Two testosterone-support formulas. Two very different approaches. Roman combines three key botanical extracts with supporting nutrients, while Testo XL relies more heavily on Tribulus and minerals.
THE SHORT VERSION
Roman is built around Tongkat Ali, Ashwagandha and Fenugreek, then adds zinc, vitamin D3, boron, taurine and vitamins K1 and K2. Testo XL has a simpler formula built around Tribulus, magnesium, zinc, boron and vitamin B6.
FORMULA VS FORMULA
The number on the front of the bottle tells you very little. What matters is which ingredients are used, their form, their dose and what human research says about them.
| Ingredient | Roman | Nutritech Testo XL |
|---|---|---|
| Tongkat Ali |
✓
400 mg
100:1 extract |
— |
| Ashwagandha |
✓
300 mg
10:1 root extract · 2.5% withanolides |
— |
| Fenugreek |
✓
500 mg
8:1 seed extract · 53% saponins |
— |
| Taurine | ✓ 675 mg | — |
| Tribulus terrestris | — |
500 mg*
40% saponins |
| Magnesium | — |
480 mg elemental*
from magnesium oxide |
| Zinc |
✓
15 mg elemental
zinc bisglycinate |
30 mg elemental*
zinc gluconate |
| Boron | ✓ 3 mg elemental |
5 mg elemental*
boron citrate |
| Vitamin D3 | ✓ 1,000 IU | — |
| Vitamin K1 + K2 | ✓ 120 µg total | — |
| Vitamin B6 | — | 10 mg* |
*A note on Testo XL's label: the supplied packaging states "Single Serving Size: 3 Capsules", while the ingredient column is headed "Per 5 Capsule Serving". The amounts above are shown exactly as printed beneath that heading. If those amounts are genuinely for five capsules, a three-capsule intake would contain 60% of the amounts shown.
HOW WE COMPARE THEM
We compare the core ingredients, the forms used and whether the doses line up with human research.
Has the ingredient actually been studied in men for testosterone, stress, sexual function or performance?
Two products can list the same ingredient while using different extracts, mineral forms or standardisations.
A good ingredient at a tiny dose is not automatically a good formula. Product doses need to be compared with human research.
WHAT THE HUMAN RESEARCH SAYS
Not every ingredient in a complete formula needs to raise testosterone on its own. Roman uses a testosterone-focused botanical core, then adds supporting nutrients for stress, recovery and normal hormone function.
A 2022 systematic review and meta-analysis found that Eurycoma longifolia supplementation was associated with higher total testosterone in men. Roman uses 400 mg of a 100:1 Tongkat Ali extract as the centre of its testosterone-focused formula.
Ashwagandha has human research relevant to testosterone, stress and cortisol. Roman includes 300 mg of a 10:1 root extract standardised to 2.5% withanolides, giving the formula support beyond testosterone alone.
Human trials and reviews suggest fenugreek extracts can support testosterone-related and sexual-health outcomes, although results vary between extracts. Roman includes 500 mg of an 8:1 seed extract standardised to 53% saponins.
Tribulus is Testo XL’s main botanical. A 2025 systematic review found no robust evidence that it reliably increases testosterone. Some studies do suggest possible sexual-function benefits.
Zinc is required for normal male reproductive and hormone function. Deficiency is linked with lower testosterone, and correcting a deficiency can restore levels. Roman provides 15 mg elemental zinc as zinc bisglycinate.
Vitamin D is important for normal muscle, immune and endocrine function. Testosterone results from supplementation are inconsistent, so Roman uses vitamin D3 as a foundational nutrient rather than relying on it as the main testosterone ingredient.
Magnesium is an essential mineral involved in muscle, nerve and energy function, and it is a genuine strength in Testo XL. Nutritech uses magnesium oxide, a form that is generally less bioavailable than several other common magnesium forms.
Roman provides 3 mg elemental boron as part of the wider formula. Human studies have explored boron in relation to free testosterone and SHBG, although the evidence is still limited. It works here as a supporting ingredient, not the centre of Roman’s formula.
BEYOND TESTOSTERONE
Roman combines testosterone-focused botanicals with ingredients that support stress, recovery and essential nutrient status. Nutritech still offers a simple formula with useful magnesium, zinc and vitamin B6 support.
Ashwagandha adds human evidence for stress and cortisol support alongside Roman’s testosterone-focused ingredients.
Taurine adds a performance and recovery component to the formula, rather than making Roman a one-purpose testosterone product.
Zinc, vitamin D3, boron and vitamins K1 and K2 support normal physiological functions that matter to men as they age.
Tongkat Ali and fenugreek have also been studied for male sexual-health and vitality outcomes beyond testosterone alone.
Testo XL provides magnesium and zinc, two essential minerals with broad roles in muscle, nerve and reproductive function.
Testo XL brings magnesium, zinc and vitamin B6 into a straightforward formula for men who want essential nutrient support.
ROMAN
Roman is built around three botanical extracts with human research relevant to testosterone and male performance: Tongkat Ali, Ashwagandha and Fenugreek.
Nutritech does two things well: it provides useful magnesium and zinc support, and it keeps the formula simple. But its main botanical is Tribulus, which has not reliably increased testosterone in human clinical research.
For men looking for the stronger testosterone-focused formula, Roman is the clear winner.
No head-to-head clinical trial has compared the finished products. The winner here is based on the disclosed formulas, ingredient forms, doses and published human research.
This comparison is based on the disclosed formulas and published human research on their ingredients. No head-to-head clinical trial has compared the two finished products.
