Tongkat Ali, Maca, Ashwagandha and Other Herbs for Male Vitality: An Evidence Check

Updated 2026-10-08 · BotanicEdge Editorial Team

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Open almost any men's vitality supplement and you will find the same names: tongkat ali, maca, ashwagandha, horny goat weed, tribulus, ginseng. This guide looks at each one through independent sources, explains what the research does and does not show, and points to products on this site that contain them.

A quick note on how to read the evidence below. "Studied" does not mean "proven." Many herbal trials have fewer than 100 participants, last only a few weeks and are funded by companies that sell the extract. Systematic reviews, which pool several trials, give a more reliable picture, and we point to them where they exist. When a sales page quotes a lab or animal study, treat it as a starting point for research, not a result you can expect in people.

Which herbs show up most often in men's vitality supplements?

Across the products we track, these appear most often:

Does tongkat ali work?

Tongkat ali (Eurycoma longifolia) is a Southeast Asian shrub whose root extract is traditionally used for male vitality. A handful of small human trials have tested standardized extracts, usually around 200 to 400 mg a day, for stress, mood and testosterone in men, with modest and inconsistent results. Systematic reviews describe the evidence as promising but limited by small sample sizes and short durations (PubMed: tongkat ali reviews).

What this means for buyers: tongkat ali is one of the more reasonable inclusions, but the dose and extract type matter, and most labels in this niche do not disclose them. Boost Surge X is an exception, listing 10 mg of a 100:1 extract.

Is maca good for men?

Maca is a root vegetable from the Andes, eaten as food for centuries. Small trials suggest maca may affect sexual desire in some men, and one well-known study found no change in testosterone levels at the same time. A systematic review judged the overall evidence limited (PubMed: maca review). Maca is generally considered safe as a food.

Products that list maca include SpartaMax, Ragnaroak, Alpha Surge and Vivalis.

What does ashwagandha do for men?

Ashwagandha (Withania somnifera) is an Ayurvedic herb with more human trials than most herbs in this list. The NIH Office of Dietary Supplements summarizes studies on stress, anxiety and sleep, plus a few small trials in men that measured testosterone and semen quality (NIH ODS: Ashwagandha). It also notes rare cases of liver injury and limited long-term safety data, and advises caution for people with thyroid disease or autoimmune conditions.

Does tribulus boost testosterone?

The evidence says no for testosterone. The NIH ODS fact sheet on exercise supplements reports that studies have not shown tribulus raises testosterone or improves strength in men (NIH ODS: Exercise and athletic performance). Some small studies looked at desire with mixed results. Tribulus appears in Endo Peak, EloMaas and Alpha Drive.

What is horny goat weed?

Horny goat weed (epimedium) is a traditional Chinese herb. Its compound icariin has been studied mostly in lab and animal research, and those findings are often quoted on sales pages. Human trials are scarce, so claims about effects in people are not well supported. Very high doses have been linked to side effects such as dizziness and rapid heartbeat in case reports.

Is Asian ginseng worth it?

Asian ginseng (Panax ginseng) has a long history and a fair number of studies, though many are small. NCCIH notes possible benefits in some areas and warns that ginseng may lower blood sugar and interact with diabetes medicines and blood thinners (NCCIH: Asian ginseng). Short-term use is generally well tolerated.

Do L-arginine and beet root help circulation?

Both relate to nitric oxide, a molecule that helps blood vessels relax. NIH ODS describes mixed results for oral arginine and more consistent, modest benefits for dietary nitrate (from beet juice) in some endurance exercise (NIH ODS). Research doses are often several grams of arginine or a full serving of beet juice, which is far more than a gummy or capsule usually holds. People on nitrates or blood pressure medicine should ask a doctor first.

Which other herbs appear in these products?

• Saw palmetto: studied for prostate-related urinary symptoms, with weak results in large trials (NCCIH).
• Ginkgo: little proven benefit for most uses, possible bleeding risk (NCCIH).
• Hawthorn: studied for heart conditions, may interact with heart medicines (NCCIH).
• Mucuna pruriens: contains natural L-dopa; see our Vivalis review.
• Muira puama and damiana: traditional use, very little modern human research.

Why do supplement doses rarely match research doses?

Many studies use a single standardized extract at a meaningful dose, such as several hundred milligrams of ashwagandha root extract or a few grams of maca. Multi-ingredient formulas try to fit five to ten herbs into one or two capsules or a gummy, so each ingredient often ends up far below the amounts studied. On top of that, extract ratios (like 10:1 or 100:1) are not standardized across brands. That is why a product that lists amounts and extract types gives you much more to work with than one that lists names only.

Can these herbs be combined safely?

Most of these herbs have been studied one at a time, not in combination. Combining ingredients that act on blood pressure, blood sugar or bleeding, such as ginseng, ginkgo, L-arginine and hawthorn, can add up in ways that single-herb studies do not capture. If you take any prescription medicine, ask a pharmacist to review the full ingredient list before you start.

How should you use this information?

Look for products that list amounts, avoid stacking formulas with the same herbs, and check interactions with a pharmacist. Our buying checklist turns this into steps, and the natural testosterone support guide covers habits that often matter more than any herb.

Sources consulted: pubmed.ncbi.nlm.nih.gov, ods.od.nih.gov, nccih.nih.gov.