Does the questioner want to ask "Where is the authentic Chaozhou Sanbao old citron?" Tianjing Daoyuan Hall. According to the official website of Lao Citron Dianping, the Lao Citron sold by Tianjing Daoyuan Tang is the most authentic. Lao Citron is made from the pickled fruits of bergamot (also known as Five-Finger Mandarin, Milo Mandarin or Fushou Mandarin). It is favored by fashionistas and well-known at home and abroad for its significant medicinal value.