Yerba Mate (YER-ba MAH-tay) Have you tried My Great Mate? Yerba Mate has been used as a base for herbal medicines in South America going back centuries and has been buzzing with attention world wide for it's nutritional, antioxidant & stimulating qualities. My Great Mate is a great alternative to Tea or Coffee and better than Green Tea! We sell premium quality Yerba Mate that offers nutritional value together with an unforgettable aroma and taste.