The Secret Code on Your Toothpaste Tube Most People Never Notice

• Green: All natural ingredients

The primary purpose of these marks is to tell machines where to cut and fold the material during high-speed manufacturing. They also help quality control inspectors quickly identify the product composition.

Next time you squeeze your toothpaste, take a moment to check what color square your brand has—you might be surprised by what you’re actually putting in your mouth each day!