Can this be diluted for insect repellant?

Hello Kim, Thanks for reaching out. Practically speaking, these peppermint sprays will each be effective for a wide variety of pests. Each contains 4% peppermint oil. While there can be some difference in the type of peppermint used, the list of other ingredients is the same. I would feel comfortable using them interchangeably. So no, you should not dilute. Hope this helps. Best Regards, Grace