100% natural Mint tea is a herbal tea made by infusing mint leaves in hot water. Mint tea made with peppermint leaves is called peppermint tea, and mint tea made with spearmint is called spearmint tea. There also exist teas that infuse peppermint and spearmint leaves.Benefits of herbal peppermint tea Ease Digestive Upsets. ...Help Relieve Tension Headaches and Migraines. ...Freshen Your Breath. ...Relieve Clogged Sinuses. ...Improve Energy. ...Help Relieve Menstrual Cramps. ...Fight Bacterial Infections. ...Improve Your Sleep.