PlainVitamins

Testrogain RX-100

by NewtonEverett · capsule · 90 vegetarian capsules

  • On the market (NIH)
  • UPC 8 18423 02787 6
  • DSLD label 292199
  • Serving 3 vegetarian capsules
  • 30 servings

Testrogain RX-100 by NewtonEverett lists 16 ingredients, 12 with an amount per serving of 3 vegetarian capsules, such as 1.6 mg of vitamin B6, 68 mg of magnesium, 4 mg of zinc and 500 mg of L-glutamine; 4 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on June 22, 2023.

What is in Testrogain RX-100?

Each row as the label prints it, per serving of 3 vegetarian 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).

Testrogain RX-100: Supplement Facts rows against the market (DSLD label 292199, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxine Hydrochloride1.6 mg94%Vitamin B6 in Testrogain RX-100 against 15,277 products1.6 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg1.6 mg

85% of 15,277 products listing vitamin B6 give more (median 6 mg).

Magnesiumas Magnesium Aspartate68 mg16%Magnesium in Testrogain RX-100 against 14,003 products68 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg68 mg

55% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc Aspartate, Zinc Mono-L-Methionine Sulfate4 mg36%Zinc in Testrogain RX-100 against 13,186 products4 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg4 mg

81% of 13,186 products listing zinc give more (median 11 mg).

L-Glutamine500 mgGlutamine in Testrogain RX-100 against 1,850 products0.5 g per serving; the middle half of products list 0.356 g to 3 g, the median 1 g.0.5 g

63% of 1,850 products listing glutamine give more (median 1 g).

Tongkat Ali root extract500 mgEurycoma Longifolia in Testrogain RX-100 against 496 products500 mg per serving; the middle half of products list 75 mg to 212.47 mg, the median 100 mg.500 mg

Higher than 90% of 496 products listing eurycoma longifolia (median 100 mg).

ZMA Blend400 mg
Zinc Mono-L-Methionine Sulfatein the blend, no amount given
Zinc Aspartatein the blend, no amount given
Magnesium Aspartatein the blend, no amount given
Pyridoxine Hydrochloridein the blend, no amount given
Plant Sterols250 mgPhytosterols in Testrogain RX-100 against 440 products250 mg per serving; the middle half of products list 100 mg to 667 mg, the median 400 mg.250 mg

62% of 440 products listing phytosterols give more (median 400 mg).

Beta Sitosterol100 mgBeta Sitosterol in Testrogain RX-100 against 264 products100 mg per serving; the middle half of products list 50 mg to 221.25 mg, the median 100 mg.100 mg

48% of 264 products listing beta sitosterol give more (median 100 mg).

Soy Isoflavone Concentrate200 mgIsoflavones in Testrogain RX-100 against 290 products200 mg per serving; the middle half of products list 25 mg to 80 mg, the median 50 mg.200 mg

Higher than 91% of 290 products listing isoflavones (median 50 mg).

Isoflavones80 mg
Tribulus Fruit Extract150 mgTribulus in Testrogain RX-100 against 555 products150 mg per serving; the middle half of products list 100 mg to 750 mg, the median 300 mg.150 mg

67% of 555 products listing tribulus give more (median 300 mg).

Saponins67 mgSaponins (unspecified) in Testrogain RX-100 against 42 products67 mg per serving; the middle half of products list 46.75 mg to 354.38 mg, the median 181.52 mg.67 mg

71% of 42 products listing saponins (unspecified) give more (median 181.52 mg).

Saw Palmetto berry extract120 mgSaw Palmetto in Testrogain RX-100 against 1,109 products120 mg per serving; the middle half of products list 100 mg to 320 mg, the median 200 mg.120 mg

68% of 1,109 products listing saw palmetto give more (median 200 mg).

Fatty Acids54 mg

Source: NIH ODS Dietary Supplement Label Database, label 292199 (entered June 22, 2023), 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?

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:

  • Its 200 mg of soy isoflavone concentrate (filed by NIH under isoflavones) is higher than 91% of the 290 isoflavones products that print an amount; 20 list more.

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 Testrogain RX-100'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 use: As a dietary supplement, take 3 capsules on an empty stomach 30 to 60 minutes before bedtime. As calcium may interfere with the absorption of zinc and magnesium, it is suggested that ZMA not be taken with calcium-containing foods or supplements.
Warnings
Contains: Soy.
Warnings: This product is not intended for use by those with serious medical conditions. Not for use by women or children.
Not for use by women or children.
Do not use this product if you have prostate cancer or prostate problems. Persons suffering from or at risk for any disease should consult a health care professional before using this product.
Keep out of reach of children.
Allergens and what it does not contain
Gluten free

Source: label statements in DSLD label 292199.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Magnesium Stearate, Microcrystalline Cellulose, Silicon Dioxide.

How many labels does Testrogain RX-100 have?

5 labels are on file under this name since June 25, 2014: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 292199 (current) Entered June 22, 2023 · on the market · 90 vegetarian capsules · UPC 8 18423 02787 6
  2. Label 82738 Entered January 25, 2018 · off the market May 18, 2022 · 90 vegetarian capsules · UPC 8 18423 02787 6
  3. Label 66539 Entered November 21, 2016 · off the market July 19, 2024 · 90 vegetarian capsules · UPC 6 89076 07910 5
  4. Label 35306 Entered July 25, 2014 · on the market · 120 capsules · UPC 6 89076 02795 3
  5. Label 34680 Entered June 25, 2014 · off the market July 19, 2024 · 120 capsules · UPC 6 89076 02795 3

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

Who makes it?

The label names Newton-Everett Nutraceuticals (distributor), Scottsdale, AZ. All NewtonEverett products.

Where next?