Menthol in Crystal Form is an organic compound made synthetically or obtained from peppermint or other mint oils. Menthol is a waxy, crystalline substance, which is solid at room temperature and melts at slightly above temperature. Menthol is clear or white in colour and offered in crystal form. Menthol in Crystal Form has local anaesthetic as well as counters irritant qualities and is widely used to relieve minor throat irritation.