Maca only grows well at extreme altitude in the Peruvian Andes, which is part of why it stayed a regional food crop for so long before showing up in supplements worldwide.
Unlike ginseng, most of the research interest in maca is specifically about libido rather than general stamina — a narrower but more directly relevant angle for this formula.
It's grouped here with tribulus terrestris because both are studied primarily for hormone-related effects rather than energy.
In this formula: Maca Root is one of six named ingredients — see the full division of labor on our how it works page.