A process for extracting antioxidants from a plant, including contacting a plant material from a guayusa plant for a first time with a solvent, thereby obtaining a first slurry, filtering said first slurry, thereby obtaining a first extract, contacting said plant material for a second time with said solvent, thereby obtaining a second slurry, filtering said second slurry, thereby obtaining a second extract, combining said first extract and said second extract, thereby generating an third extract containing at least antioxidants, xanthines, and amino acids, and substantially drying said third extract.