 FLOWER MOUND, Texas--BUSINESS WIRE--Mannatech, Incorporated NASDAQ: MTEX, a global health and wellness company committed to transforming lives to make a better world, today announced financial results for its fourth quarter of 2020. Quarter End Results Fourth quarter net sales for 2020 were 39.2 million, a decrease of 0.2 million, or 0.5, as compared to 39.4 million in the fourth quarter of 2019. During the fourth quarter, our net sales declined 2.5 on a Constant dollar basis a Non-GA 