Peppermint is a hybrid of watermint and spearmint. When ingested Peppermint promotes healthy respiratory function and clear breathing. Peppermint can also be used to aid in an upset stomach.
Peppermint is widely used in gums or toothpaste, but I actually use Peppermint very differently.
I use Peppermint daily on my sinus passages, along with Lavender to help keep my sinus passages clear. Peppermint is a natural antihistamine. I no longer use allergy medication to treat my seasonal allergies. I use Peppermint, Lavender and Lemon.