PlainVitamins

TestoJack 100

by NOW · capsule · 120 veg capsules

  • On the market (NIH)
  • UPC 7 33739 02138 0
  • DSLD label 315735
  • Serving 2 veg capsules
  • 60 servings

TestoJack 100 by NOW lists 5 ingredients, 5 with an amount per serving of 2 veg capsules, such as 3 mg of vitamin B6, 140 mg of magnesium, 9 mg of zinc and 250 mg of tribulus terrestris aerial parts, fruit extract. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2024.

What is in TestoJack 100?

Each row as the label prints it, per serving of 2 veg 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).

TestoJack 100: Supplement Facts rows against the market (DSLD label 315735, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxine Hydrochloride3 mg176%Vitamin B6 in TestoJack 100 against 15,277 products3 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg3 mg

64% of 15,277 products listing vitamin B6 give more (median 6 mg).

Magnesiumas Magnesium Aspartate, Magnesium Oxideelemental140 mg33%Magnesium in TestoJack 100 against 14,003 products140 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg140 mg

Higher than 69% of 14,003 products listing magnesium (median 86 mg).

Zincas Zinc Aspartate, Zinc Mono-L-Methionine, Zinc Oxideelemental9 mg82%Zinc in TestoJack 100 against 13,186 products9 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg9 mg

59% of 13,186 products listing zinc give more (median 11 mg).

Tribulus terrestris Aerial Parts, Fruit Extractas Tribulus terrestris Aerial Parts Extract, Tribulus terrestris Fruit Extractmin. 45% saponins250 mgTribulus in TestoJack 100 against 555 products250 mg per serving; the middle half of products list 100 mg to 750 mg, the median 300 mg.250 mg

51% of 555 products listing tribulus give more (median 300 mg).

Lj100as Eurycoma longifolia Root Extractmin. 22% eurypeptides50 mgEurycoma Longifolia in TestoJack 100 against 496 products50 mg per serving; the middle half of products list 75 mg to 212.47 mg, the median 100 mg.50 mg

77% of 496 products listing eurycoma longifolia give more (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 315735 (entered August 22, 2024), 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.

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?

1 product lists the very same ingredients; the nearest amounts come first.

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 Usage: Take 2 capsules daily with food as needed.
Warnings
Caution: For adults only.
This product is not intended for those with a serious medical condition or pregnant/nursing women. Consult your physician if taking any medication.
Keep out of reach of children.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Non-GMO
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 315735.

What else is on the label?

Other ingredients: Hypromellose, Microcrystalline Cellulose, Stearic Acid, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Triangle K (Kosher); Crescent H (Halal) GMP Quality Assured.

How many labels does TestoJack 100 have?

19 labels are on file under this name since December 23, 2011: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 315735 (current) Entered August 22, 2024 · on the market · 120 veg capsules · UPC 7 33739 02138 0
  2. Label 314134 Entered August 22, 2024 · on the market · 60 veg capsules · UPC 7 33739 02168 7
  3. Label 73584 Entered May 24, 2017 · off the market February 12, 2024 · 60 veg capsules · UPC 7 33739 02168 7
  4. Label 70916 Entered February 24, 2017 · off the market February 12, 2024 · 120 veg capsules · UPC 7 33739 02138 0
  5. Label 70068 Entered January 25, 2017 · off the market March 24, 2017 · 60 veg capsules · UPC 7 33739 02168 7
  6. Label 69637 Entered January 25, 2017 · off the market November 30, 2016 · 120 veg capsules · UPC 7 33739 02138 0
  7. Label 50275 Entered September 25, 2015 · off the market September 20, 2016 · 60 veg capsules · UPC 7 33739 02168 7
  8. Label 43039 Entered March 25, 2015 · off the market August 24, 2015 · 60 veg capsules · UPC 7 33739 02168 7
  9. Label 43038 Entered March 25, 2015 · off the market July 18, 2016 · 120 veg capsules · UPC 7 33739 02138 0
  10. Label 36415 Entered August 26, 2014 · off the market February 16, 2015 · 120 veg capsules · UPC 7 33739 02138 0
  11. Label 36015 Entered August 26, 2014 · off the market February 16, 2015 · 60 veg capsules · UPC 7 33739 02168 7
  12. Label 28460 Entered December 24, 2013 · off the market March 6, 2014 · 60 veg capsules · UPC 7 33739 02168 7
  13. Label 28458 Entered December 24, 2013 · off the market February 17, 2013 · 60 veg capsules · UPC 7 33739 02168 7
  14. Label 28452 Entered December 24, 2013 · off the market May 1, 2014 · 120 veg capsules · UPC 7 33739 02138 0
  15. Label 28449 Entered December 24, 2013 · off the market February 7, 2013 · 120 veg capsules · UPC 7 33739 02138 0
  16. Label 15803 Entered November 21, 2012 · off the market March 6, 2014 · 60 vcaps(R) · UPC 7 33739 02168 7
  17. Label 15798 Entered November 21, 2012 · off the market January 11, 2013 · 60 veg capsules · UPC 7 33739 02168 7
  18. Label 13377 Entered October 1, 2012 · off the market August 9, 2012 · 60 vcaps(R) · UPC 7 33739 02168 7
  19. Label 2854 Entered December 23, 2011 · off the market January 11, 2013 · 120 vcaps(R) · UPC 7 33739 02138 0

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

Who makes it?

The label names NOW FOODS (distributor), Bloomingdale, IL. All NOW products.

Where next?