New, unused "Seigen Yakko Seigen Herbal Chinese Toothpaste 'Seigen Koshi Kou 100g'". Purchased in December 2024. Expiration date: September 20, 2026. Although it is new and unused, please understand that it has been stored at home before considering purchasing. Koshi Kou is based on the traditional toothpaste formula, with Seigen Herbal's unique blend of active ingredients. It contains medicinal ingredients such as blue salt, Chinese gypsum, Psoralea corylifolia (Hokotsushi), Sichuan pepper (Kasho), and Angelica dahurica (Byakushi), which help to remove heat caused by inflammation in the mouth, alleviate gum bleeding, and protect and strengthen teeth and gums. #Taiwan #MIT