Mars Men Review - Research And Test Results

Written by: Stuart Roberts. Last updated: June 8th 2026
Normalised testosterone levels – measuring in at somewhere in the region of 12-35 nmol/L – are essential for male health. They will mean improved metabolic health, improved body composition, higher energy levels, sexual health, and psychological wellbeing [1-4]. In an athletic context, low testosterone will also mean slower recovery, reduced power output, muscle loss, persistent fatigue, and stubborn body fat [1,2,5].
Unfortunately, it’s common enough to see testosterone levels decline with age – broadly speaking, year on year after the age of about 30. It’s often accelerated by (and in turn will accelerate) poor sleep, chronic stress, inactivity, obesity, and inadequate micronutrient intake [1-4,6,7].
Don’t despair, though. There is a lot you can do to halt this decline and bolster your natural testosterone output. Lifestyle interventions like resistance training, sufficient sleep, adequate dietary protein and fats, and stress management can go a long way towards naturally amplifying your natural testosterone output. Well-formulated natural testosterone boosters can also help to support hormonal health, especially at the margins [23,24].
This is where we come to Mars Men, a natural testosterone booster that claims to work wonders. It advertises its high-dose herbal extracts, solid mineral support, and full clinical backing for its formula. However, while this all looks decent at first glance, a closer look muddies the water a bit. The illusion of competence the manufacturers try to paint falters when you see the note the number of poor online reviews from dissatisfied customers, reporting weak results and inconsistent effects; it fades, too, when you ignore the hype and actually look into the science backing up Mars Men’s formula [23,25].
A question looms, then. Does Mars Men actually deliver meaningful testosterone support, and how does it compare to market leading supplements like Testogen?
Published by Brand Partners. Testogen is owned by the same people, so this is our own comparison, rather than an independent review. We believe it's one of the best options available, which is why we recommend it below.
How we rate product formulas. Our formula rating looks only at the formulation: how each active is dosed compared with the amounts used in published human studies, the form it comes in, whether its actives have published human research, how openly the label discloses what's inside, and how clean the formula is of unnecessary fillers. It does not score price or how well a product works for any individual. Data is taken from the product's current label and the available scientific research. A higher score means a formula that is more fully dosed, in better-studied forms, and more transparently labeled, not a promise of any result.
Mild libido boost, some support
Supports increases in T-levels. Notable increase in energy, increased drive, libido, supports muscle growth.
Overall limited, but good for some ingredients/dosages
Simple, some key ingredients not present
High, scientifically proven approach
Brand Reputation Concerns
Some concerns over marketing claims and practices
None, praised for efficacy
Commitment Time For Results
Weeks, consistent use recommended for best results
Mixed, high volume of negative reviews
Predominantly positive reviews
Simple, some ingredients underdosed, some ingredients omitted
Clear information on dosages (transparent label information)
Potential Side Effects
Low risk due to overall low dosages
None, well-tolerated
Customer Support & Returns Policy
Standard return options available
Excellent, with 60 day money-back guarantee
Product Availability
Available through the official site only
Clean ingredient profile
Servings Per Container
At first glance, Mars Men looks like any other high-end, potent testosterone booster – aimed at men looking to boost their natural testosterone output, bolster their libido a little, support fertility, and enhance muscle growth, among other benefits. Its branding leans heavily into this. They are, if nothing else, a pretty shouty bunch, the people who make Mars Men. They make sure to underline the high doses on offer (a fair point) whilst also making some pretty bold claims, especially around the likes of Tongkat Ali, shilajit, and fenugreek (far more questionable). You see these herbs a fair amount when you look into the testosterone and male vitality support space – they are popular and, honestly, pretty well regarded.
Tongkat Ali (1,000 mg) and shilajit (400 mg) have shown some potential in supporting testosterone levels, libido, and male vitality. Then there is a dash of vitamin support, made up of Vitamin D (4,000 IU), alongside vitamins K1 and K2 (100 mcg). These are all important for hormone regulation, overall metabolic function, and even bone health. These micronutrients are backed up by the minerals zinc (30 mg) and boron (4 mg), which have both been linked to testosterone metabolism (though only really in the presence of a pre-existing deficiency).
The picture is far from complete, however, because next up are couple of slightly odder inclusions. You get 675 mg of taurine, which is a little strange. It’s been shown to potentially support cellular health and circulation, though hasn’t really been linked to testosterone in any meaningful way. Fenugreek (also 675 mg) shows up in plenty of testosterone boosters for its ability to support libido, strength, and perceived energy levels. However, given you only get eight ingredients in Mars Men, it’s odd to see two of them being so underwhelming – taurine has no place here, and fenugreek is at best auxiliary and is only usually included in much more comprehensive ingredients lists. It’s nothing I would want to see a formula built around.
Several of these ingredients aren’t too daft. They may in theory support testosterone production or male health. However, the evidence consistently shows that ingredients like zinc an