Anise is an antispasmodic herb, meaning it helps calm the gastrointestinal (GI) tract. It is most commonly used for gas + bloating. It is a GI relaxant that calms the digestive tract by breaking up intestinal gas.
Peppermint is a well-known herb for gastrointestinal upset and digestive support. The aromatic leaf is rich in oils that have been shown to calm the digestive tract and reduce bloating, possibly through the reduction of calcium influx. In clinical studies, Peppermint has been shown to reduce bloating and flatulence.