496 products100 mg per serving; the middle half of products list 75 mg to 212.47 mg, the median 100 mg.100 mg

44% of 496 products listing eurycoma longifolia give more (median 100 mg).

Asian Ginseng extractas Ginsenosides100 mgOriental Ginseng in Test HD Black Onyx against 706 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 90 mg.100 mg

Higher than 51% of 706 products listing oriental ginseng (median 90 mg).

Stinging Nettle extract100 mgStinging Nettle in Test HD Black Onyx against 710 products100 mg per serving; the middle half of products list 50 mg to 300 mg, the median 120 mg.100 mg

51% of 710 products listing stinging nettle give more (median 120 mg).

Safed Musli extractas Saponins75 mgSafed musli in Test HD Black Onyx against 51 products75 mg per serving; the middle half of products list 100 mg to 500 mg, the median 250 mg.75 mg

76% of 51 products listing safed musli give more (median 250 mg).

Source: NIH ODS Dietary Supplement Label Database, label 255868 (entered October 22, 2021), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 98% of the 14,425 products that print an amount of vitamin B12 list more than its 1 mcg of vitamin B12 (median 36 mcg).

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 Test HD Black Onyx'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
Directions: Take 1 serving (4 caplets) once daily with water. Do not exceed 1 serving (4 caplets) in a 24-hour period. Read the entire label before use and follow directions provided.
Warnings
Warning: Not intended for use by persons under 18.
Do not use if pregnant or nursing.
Discontinue use 2 weeks prior to surgery. Consult a medical doctor before starting any diet or exercise program or if you have a medical condition. This product should not be consumed for more than 4 consecutive weeks with a 2 to 4 week washout period between cycles.
Keep out of reach of children.
Do not use if packaging has been tampered with.
Not intended to treat low testosterone or sexual dysfunction.
Allergens and what it does not contain
It’s built with scientifically validated ingredients shown to reduce cortisol and boost free testosterone. Boost free testosterone in 7 Days
Storage
Store in a cool, dry place (60 degrees F to 80 degrees F).

Source: label statements in DSLD label 255868.

What else is on the label?

Other ingredients: Coating, Microcrystalline Cellulose, Dicalcium Phosphate Dihydrate, Croscarmellose Sodium, Stearic Acid, Silicon Dioxide, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in the U.S.A. from international ingredients.

How many labels does Test HD Black Onyx have?

One label is on file, entered on October 22, 2021.

  1. Label 255868 (current) Entered October 22, 2021 · on the market · 120 caplets · UPC 6 31656 60942 4

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

Who makes it?

The label names Iovate Health Sciences U.S.A. Inc. (distributor), Wilmington, DE. All MuscleTech products.

Where next?