I just thought you'd like to know.
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"The colored squares on the bottom of toothpaste tubes have nothing to do with the product’s content. Actually, they are manufacturing process’ artifact, also known as color marks, printed marks or eye marks.
These artifacts are supposed to be read by light beam sensors in order to be typically identified so the high-speed machinery knows where the packaging needs to be folded or cut. All these processes work as a connected unit stream."
That coding wouldn't even make sense since all toothpastes are made entirely of chemicals. None of those things are mutually exclusive. Medicines and natural compounds ARE chemicals. Some chemicals (including medicines) are natural, some are artificial.0