Abstract: Dental cream in contact with a polyolefin resin surface of a package such as a laminate tube, a mechanical dispenser or a flexible sachet. The dental cream contains as at least the major portion of which is a dentally acceptable water-insoluble polishing material alpha-alumina trihydrate, a liquid vehicle and a gelling agent and an agent to reduce pH containing phosphate ion. The liquid vehicle contains water, glycerine and sorbitol and, as an additive to prevent syneresis due to contact between the dental cream and the polyolefin resin, polyethylene glycol of average molecular weight or about 200-1000.