Have you ever wondered what colour coding on your toothpaste tubes indicates? Even if you haven't, there is a new claim on social media that differentiates the tubes based on coloured blocks. Multiple social media posts claim that the tiny square you see on the bottom of the tube of your toothpaste is actually part of a colour code related to the ingredients present in the product.Here Is What The Claim StatesIf there is a green square, it means the toothpaste is made from only natural ingredients.A blue mark means it contains a mix of natural ingredients and medication.A red marking means that the product contains both natural ingredients and chemical ingredients.And, if your toothpaste has a black square, it means it contains only chemical ingredients.Is The Colour Coding True?No. The colour coding is not true. One of that it does is make a distinction between 'Natural' And 'Chemical' ingredients. Experts state that all natural ingredients are made up of chemical compounds. Another issue is that it doesn't explain what "medicine" is. Is it referring to fluoride, the mineral that's often added to toothpaste to help protect against cavities? There's no way to know.Bigger misinformation is that companies do not colour code these toothpastes because of an attempt to pull the wool over consumers' eyes. In fact, as Snopes points out, the reason for the marks has to do with how toothpaste tubes are made. The marks help light sensors detect the end of the tube, so that the machines used to prepare the tubes know where to cut or seal them.Is There A Way To Distinguish Between If my toothpaste tubes aren't colour coded, then how do I know which one to brush my teeth with? This is a question that may ask. The information is usually printed on the packaging, either on the tube itself or on the box it came in.As the Indian Dental Association most of the toothpastes contain the same basic ingredients. The list includes abrasives to help clean the teeth, humectants to keep the gel or paste soft, flavouring agents and detergents to help the toothpaste foam. The IDA points out the importance of looking for a toothpaste that contains fluoride, as that ingredient helps to prevent tooth decay and cavities by strengthening the enamel.