Peppermint and Citrus essential oil have properties including nootkatone and monoterpenoids which have been found to repel insects such as ticks, spiders, roaches, moths, flies, fleas, beetles, and ants. Our founder Dan actually uses his Scented Woolies with the Citrus Mint to repel ants from his caravan by putting them in the cupboards and draws. No more summer ant infestations.