Maca root
The best-known botanical in this segment, and it appears both as a standalone product and inside blends. Solaray Maca Root 525mg, listed in Guardian Indonesia's men's assortment, is a clear example of the single-ingredient approach: one root extract, a straightforward capsule, a 100-capsule pack. When a formula names a single botanical and doses it clearly, you know what you're evaluating.