*PURE VITAMIN C (ASCORBIC ACID) CAPSULES - 1,000MG PER CAPSULE - NO CITRUS - NO FILLERS - 100% MANUFACTURED IN THE UK* WHERE IS IT MADE? 95% of Vitamin C supplements are manufactured in China. This isn’t necessarily an issue, since they have many extremely advanced factories. However, there are also many poorer quality facilities, which can make low grade supplements with more contaminants, and use questionable ingredients. Cheap GMO corn is sometimes used, and Vitamin C supplements have been found to contain Glyphosphate, and often contain high levels of heavy metals.