Yerba mate leaf extract concentrates South American holly (Ilex paraguariensis) into a consistent dose of caffeine and polyphenols. The extract comes in capsules or mixes into room-temperature drinks. This avoids the very hot water used in traditional brewing, which can irritate the esophagus.
The caffeine stimulates the central nervous system, sharpening alertness and lifting energy. Most people take it in the morning or early afternoon so it doesn't disturb sleep. Caffeine-sensitive individuals should begin with a small amount.
Anyone pregnant, breastfeeding, or taking medication needs to check with a healthcare provider first.