What makes the Japan Dr. White Stain Removal Toothpaste very special? Japan Dr. White Stain Removal Toothpaste was developed by Dr. YĹsuke Sasada's research team, creative nano-drug loading technology, combined with various plant extracts, effectively removes tartar, inhibits the formation of dental plaque, and promotes oral flora balance. Ultimately restore oral health and fresh breath in 4 weeks. Japan Dr. White Stain Removal Toothpaste is a milestone in my research career and I am proud that our team has created a product that is an excellent way to remove calculus and restore oral health for people. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.