Isa-Test GF

by iSatori · capsule · 120 bio-diffusion capsules

  • On the market (NIH)
  • UPC 8 83488 00507 7
  • DSLD label 217093
  • Serving 4 capsules
  • 30 servings

Isa-Test GF by iSatori lists 16 ingredients, 4 with an amount per serving of 4 capsules, such as 25 mg of vitamin C, 7 mg of vitamin B6, 300 mg of magnesium and 20 mg of zinc; 12 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on May 22, 2020.

What is in Isa-Test GF?

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

Isa-Test GF: Supplement Facts rows against the market (DSLD label 217093, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid25 mg28%Vitamin C in Isa-Test GF against 18,583 products25 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg25 mg

88% of 18,583 products listing vitamin C give more (median 100 mg).

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine HCl)7 mg412%Vitamin B6 in Isa-Test GF against 15,277 products7 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg7 mg

Higher than 52% of 15,277 products listing vitamin B6 (median 6 mg).

Magnesiumas Magnesium Aspartate, Magnesium OxideMagnesium (Form: as Magnesium Oxide, & Magnesium Aspartate)300 mg71%Magnesium in Isa-Test GF against 14,003 products300 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg300 mg

Higher than 87% of 14,003 products listing magnesium (median 86 mg).

Zincas Zinc AspartateZinc (Form: as Zinc Aspartate)20 mg182%Zinc in Isa-Test GF against 13,186 products20 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg20 mg

Higher than 79% of 13,186 products listing zinc (median 11 mg).

ISA-Test GFISA-Test GF Note: a proprietary blend containing1,714 mg
Tribulus extractas Protodioscin, total SaponinsTribulus extract (Form: 60% total Saponins, 20% Protodioscin) PlantPart: fruit Genus: Tribulus Species: terrestris Classifier: L.in the blend, no amount given
Epimedium extractas IcariinEpimedium extract (Form: standardized for 10% Icariin) PlantPart: leaf Genus: Epimedium Species: sagittatum, brevicornumin the blend, no amount given
EI-450 Estrogen Inhibitor Citris Bioflavanoid Complexas Citrus sinensis, HesperidinEI-450 Estrogen Inhibitor Citris Bioflavanoid Complex (Form: Citrus sinensis PlantPart: peel and fruit Genus: Citrus Species: sinensis, 50% Hesperidin)in the blend, no amount given
Tongkat ali extractTongkat ali extract PlantPart: root Genus: Eurycoma Species: longifolia Note: 20:1in the blend, no amount given
Ajuga turkestanica extractAjuga turkestanica extract PlantPart: stem and leaf Genus: Ajuga Species: turkestanica Note: 10:1in the blend, no amount given
Grapeseed extractas ProanthocyanidinsGrapeseed extract (Form: standardized for 95% Proanthocyanidins) PlantPart: seed Genus: Vitis Species: vinifera Classifier: L.in the blend, no amount given
Fenugreek extractas SaponinsFenugreek extract (Form: standardized for 50% Saponins) PlantPart: seed Genus: Trigonella Species: foenum-graecum Classifier: L.in the blend, no amount given
Rhaponticum carthamoides extractas EcdysteronesRhaponticum carthamoides extract (Form: standardized for 5% Ecdysterones) PlantPart: root Genus: Rhaponticum Species: carthamoidesin the blend, no amount given
SomatrinSomatrin Note: a proprietary blend containing325 mg
Velvet bean extractas L-DopaVelvet bean extract (Form: standardized for 20% L-Dopa) PlantPart: seed Genus: Mucuna Species: pruriensin the blend, no amount given
Nettle extractNettle extract PlantPart: root Genus: Urtica Species: dioica Note: 30:1in the blend, no amount given
Melatoninin the blend, no amount given
IsaflowIsaflow Note: a proprietary blend containing100 mg
Butchers Broom extractas Sterolic HeterosidesButchers Broom extract (Form: standardized for 20% Sterolic Heterosides) PlantPart: root Genus: Ruscus Species: aculeatusin the blend, no amount given
Hesperidin Methyl Chalconeas Citrus sinensis, HesperidinHesperidin Methyl Chalcone (Form: Citrus sinensis PlantPart: fruit Genus: Citrus Species: sinensis, 90% Hesperidin)in the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 217093 (entered May 22, 2020), 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?

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 Isa-Test GF'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 For Use: As a dietary supplement, men take 4 capsules with a full glass of water one hour prior to training. On non-training days, take 4 capsules one hour prior to bedtime. Take with or without food. For best results, use continuously for a minimum of 8 weeks. Isa-Test GF can be used on its own or in combination with other iSatori supplements.
Warnings
Warning: Keep out of reach of children.
Women should not use this supplement.
Not intended for individuals under the age of 18, unless instructed by a doctor.
Use only as directed. Do not exceed suggested daily dose.
If you are taking medications or have a medical condition, consult a physician before using this product.
Discontinue use 2 weeks prior to surgery. If you or your doctor have any questions about this product, please call 1-866-668-7679. Do not use if packaging has been tampered with.
California residents - Warning: Cancer and reproductive harm - www.P65Warnings.ca.gov/Food
Storage
Store in a cool dry place. Avoid excessive heat.

Source: label statements in DSLD label 217093.

What else is on the label?

Other ingredients: Gelatin, Magnesium Stearate, Silicon Dioxide, Microcrystalline Cellulose, FD&C Red #40, Candurin Silver, FD&C Red #3, FD&C Blue #1.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in the USA.

How many labels does Isa-Test GF have?

2 labels are on file under this name since April 22, 2016: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 217093 (current) Entered May 22, 2020 · on the market · 120 bio-diffusion capsules · UPC 8 83488 00507 7
  2. Label 58299 Entered April 22, 2016 · on the market · 104 capsules · UPC 8 83488 00164 2

DSLD also links this label to: Isa-Test GF Testosterone Stimulator (package size difference, same product), Isa-Test (package size difference, same product).

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

Who makes it?

The label names iSatori A Division of FitLife Brands (manufacturer, distributor), Omaha, NE. All iSatori products.

Where next?