The liquid peppermint soap is important because the soap acts as an insecticide while the peppermint, in addition to smelling nice, acts as a repellant. The soap will also help the other ingredients ...

This is widely used as a flavouring for foods, drinks and dental products such as toothpaste and mouth-washes. Peppermint also aids digestion. Menthol also used as an antiseptic and insecticide.