Shilajit works through direct testosterone and cellular energy pathways; maca works through neurological, endurance, and libido pathways. Some animal studies suggest black maca may support testosterone production, but this has not been confirmed in human trials. Maca improves male vitality, libido, and energy largely independently of testosterone — multiple human trials confirmed benefits with no significant testosterone changes. A pilot study published in the Journal of Ethnopharmacology tested male cyclists who received maca extract for 14 days versus placebo. For men working on fertility, maca combined with shilajit (which also demonstrates sperm quality benefits) represents a comprehensive two-ingredient natural fertility stack with multiple human studies supporting each compound. A 2001 study in Asian Journal of Andrology found that men who took maca for 4 months showed significant improvements in sperm concentration and motility versus baseline, with no changes in hormone levels.
It comes in various colors, each with its unique profile of benefits. Maca root isn’t a one-size-fits-all deal. When shopping for maca, it’s wise to look for organic and non-GMO versions. While maca is natural and largely considered safe, it’s essential to remember that not all bodies are the same. It might take a bit of getting used to, but given the potential benefits, many find it’s worth acquiring the taste.
A landmark 12-week randomized, double-blind, placebo-controlled trial published in CNS Neuroscience & Therapeutics found maca significantly improved self-reported sexual dysfunction and sexual desire in men. The libido research on maca is the most robust of all its benefits. Men with normal testosterone experience improvements because maca directly enhances neurological drive, energy pathways, and cellular stamina through its unique phytochemical profile.
In addition, the studies used different dosages and forms of maca, making it difficult to draw definitive conclusions. More research is needed to determine whether maca has similar effects in humans. In modern times, maca has gained popularity as a natural remedy for a range of conditions, including low testosterone.
One randomized, double-blind, placebo-controlled study was conducted examining the effects of reishi extract (dried and chipped with 30% ethanol) on testosterone concentrations (55). Twelve weeks of daily supplementation with 1667 mg of garcinia, equivalent to 1000 mg of hydroxycitric acid, in 25 overweight or obese men aged between 20 and 65 y did not significantly increase testosterone concentrations compared with men in the placebo group. One randomized, double-blind, placebo-controlled study was conducted examining the effects of a garcinia extract (standardized to contain 60% hydroxycitric acid; details of extraction process not provided) on testosterone concentrations (43). One randomized, double-blind, placebo-controlled study was conducted examining the effects of a rhodiola extract (standardized to 3% rosavins) on testosterone concentrations (46). Three randomized, double-blind, placebo-controlled studies (41, 52, 66) examined the effects of maca on testosterone concentrations.
More research is needed to confirm a direct rise in serum testosterone levels with maca use. Maca also helps nourish the adrenal glands, which may support testosterone levels in both men and women. Over time, maca has been used to support energy levels and promote fertility and stamina. This article examines the scientific evidence to explore whether maca can influence testosterone levels in humans.
While more research is needed to fully understand its potential benefits, maca is generally considered safe for most people and may offer a range of health benefits. However, the evidence doesn't point towards it being able to improve testosterone levels. While there is some evidence to suggest that maca may have a positive effect on libido levels, more research is needed to confirm these findings. Some people also use maca for fertility and sexual function reasons; however, its efficacy depends on limited and low-quality clinical studies. Reminiscent of turnips, maca root has long been used as an aphrodisiac since ancient times. Another study published in the journal Nutrients in 2016 found that maca extract improved cognitive function in mice. For example, a 2015 study published in the journal Menopause found that postmenopausal women who took maca supplements had improved mood and decreased anxiety compared to those who received a placebo.
It’s still unclear whether maca has any real benefit for treating low libido, sexual dysfunction, or infertility in either males or females. However, research on its benefits has been mixed, with more studies needed to support the claims. Maca root may not raise testosterone the way synthetic hormones can, but that does not mean it has no role. "I began using maca to support drive and noticed a nice increase within about a week.

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