NOW Foods Maca 500 mg provides a concentrated extract of Lepidium meyenii — a cruciferous root vegetable native to the high-altitude Peruvian Andes that has been cultivated for over 2,000 years as an adaptogenic food and traditional medicine. Maca is classified as an adaptogen for its ability to help the body adapt to physical and emotional stress, and it has been specifically studied for its effects on energy, stamina, libido, and hormonal balance in both men and women. Unlike hormone-containing herbs, maca works through neuroendocrine mechanisms rather than direct hormonal activity, making it suitable for those who want hormonal support without plant estrogens or androgens. NOW Foods provides 500 mg of pure maca root extract in a vegetarian capsule, manufactured in their GMP-certified facility and tested for identity and potency.