Police are investigating a theft from a pharmacy in Richmond last month, Victoria Police say.
It is believed two men entered the Swan Street store on Thursday 13 July, selected 11 bottles of probiotics and left without paying for them.
Both men are described as Caucasian in appearance, approximately 30 years old, with thin builds, and wearing dark clothing and beanies.
Investigators have released images of the men in the hope someone may recognise them.
Anyone with information is urged to contact Crime Stoppers.