evidence: For several years, there has been a graphic that has been circulated online trying to explain the colored squares that are found on the packaging of various products. It is said that different colors represent the chemical content of the product. Today we will verify if the toothpastecolor code rumor is valid. [...] The colors on toothpastes are another consumer tip that has been circulated on the internet and apparently it should provide information concerning the toothpaste to those who know where to look and what to look for on the packaging. And as with most indicators, what they are deemed to mean is not normally correct. [...] The colored squares on the tubes have no relationship with the content of the toothpaste. They are known as ‘color marks’ or ‘eye marks’, which are articles of the manufacturing process. These marks show whether the packet can be either folded or cut as interlocking units stream through machinery at a high speed and the makings can be seen using light beam sensors.