【New, Unopened】SI-WATER High Concentration Silica Nanocolloid Water 500ml x 5 Bottles Expiration Date: July 25, 2026 This is a set of 4 bottles of 'SI-WATER', which is a nanocolloid of water-soluble silica, attracting attention from those highly interested in beauty and health, created using a unique natural fermentation method. All items are new and unopened. My family used to drink it, but we no longer need it, so I am selling it. It has been stored in a dark place. 【Product Overview】 ・Contents: 500ml x 4 bottles ・Ingredients: Water, High-concentration water-soluble silicon (silica) ・Hardness: 121mg/L (hard water) ・pH: 8.0〜9.0 (weakly alkaline) ・Water source: Kirishima City, Kagoshima Prefecture ・Silica content: 667mg/1000ml ・How to drink: Please drink 50-250ml per day as a guide. ※Occasionally, white crystals may appear, but these are crystallized natural mineral components and do not affect the quality. Immediate purchase is available. I will carefully pack and ship the items.