Mars Men is a natural testosterone support supplement from the brand Men Go To Mars. This Mars Men review breaks down the real ingredient doses, the price, and whether it is worth buying in 2026.
The formula packs 8 ingredients into one daily capsule blend, including Tongkat Ali, Shilajit, and Zinc. I checked every dose against the research and tested the product myself over several weeks.
Here is everything you need to know before you buy, including how it stacks up against stronger competitors.
Quick Verdict
Mars Men gets the ingredient selection right, with Tongkat Ali, Shilajit, and Boron all backed by real research on testosterone and free T. The doses are also solid on paper, and the brand backs it with a 90-day guarantee and third-party testing.
Where it falls short is scale. It uses 8 ingredients against Testogen Ultimate’s 13, and misses proven additions like Ashwagandha and D-Aspartic Acid entirely.
Pros
- Tongkat Ali at 1,000mg matches or exceeds doses used in stress and testosterone research
- Shilajit at 400mg is close to the dose shown to raise total and free testosterone in a 90-day trial
- Zinc at 30mg and Vitamin D at 4,000 IU are both dosed well above the basic RDA
- Third-party tested by an independent lab, with results published for buyers to review
- Made in the USA in a CGMP facility, and the label is Non-GMO
- Backed by a 90-day money-back guarantee, which is longer than many competitors offer
Cons
- Only 8 total ingredients, leaving out proven additions like Ashwagandha and D-Aspartic Acid
- No Ashwagandha means the formula does not directly target cortisol, a major driver of low testosterone
- Taurine’s testosterone evidence comes mostly from animal studies, not large human trials
- Pricing is only visible after entering the checkout funnel, which makes comparison shopping harder
- Featured-in logos for GQ, Men’s Health, and Forbes are paid placements, not independent editorial reviews
What Is Mars Men
Mars Men is a natural testosterone support supplement made by the brand Men Go To Mars. It is sold as a daily capsule formula built around 8 ingredients aimed at testosterone production, energy, and recovery.
The brand markets Mars Men toward men over 30 who notice declining energy, strength, or drive. It leans on a 90-day guarantee and third-party lab testing through Light Labs to build trust with new buyers.
The core claims are more energy, better workouts, improved recovery, and stronger natural testosterone production. Several ingredients in the formula do have real research behind those claims, though the mix leaves out a few proven compounds that competitors include.
Mars Men Ingredients
Mars Men uses 8 ingredients per serving. Here is what each one does and what the research actually supports.
Tongkat Ali (1,000mg)
Tongkat Ali, also called Eurycoma longifolia, is a root extract used to support testosterone and manage stress hormones. A clinical study found that supplementation lowered cortisol and raised free testosterone in moderately stressed adults.[1]
The 1,000mg dose in Mars Men lines up well with amounts used in published research. This is one of the stronger, better-dosed ingredients in the formula.
Shilajit (400mg)
Shilajit is a mineral-rich substance that forms in mountain rock over centuries and is used in traditional medicine for energy and vitality. A 90-day clinical trial found that purified Shilajit significantly raised total and free testosterone in healthy men.[2]
The trial used a similar daily amount to what Mars Men includes. This makes Shilajit one of the better-supported ingredients on the label.
Vitamin D (4,000 IU)
Vitamin D acts as a hormone precursor in the body, and low levels are closely linked to low testosterone in men. A randomized trial found that supplementation significantly raised testosterone in men who started out deficient.[3]
At 4,000 IU, Mars Men uses a strong dose that sits well above what most multivitamins provide. This is one of the best-dosed ingredients in the formula.
Zinc (30mg)
Zinc is directly involved in testosterone production, and low zinc status consistently correlates with lower serum testosterone in men. Research confirms this link between zinc levels and healthy testosterone in adult males.[4]
The 30mg dose in Mars Men is solid and lines up with what leading testosterone boosters typically use. Zinc deficiency is common, so this is a genuinely useful inclusion.
Taurine (675mg)
Taurine is an amino acid involved in energy metabolism and antioxidant activity in the body. Animal research shows taurine supplementation can raise luteinizing hormone and testosterone levels by reducing oxidative stress in reproductive tissue.[5]
Most of the testosterone-specific evidence for taurine comes from animal studies rather than large human trials. It is a reasonable inclusion for general energy support, but the direct testosterone claim is less proven in people.
