Jeonnam Agricultural Research and Extension Services in Korea developed discarded safflower shoots into tea and exported them to the United States. Safflower, traditionally used in Korea as an ingredient in rouge and gonji, is now being used as a health food to prevent osteoarthritis in Korea. The researcher, Lee Yu-seok, discovered the osteoarthritis prevention effects of quercetin and luteinolin in discarded safflower shoots and developed a patented technology, contributing to improving the profits of safflower farmers.