Also known as tisanes, are tea-like beverages that do not come from the Camellia sinensis plant species. These usually have no caffeine, although there are some exceptions. Luxury grade herbal teas can be found in many corners of the world. They can be comprised of flowers, herbs or leafy plants, highly characteristic of the regions in which they are grown. Caffeine is generally not found in herbal teas. Antioxidant levels vary so widely generalization is not practical.