Our Just for Grins blend was formulated without peppermint, for those who are on homeopathic treatment. (Peppermint deactivates homeopathic remedies). Some people like Just for Grins though simply because they prefer different oils. It is the favorite of Well Scent Founder, Stacy Shuman. But if you want to learn more about the therapeutic value of each blend, please read the post on our blog HERE.