BRUTAL FORCE / FORMULA & TRAINING
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TestoFuel speaks directly to gym-goers, making it tempting to judge it as a muscle builder before reading the formula. We put Testogen Ultimate first for broad testosterone support. For a dedicated muscle-oriented alternative, DBULK is the Brutal Force product to assess alongside that decision.
Overall formula pick
Testogen Ultimate
Testogen wins our overall formulation choice. DBULK is our muscle-building alternative, while TestoFuel remains a specific maca-and-oyster option rather than the automatic winner for anyone who lifts.
Explore TestogenThe formula comparison
Version: published 10-ingredient TestoFuel formula. Serving basis: 4 capsules.
Amounts refer to the stated serving for each product, not one capsule. Extract weights, raw-herb equivalents and elemental mineral amounts are different measurements.
Swipe the table to see every product column.
| Ingredient | Testogen Ultimate 4 capsules |
TestoFuel 4 capsules |
|---|---|---|
| D-aspartic acid | 2,025 mg | 2,000 mg |
| Ashwagandha | 200 mg; KSM-66 root extract | Not included |
| Fenugreek | 100 mg; seed extract, at least 50% saponins | 50 mg; seed extract, equivalent to 800 mg seed powder |
| Panax ginseng | 100 mg; extract, 5% ginsenosides | 100 mg; Asian red Panax ginseng extract |
| Nettle | 80 mg; root extract, 10:1 | Not included |
| Black pepper extract | 7 mg; BioPerine, 95% piperine | Not included |
| Vitamin D3 | 100 mcg (4,000 IU); cholecalciferol | 100 mcg (4,000 IU); cholecalciferol |
| Vitamin K2 | 90 mcg; menaquinone-7 (MK-7) | Included; amount and specific K2 form not verified because the online table has inconsistent units |
| Vitamin B6 | 8 mg; pyridoxal-5-phosphate (P5P) | Not included |
| Magnesium | 80 mg; bisglycinate and citrate | Included as magnesium aspartate; amount not verified because the online table has inconsistent units |
| Zinc | 25 mg; monomethionine | 10 mg; monomethionine and aspartate |
| Copper | 0.5 mg; bisglycinate | Not included |
| Boron | 5 mg; bisglycinate | 8 mg; chelate, specific chelate not identified |
| Maca | Not included | 180 mg; root extract, equivalent to 1,800 mg root powder |
| Oyster | Not included | 100 mg; extract |
“Not included” indicates confirmed absence from the assessed formula. “Not verified” identifies a gap in the information available for this comparison; it does not mean the manufacturer hides the amount.
Testogen Ultimate: 13 active ingredients. Mineral figures are nutrient amounts, not the weight of the full mineral compound.
TestoFuel: All 10 active ingredients are shown. The manufacturer’s online magnesium and K2 entries contain conflicting units; both ingredients are present, but those two quantities require a bottle-panel check.
Capsule and other ingredients
Testogen Ultimate: Vegetable-cellulose capsule and NuFLOW rice-hull ingredient.
TestoFuel: Vegetable-cellulose capsule. Contains oyster.
Training appeal is not the same as training evidence
The 2,000 mg D-aspartic acid entry is prominent in TestoFuel. It is close to Testogen's 2,025 mg, and neither amount lets us promise a bigger bench press or faster muscle gain. Studies in trained men have not established a reliable performance benefit simply from adding D-aspartic acid. 1
Maca and oyster extract distinguish TestoFuel more clearly. They are preferences to evaluate, rather than a reason to assume a sports-oriented formula must outperform a broader one. Oyster also needs to be checked before purchase by anyone avoiding shellfish.
What we would change in the daily-support formula
Testogen adds 200 mg KSM-66, nettle root, B6 and copper to the comparison. Its named zinc and boron forms also make the mineral selection easy to inspect. That is a coherent reason for our recommendation without claiming TestoFuel lacks every premium detail.
Both Testogen and TestoFuel provide 100 mcg of vitamin D3. TestoFuel also includes magnesium aspartate and vitamin K2, but its online units conflict. Both ingredients remain in the comparison, with their quantities marked unverified.
The DBULK option for a muscle-building goal
For the reader whose real question is what to take around a muscle-building programme, DBULK offers a different ingredient combination including L-leucine and ashwagandha. It is not a replacement for adequate food or progressive training, and its position here is based on intended use rather than a head-to-head muscle-gain trial.
- Muscle-oriented formula with L-leucine, ashwagandha and MSM.
- Also described with puncture vine, sodium hyaluronate, suma and vitamin D3.
- Three capsules daily on the product page; follow the directions on the supplied bottle.
Inside our overall pick: Testogen Ultimate
- Formula coverage
- 13 actives, all amounts disclosed; four-capsule daily serving
- Botanical specification
- KSM-66 root extract 200 mg; Panax ginseng 100 mg at 5% ginsenosides; nettle root 80 mg at 10:1
- Further active amounts
- D-aspartic acid 2,025 mg; fenugreek extract 100 mg; BioPerine 7 mg
- Mineral detail
- Zinc monomethionine 25 mg; magnesium 80 mg as bisglycinate and citrate; boron bisglycinate 5 mg; copper bisglycinate 0.5 mg
- Vitamins
- D3 100 mcg; K2 90 mcg as MK-7; B6 8 mg as P5P
- Clean-label design and heritage
- Vegetable cellulose and NuFLOW; brand developed since 2014, now in its fourth generation
Ingredient breadth, disclosed quantities and named forms explain the selection. They are not measurements of testosterone change, strength or muscle gained from this finished formula.
Explore the full Testogen formulaChoose by the goal behind the search
Testogen Ultimate
Broad formula, named premium forms and fully stated active amounts.
Compare Testogen optionsBrutal Force DBULK
A training-oriented ingredient mix to assess for a specific muscle-building goal.
See the DBULK formulaTesTotal
A more economical route when a smaller testosterone-support formula fits.
Check TesTotal optionsSuitability alongside your existing routine
Review overlapping vitamins, minerals and herbs before adding a product to an existing training stack. Testogen contains 4,000 IU (100 mcg) D3, so its dose needs to be considered with other sources. A preferred formula is not automatically suitable for every user. 2
Unwanted reactions warrant stopping the product and obtaining appropriate advice. Ongoing symptoms need proper assessment; this comparison cannot diagnose testosterone deficiency or replace treatment. 3