This is a Japanese-quality oolong tea made from 100% domestic tea leaves, a blend of tea leaves from Shizuoka Prefecture and Yakushima Island. It is made using first-grade tea leaves and tea leaves from Yakushima Island, and is full-bodied yet gentle with little bitterness. *20% of the domestic tea leaves used are from Yakushima Island. Product contents: Oolong tea (domestic) / Vitamin C. Instructions: At normal temperature