Ma'anar ƙamus na "maganin kyau" tsari ne na tsari ko magani waɗanda aka tsara don haɓaka ko inganta yanayin jikin mutum, musamman ta fuskar fata, gashi, da farce. Maganin kyau na iya haɗawa da abubuwa kamar gyaran fuska, yankan hannu, gyaran kafa, gyaran gashi, canza launin gashi, yin kakin zuma, da sauran hanyoyin kwaskwarima. Manufar maganin kyau shine don inganta yanayin kamanni da yanayin kamannin mutum gabaɗaya, haɓaka kwarin gwiwar kansa, da samar da walwala da walwala.