Z-Build
by Fitness One Formulas · capsule · 60 extra strength capsules
- Off the market since November 2019 (NIH)
- UPC 0 99461 00082 7
- DSLD label 42160
- Serving 1 to 2 capsules; amounts per 2 capsules
- 30 servings
Z-Build by Fitness One Formulas lists 13 ingredients, 4 with an amount per serving of 2 capsules, such as 3 mg of vitamin B6, 150 mg of magnesium, 10 mg of zinc and 2 mg of melatonin; 9 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on February 25, 2015.
What is in Z-Build?
Each row as the label prints it, per serving of 2 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine HCl) | 3 mg | 150% | 64% of 15,277 products listing vitamin B6 give more (median 6 mg). Per day at the most servings: 6 mg. |
| Magnesiumas Magnesium OxideMagnesium (Form: as Magnesium Oxide) | 150 mg | 250% | This amount is far outside what other labels list for magnesium, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD. |
| Zincas Zinc OxideZinc (Form: as Zinc Oxide) | 10 mg | 67% | 51% of 13,186 products listing zinc give more (median 11 mg). Per day at the most servings: 20 mg. |
| Z-BUILD Proprietary Andro-bolic(TM) Muscle Growth Matrix | 917 mg | ||
| Tribulus terrestrisas SaponinsTribulus terrestris (Form: supplying 45% Saponins) Genus: Tribulus Species: terrestris | in the blend, no amount given | ||
| Boron Citrateas BoronBoron Citrate (Form: supplying 5% Boron) | in the blend, no amount given | 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. | |
| Mucuna pruriens | in the blend, no amount given | ||
| Stinging Nettle extractStinging Nettle extract Note: 4:1 | in the blend, no amount given | ||
| Fenugreek | in the blend, no amount given | ||
| DIM | in the blend, no amount given | ||
| Ashwagandha | in the blend, no amount given | ||
| L-Theanine | in the blend, no amount given | ||
| Valerian extract | in the blend, no amount given | ||
| Melatonin | 2 mg | 70% of 1,557 products listing melatonin give more (median 3 mg). Per day at the most servings: 4 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 42160 (entered February 25, 2015), 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; 9 ingredients sit inside a blend, so their amounts cannot be compared.
The NIH database records 1 to 2 servings 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 Z-Build's, rare ingredients counting for more.
- Boom StickRedcon1 7 shared, 45% alike
- MAXX Monster Test Be Invincible Testosterone BoosterMonster Test 8 shared, 38% alike
- P6 ExtremeCellucor 7 shared, 37% alike
- ZmtSwolverine 8 shared, 37% alike
- MAXX Monster Test Testosterone BoosterMonster Test · off the market 8 shared, 37% alike
- PM Monster Test Sleep & Grow Testosterone BoosterMonster Test 7 shared, 36% alike
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
- Use as part of our 24 Hr Andro-Bolic(TM) Muscle Stack for unparalleled growth support 24/7!
- Directions: For deep productive sleep and all night androgenic muscle support, adults take (1) or (2) capsules approximately 30 minutes prior to bedtime.
- For best results use for 60 days in combination with muscle building exercise program.
- Warnings
- KEEP OUT OF REACH OF CHILDREN
- Do not exceed 3 capsules in a 24-hour period.
- WARNING: Not intended for use by persons under 18.
- Do not drive or operate machinery or other important tasks when taking this product.
- Do not use if pregnant or nursing, or in conjunction with alcoholic beverages.
- Discontinue use and consult a medical doctor if you experience unusual symptoms.
- Consult a medical doctor before use if you have been treated for, or diagnosed with, or have a family history of any medical condition, or if you are using any prescription or over-the-counter drug(s).
- Do not exceed recommended serving. Use only as directed. Do not use if packaging has been tampered with.
Source: label statements in DSLD label 42160.
What else is on the label?
Other ingredients: Gelatin, Microcrystalline Cellulose, Magnesium Stearate, Titanium Dioxide.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP CERTIFIED; 24 HOUR Andro-bolic(TM) Muscle Stack.
How many labels does Z-Build have?
One label is on file, entered on February 25, 2015.
- Label 42160 (current) Entered February 25, 2015 · off the market November 20, 2019 · 60 extra strength capsules · UPC 0 99461 00082 7
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Fitness One Formulas LLC (distributor), Miami, FL. All Fitness One Formulas products.