Be Young Essential Oils
In folk medicine, spearmint (Mentha spicata) has been used for gastrointestinal distress, respiratory problems, stomach ache, dandruff, bad breath, and chronic bronchitis, and as a sedative.
Spearmint was found to exhibit taste and olfactory properties similar to the sweetness of sugar and has been suggested as a possible aid for reducing sugar intake.
Gardeners often use spearmint-based sprays to keep pests out of their gardens. Spearmint has been shown to inhibit weevils, mites, greenhouse whiteflies, sciarid flies, roundworms, and nematodes, and to reduce root galling.
A constituent of spearmint, piperitenone oxide, exhibited toxic, repellent, and reproduction-retardant properties toward the malarial vector mosquito Anopheles stephensi. However, spearmint is not effective in all cases, as crushed spearmint was not found to be effective at protecting roses from Japanese beetles.