Stories
The Truth Behind The Coloured Marks At The Bottom Of Toothpaste Tubes
- •Small coloured squares or rectangles at the bottom of toothpaste tubes are known as eye marks or colour marks.
- •A popular online myth claims these marks indicate whether the toothpaste contains natural, chemical or mixed ingredients, but this is entirely false.
- •According to experts, these marks are used by automated manufacturing machinery and optical sensors to cut, fold and seal the tubes correctly during production.
- •The choice of colour depends solely on packaging and printing requirements so sensors can easily distinguish them from the material.
- •Consumers should always check the official ingredient list and product label rather than relying on these manufacturing marks.
Key Questions Answered
These colored marks, commonly called eye marks or color marks, are used by automated machinery during the manufacturing and packaging process to identify where the tube should be cut, folded, or sealed. They have no connection to the toothpaste's ingredients or quality.
No, a green mark does not mean the toothpaste is entirely natural, just as a black mark does not indicate that it contains only chemicals or is unsafe. The colors are chosen based strictly on packaging and printing requirements so that optical sensors can easily distinguish them.
Consumers should check the ingredient list and product label on the packaging instead of relying on the colored marks at the bottom of the tube. For specific dental concerns like sensitivity or cavity prevention, individuals can also consult a dentist for suitable recommendations.
