Around 1.7 million customers shop at Rossmann every day, according to disclosed business figures. Rossmann insiders take a look behind the scenes of the drugstore: What tricks are behind the product promises? And which day of the week is most worthwhile for shopping? ZDF broadcast dismantles three Rossmann products: shower gel, diapers, travel hair dryer.

ZDF report: Prices for men's and women's products have generally been the same since a consumer protection initiative in 2019, but the sizes in particular are being tricked.