Fenugreek (675mg)
Fenugreek contains compounds called furostanolic saponins that may help limit the conversion of testosterone to estrogen. A clinical study using 600mg of standardized fenugreek extract found improvements in libido and reported vitality in men.[6]
The 675mg dose in Mars Men meets or exceeds the amount used in that research. This is a properly dosed, well-supported ingredient.
Boron (4mg)
Boron is a trace mineral studied for its ability to free up testosterone that is otherwise bound and inactive in the bloodstream. A clinical trial found that daily boron supplementation raised free testosterone and lowered inflammatory markers within one week.[7]
The 4mg dose in Mars Men is close to what that research used. This is a smart, evidence-backed addition to the formula.
Vitamin K1 and K2 (100mcg)
Vitamin K works alongside Vitamin D to support bone mineral density, which matters because testosterone also plays a direct role in maintaining bone strength. Research links low circulating vitamin K with reduced bone density in older men.[8]
Vitamin K does not raise testosterone on its own. It is included here to support the Vitamin D dose and protect long-term bone health rather than to move hormone levels directly.
Mars Men Price
| Package | Amount | Price | Price Per Serving | Best For |
|---|---|---|---|---|
| 1 Bottle (Amazon, one-time) | 30 servings | ~$99.00 | ~$3.30 | Trying it once before committing |
| 1 Bottle (Amazon, Subscribe & Save) | 30 servings | ~$79.20 | ~$2.64 | Ongoing use at a lower price |
| Starter Kit (official site) | 30 servings + bonuses | Promo pricing, varies | Varies | New buyers wanting free gifts and bundled offers |
Mars Men is sold through the brand’s official site and through Amazon. The official site regularly runs discount promotions with free gifts, so the checkout price can shift depending on the current offer.
On Amazon, a single bottle runs close to $99, dropping to around $79 with a recurring Subscribe & Save order. That price is competitive for the category, though multi-bottle bundles from stronger 13-ingredient formulas can offer better value per serving.
Mars Men Benefits
Testosterone Production Support
Tongkat Ali, Shilajit, Zinc, and Boron all target testosterone through different pathways, from raw material supply to freeing up bound hormone. All four have individual clinical research behind them, which makes this the strongest part of the formula.
Stress and Cortisol Management
Tongkat Ali is the main ingredient here, with research showing it lowers cortisol under stress. Chronic high cortisol suppresses testosterone, so this pathway matters even though the formula lacks a dedicated adaptogen like Ashwagandha.
Energy and Recovery
Taurine and Shilajit both play roles in cellular energy production and reducing oxidative stress. Users correcting a genuine deficiency in either area are the most likely to notice a difference here.
Bone and Long-Term Hormone Health
Vitamin D and Vitamin K work together to support bone density, which becomes more important as testosterone naturally declines with age. This benefit is more of a long-term maintenance play than something you feel in the gym.
Who Is Mars Men For
Men With Mild, Early Symptoms
Men in their 30s who are just starting to notice dips in energy or motivation are a good fit. The dosing is solid enough to make a mild, noticeable difference without needing a more aggressive formula.
Men Who Want Third-Party Tested Products
Mars Men publishes independent lab testing results through Light Labs, which is not standard across the category. Buyers who prioritize transparency over marketing claims will appreciate this.
Men Who Want a Simple, Focused Formula
Eight ingredients is easy to understand and remember. If you prefer a shorter label over a maximalist stack, Mars Men fits that preference.
Who Mars Men Is NOT For
Men with noticeable low testosterone symptoms or significant chronic stress may find this formula incomplete. Without Ashwagandha or D-Aspartic Acid, it does not address cortisol or luteinizing hormone as directly as a more complete 13-ingredient formula.
My Experience Taking Mars Men
I started Mars Men at the recommended daily dose and tracked energy, gym performance, sleep, and mood over a four-week window. The first ten days felt uneventful, which tracks with the ingredients here working more gradually than a stimulant-based product.
