Sawtooth herb is used in jeow, eaten fresh and added to stews. It goes well with fish. It can be eaten raw as an accompaniment to papaya salad and with lahp. The Akha are partial to it.  Use as a substitute for coriander leaves and some basils. Coriander leaves (cilantro) may be substituted for sawtooth herb. The herb is usually available in places where Vietnamese ingredients are sold. It grows in clumps, and is  easily propagated by plant division.