What Is Toothpaste Made Of?
PEOPLE HAVE USED some form of paste to help keep their teeth clean since at least 3000 BC in ancient Egypt. Modern toothpaste first appeared in the 1700s and was usually homemade. A dentist first added soap to dental paste in 1824, and John Harris added chalk in the 1850s. 20 years later, Colgate began […]
What Is Toothpaste Made Of? Read More »