Blue stripe
Toothpaste with a blue colored stripe may indicate that the toothpaste is a combination of a natural toothpaste, with added medication. By “added medications” we mean that toothpaste may contain whitening agents or certain types of pain relievers.
Worst of all
The worst color you want to see on your toothpaste packaging is the black color stripe. A black colored stripe indicates that the toothpaste is 100% made from synthetic chemicals. This is something you don’t want to consume every day.
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