I recently tried this Japanese mouthwash from Donki, and honestly, it exceeded my expectations. The product claims to help with '口臭を防ぐ' (preventing bad breath) and effectively targets the sources of oral odor, which I found to be true. After using it, my mouth felt noticeably cleaner and fresher. What impressed me the most was how it visually made impurities appear clearer, which is what the product description refers to with terms like '見えてスッキリ' (visibly clear and refreshing). This gave me confidence that it’s truly effective in oral cleansing. Using this mouthwash regularly helped reduce unpleasant smells throughout the day, giving me more confidence in social situations. It has a pleasant but not overwhelming flavor, which made it easier to incorporate into my daily routine. If you’re someone who is concerned about bad breath or the causes behind it, this mouthwash is a great addition to your oral care regimen. I highly recommend stocking up on it if you come across it at Donki, as I definitely wish I had bought more! The combination of odor elimination and a clean feeling in the mouth makes this product stand out compared to regular mouthwashes I have tried. Overall, it's a refreshing, effective product that supports long-term oral hygiene in a convenient and enjoyable way.