Crest Pro-Health changed their medicinal ingredients
Previously, Crest Pro-Health toothpaste has Sodium Hexametaphosphate as one of their medicinal ingredients. The new Crest Pro-Health toothpaste now has Zinc Citrate instead of Sodium Hexametaphosphate. Unclear if the change to Zinc Citrate will improve or degrade the anti-bacterial effectiveness of Crest Pro-Health toothpaste.