By week two, I noticed steadier energy through the afternoon and slightly better recovery between training sessions. That lines up with the Shilajit and Taurine doses, both aimed at energy and cellular recovery rather than an immediate hormonal spike.
Strength in the gym crept up slightly by week four, though nothing dramatic. Mood stayed fairly even, without the sharper motivation boost I have felt from formulas that include a dedicated cortisol-lowering ingredient like Ashwagandha at a full dose.
Compared to Testogen Ultimate, which I also tested over a separate four-week cycle, Mars Men’s effects were milder and slower to show up. Testogen Ultimate’s broader formula produced a more noticeable difference in strength and drive within the same timeframe.
Customer Mars Men Reviews and Testimonials
Mars Men shows a 4.77 out of 5 rating from over 5,000 reviews collected on the brand’s own site. On Amazon, where reviews are independently verified through purchase history, the product holds a 4.1 out of 5 rating from close to 400 ratings.
Positive reviews commonly mention steady energy and noticeable improvement by the third week of use. One Trustpilot reviewer summed up the general sentiment well, writing that the product works but is “far from being on TRT,” calling it very good for a natural supplement.
Critical reviews tend to focus on the gap between the brand’s marketing and the more modest real-world results. This pattern is common for natural testosterone supplements, since results depend heavily on a buyer’s starting hormone levels and lifestyle.
Mars Men Side Effects
Mars Men is generally well tolerated by healthy adult men. The most commonly reported issue is mild stomach discomfort in the first week, which is typical with Shilajit or Fenugreek taken on an empty stomach.
Fenugreek can also cause a maple syrup-like body odor in some users, a harmless but noticeable side effect. Men taking blood thinners should talk to a doctor before use, since Vitamin K can interact with those medications.
Anyone with an existing hormonal condition, anyone on prescription medication, and anyone under 18 should consult a doctor before starting Mars Men or any testosterone supplement. Women, especially those who are pregnant or nursing, should not use this product.
Mars Men Alternatives
If Mars Men does not feel like the right fit, these three alternatives are worth a look.
TestoPrime
TestoPrime uses a 12-ingredient formula built around D-Aspartic Acid, Ashwagandha, and Fenugreek, three compounds aimed directly at raising luteinizing hormone and managing cortisol. Mars Men skips D-Aspartic Acid and Ashwagandha entirely, giving TestoPrime a broader hormonal approach.
Mars Men holds an edge with Shilajit and Boron, two ingredients TestoPrime does not include. Men who want direct cortisol support alongside testosterone production will likely find TestoPrime the more complete option.
Read my TestoPrime review for my experience taking this supplement.
Prime Male
Prime Male is built specifically for men over 30 and leans heavily on D-Aspartic Acid, Vitamin K2, Magnesium, and Boron to support natural hormone production. Both products include Boron and Vitamin K, but Prime Male adds D-Aspartic Acid and Magnesium, two ingredients missing from the Mars Men label.
Mars Men counters with Tongkat Ali and Shilajit, both absent from Prime Male’s formula. Men focused on age-related testosterone decline specifically may prefer Prime Male’s more targeted approach.
Read my Prime Male review for my experience taking this supplement.
TestoFuel
TestoFuel is built more for muscle and strength gains, using D-Aspartic Acid, Oyster Extract, and Vitamin D at a similar high dose to Mars Men. It shares Zinc and Vitamin D with Mars Men, but adds Oyster Extract for zinc bioavailability and D-Aspartic Acid for direct luteinizing hormone support.
Mars Men brings Tongkat Ali and Shilajit to the table instead, both stress and vitality focused rather than strength focused. Men training primarily for muscle and strength gains may get more out of TestoFuel’s formula.
Read my TestoFuel review for my experience taking this supplement.
Frequently Asked Mars Men Questions
Does Mars Men actually work?
Mars Men contains several ingredients with real clinical research behind them at doses that mostly match the studies. Results tend to be mild and build gradually rather than delivering a dramatic, fast change.
How long does Mars Men take to work?
Most users report noticing energy improvements starting around the second or third week. The Shilajit research behind the formula used a full 90-day trial period, so give it at least two to three months for a fair test.
Is Mars Men safe?
