Sachalinmint is a perennial herb, Mentha sachalinensis, synonym Mentha canadensis, the leaves of which are used for flavouring foods. Like other mints, it contributes a cool, fresh note to confectionery, beverages, and savoury dishes. Its essential oils carry the characteristic mint aroma, and harvest timing and drying affect how strongly the flavour comes through. As a regional mint species it illustrates the diversity within the Mentha genus, whose members supply flavourings to foods and drinks worldwide. Like other mints, it is harvested before flowering for the strongest aroma, and careful drying preserves its volatile oils. Its flavouring applications mirror those of peppermint and spearmint, seasoning confectionery, teas, sauces, and savoury dishes across many cuisines.