Seija no Tansan Sparkling ♡ Edible baking soda from Yamaguchi Prefecture ♡ Edible citric acid from Kagoshima Prefecture 【Expiration Date】 November 19, 2026 【Instructions】 Mix one packet each of baking soda and citric acid into 150-300ml of water and enjoy. It tastes even better with well-chilled water. 【Recommended Dosage】 1-2 servings per day ・To reduce shipping costs, we will ship without the box. If you would like the box, please comment before purchasing as you will be responsible for the shipping costs. ・We may change the shipping method between Yu-Yu Mercari Bin and Rakuraku Mercari Bin. Thank you.