It's a neurotoxin and there the argument that it's good for your teeth is grossly misleading. It's corrosive properties are hardly something you are suppose to ingest or expose to the cells of the mouth which absorbs a small percentage of the matter it's exposed to. Salt water is as effective as any mouth wash and NEEMleaf products are great all natural options for both tooth paste and mouth wash. When buying bottled water, I typically look for water with dissolved minerals levels around 300 PPM with 0 fluoride. Many brands i.e REAL CANADIAN sell bottles with 0.07 PPM and others with 0.00 PPM levels of fluoride. I've had to be careful. Fluoride is a derivative of FLUORINE, which is an element on the periodic table. FLUORINE is rarely found in it's natural gas form, and fluoride is a more stable compound. It's corrosive behaviour may be able to prolong life of the teeth but at what cost? It's clear it disrupts our systems and there have been other options available for years before modernized tooth paste was developed. Long term exposure or avoidance can offer significant ramifications, for better and for worse. Using optimal nutrient intake, including proper mineral balance in the diet (calcium, magnesium etc) would seem to a be a much more effective and healthier solution for the many systems circumventing the body. Thanks for this. Seems to get forgotten within main stream.