Blue Stripe: Toothpaste with a blue stripe often signifies a blend of natural toothpaste with added medicinal ingredients. These could include whitening agents or specific pain relievers.

Black Stripe: The least favorable color to find on your toothpaste tube is black, indicating that the toothpaste is entirely formulated from artificial chemicals. Such formulations may not be ideal for daily use.

Understanding these color codes helps consumers make informed choices about the toothpaste they use, ensuring they align with personal preferences and health considerations.