NOW Foods TestoJack 100 120 Veg Capsules

What this is

NOW Foods TestoJack 100 is a botanical dietary supplement sold in a bottle of 120 vegetarian capsules. The panel sets the serving at 2 capsules and counts 60 servings in the bottle, so the arithmetic closes exactly: 60 × 2 = 120. It sits in NOW's Botanicals/Herbs range rather than its single-nutrient vitamin range, and the formula reflects that — two plant extracts carried alongside three minerals and vitamins that do have an established Daily Value.

Two details printed on the bottle are worth knowing before you buy: the front marks the capsules Vegetarian/Vegan and Non-GMO, and the side panel notes that the bottle itself is made from 100% PCR (post-consumer recycled) resin. You can browse the rest of our Health & Wellness range for other capsule-format botanicals.

What is in each serving

Two capsules deliver five listed items — three with a % Daily Value and two without. Here is what each one actually is.

• LJ100® (Eurycoma longifolia Extract) (Root), 50 mg. Eurycoma longifolia is a slender understory tree native to the rainforests of Malaysia, Indonesia and Vietnam, known regionally as tongkat ali and sometimes as longjack. The root is the part harvested for extraction. LJ100® is a branded, standardized extract and a registered trademark of HP Ingredients; the panel specifies it at a minimum of 22% eurypeptides.
• Tribulus Extract Blend, 250 mg. The bracketed detail on the panel reads Tribulus Extract (Tribulus terrestris) (Fruit/Aerial Parts), Maltodextrin. Tribulus terrestris is a low, sprawling plant in the caltrop family that grows across warm, dry regions worldwide, known in some places as puncture vine. The panel is specific that the fruit and aerial parts are used, not the root. Maltodextrin is a starch-derived carrier that keeps an extract free-flowing, and the panel names it inside the blend bracket.
• Zinc (elemental), 9 mg — 82% DV. Zinc here comes from three forms at once: zinc mono-L-methionine (zinc paired with the amino acid methionine), zinc aspartate and zinc oxide. “Elemental” matters: the 9 mg is the weight of the zinc itself, not of the compounds carrying it, which always weigh more. The NIH fact sheet on zinc gives general background on the mineral and on food sources such as oysters, beef and beans.
• Magnesium (elemental), 140 mg — 33% DV. Two forms are listed, magnesium aspartate and magnesium oxide, again totalled as elemental weight. Magnesium occurs in ordinary food — pumpkin seeds, spinach, black beans — and the NIH fact sheet on magnesium covers the background.
• Vitamin B-6 (from Pyridoxine HCl), 3 mg — 176% DV. That figure is above 100%, which the panel states plainly; pyridoxine hydrochloride is the common synthetic form of the vitamin. Background on B-6 and the foods it occurs in is in the NIH fact sheet on vitamin B6.

One precision point about the mineral trio. The bottle credits ZMA®, a registered trademark of SNAC System, Inc. of San Carlos, California, which covers that particular zinc-magnesium-B-6 combination. ZMA® is not a separate line on the panel and has no amount of its own — the three minerals and vitamins are itemized individually with their own figures, and the trademark describes the grouping.

The tribulus blend and the LJ100® extract both carry a dagger rather than a percentage, and the panel explains why: Daily Value not established. That is a regulatory statement about the ingredient, not a comment on the amount — no reference intake has been set for either botanical. The NIH overview of botanical dietary supplements explains how plant ingredients are handled differently from vitamins and minerals.

Outside the facts panel the label lists four other ingredients: hypromellose (the cellulose capsule shell), microcrystalline cellulose, stearic acid from a vegetable source, and silicon dioxide. The panel assigns no role to any of them, so neither do we.

Supplement Facts

† Daily Value not established. Transcribed from the Supplement Facts panel on the bottle.

How to use it

The label's Suggested Usage is: take 2 capsules daily with food as needed. That single sentence is the whole of the printed instruction, so it is the whole of what we pass on — where a label is brief, we leave it brief rather than filling the gap.

At that rate a bottle of 120 works out to a 60-day supply, roughly six bottles a year taken continuously. Storage is equally brief: store in a cool, dry place after opening. The panel also notes that natural color variation may occur in this product, so capsules from two bottles will not necessarily look identical.

Who it is for

This is a dietary supplement for adults 18 and over, and the bottle addresses adult men specifically. It will suit someone who prefers a standardized botanical extract with the marker content printed on the label, and who wants each mineral amount and its source compounds itemized separately on the panel.

The capsule shell is hypromellose, a plant-derived cellulose, and the front of the bottle carries the Vegetarian/Vegan mark — relevant if gelatin capsules are a problem for you. The capsule format also makes it an easy addition to a sports nutrition shelf that already contains powders. One thing worth checking first: 9 mg of zinc and 140 mg of magnesium are substantial amounts, so if you already take a multivitamin or a separate mineral supplement, add up the totals before adding this on top.

Good to know

The bottle's own caution reads: 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.

The allergen statement printed on the panel is: not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients, and produced in a GMP facility that processes other ingredients containing these allergens. That second clause is the part people miss: shared equipment is disclosed, so a severe allergy is a conversation for your doctor.

The bottle carries a kosher mark and a GMP Quality Assured seal. It is manufactured for NOW Foods of 395 S. Glen Ellyn Rd., Bloomingdale, Illinois, a family-owned company since 1968, and the panel states it is made and quality tested in the USA with globally sourced ingredients — a more precise statement than a flat “made in the USA”, and worth reading as written.

Frequently Asked Questions

How many capsules are in the bottle, and how long does one bottle go?

There are 120 vegetarian capsules, which the panel counts as 60 servings of 2. At the label's rate of 2 daily that is a 60-day supply.

Is this suitable for vegetarians and vegans?

Yes — the front of the bottle is marked Vegetarian/Vegan, and the capsule shell is hypromellose, a cellulose material rather than gelatin.

What does “min. 22% eurypeptides” on the LJ100 line mean?

It is the standardization figure for the extract: each batch is produced to contain at least 22% of that named group of compounds by weight. Standardized extracts are measured this way so that the marker content is consistent between batches rather than varying with the raw root.

Does the bottle contain any of the major allergens?

The panel states it is not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients, while also disclosing shared equipment, so cross-contact is not ruled out.

How is this order packaged for delivery?

Your order ships in plain, unmarked outer packaging with no description of the contents on the outside. It will not show the Gear Isle name.

Product information compiled and reviewed by the Gear Isle product team. We transcribe supplement facts directly from manufacturer packaging. Found an error? Tell us.

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. Dietary supplement for adults 18 and over. Consult a licensed healthcare professional before use, especially if you have a medical condition, heart concerns, or take prescription medication (including nitrates). Keep out of reach of children.