◆ I purchased this, and it's a highly-praised toothpaste said to be incredibly effective for natural teeth! I have ceramic (laughs). I opened one, so there are 5 tubes left, one less than when I bought it ♡ ❥ I've heard that many people with natural teeth are concerned about yellowing. Even dental hygienists recommend this product! ❥ It's small, so it's perfect for travel or taking care of your teeth during lunch at work. You can just put it in a case with your toothbrush ♡ ❥ I've quoted the following text for clarity! The invisible micro-scratches on the surface of your teeth can cause plaque and stains to adhere. The nano-particle medicinal hydroxyapatite contained in Apaguard Renamel repairs damaged tooth surfaces and replenishes minerals in the teeth. It makes it harder for plaque and stains to stick and prevents cavities. Feature 1: Adsorbs and removes plaque Nano-particle medicinal hydroxyapatite has the property of adsorbing mutans bacteria, which is the source of plaque. Feature 2: Fills in micro-scratches Nano-particle medicinal hydroxyapatite is ultra-fine! It replenishes hydroxyapatite, the main component of teeth, at the nano level. By filling in micro-scratches, the teeth become smooth, making it harder for plaque and stains to stick. Feature 3: Remineralizes early-stage cavities Nano-particle medicinal hydroxyapatite replenishes minerals that have dissolved from the enamel and remineralizes it.