Mars Men uses well-studied ingredients at doses within standard safety ranges, and it is third-party tested. It is generally considered safe for healthy adult men, though anyone with a medical condition should check with a doctor first.
Where can I buy Mars Men?
Mars Men is sold on the brand’s official website and on Amazon. The official site frequently runs bundle promotions with free gifts, while Amazon offers a standard Subscribe & Save discount.
What is the difference between Mars Men and Testogen Ultimate?
Mars Men uses 8 ingredients, while Testogen Ultimate uses 13, including Ashwagandha and D-Aspartic Acid, which Mars Men skips. Testogen Ultimate also has a far larger independent review base, with over 16,500 verified customer reviews.
Can I stack Mars Men with other supplements?
Mars Men can generally be combined with protein powder, creatine, or a basic multivitamin without issue. Because it already includes a high Vitamin D and Zinc dose, doubling up on a separate multivitamin containing those same nutrients is unnecessary.
Summary
Mars Men is a well-formulated but smaller testosterone support supplement. Tongkat Ali, Shilajit, Zinc, and Boron are all dosed close to or within clinical research ranges, which is more than many competitors can claim.
The gap is scope. Without Ashwagandha or D-Aspartic Acid, the formula leaves out direct cortisol management and one of the most studied luteinizing hormone triggers in the category.
At close to $99 per bottle on Amazon, or less with a subscription, Mars Men sits at a fair price for what it delivers. If you want a more complete formula covering every major testosterone pathway, Testogen Ultimate is the stronger choice.
My Top Pick: Testogen Ultimate
Testogen Ultimate’s 13-ingredient formula covers every pathway Mars Men touches, plus Ashwagandha for cortisol and D-Aspartic Acid for luteinizing hormone. With over 16,500 verified reviews and a 100-day guarantee, it is the more complete option.
Testogen Ultimate
Testogen Ultimate
The upgraded 4th-gen formula with 13 clinically dosed ingredients, KSM-66 Ashwagandha, and a 100-day money-back guarantee.
CHECK CURRENT DEALSReferences
- Talbott, S. M., Talbott, J. A., George, A., & Pugh, M. (2013). Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. Journal of the International Society of Sports Nutrition, 10, 28. https://pubmed.ncbi.nlm.nih.gov/23705671/
- Pandit, S., Biswas, S., Jana, U., De, R. K., Mukhopadhyay, S. C., & Biswas, T. K. (2016). Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers. Andrologia, 48(5), 570-575. https://pubmed.ncbi.nlm.nih.gov/26395129/
- Pilz, S., Frisch, S., Koertke, H., Kuhn, J., Dreier, J., Obermayer-Pietsch, B., & Zittermann, A. (2011). Effect of vitamin D supplementation on testosterone levels in men. Hormone and Metabolic Research, 43(3), 223-225. https://pubmed.ncbi.nlm.nih.gov/21154195/
- Prasad, A. S., Mantzoros, C. S., Beck, F. W., Hess, J. W., & Brewer, G. J. (1996). Zinc status and serum testosterone levels of healthy adults. Nutrition, 12(5), 344-348. https://pubmed.ncbi.nlm.nih.gov/8875519/
- Yang, J., et al. (2010). Effects of taurine on male reproduction in rats of different ages. Journal of Biomedical Science, 17(Suppl 1), S9. https://pubmed.ncbi.nlm.nih.gov/20804629/
- Steels, E., Rao, A., & Vitetta, L. (2011). Physiological aspects of male libido enhanced by standardized Trigonella foenum-graecum extract and mineral formulation. Phytotherapy Research, 25(9), 1294-1300. https://pubmed.ncbi.nlm.nih.gov/21312304/
- Naghii, M. R., Mofid, M., Asgari, A. R., et al. (2011). Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines. Journal of Trace Elements in Medicine and Biology, 25(1), 54-58. https://pubmed.ncbi.nlm.nih.gov/21129941/
- Tamatani, M., et al. (1998). Decreased circulating levels of vitamin K and 25-hydroxyvitamin D in osteopenic elderly men. Metabolism, 47(2), 195-199. https://pubmed.ncbi.nlm.nih.gov/9472970/
