The hidden cost of retail media waste in pharma CHC (and how to remedy it)

How to identify and eliminate 20 to 30% of inefficient advertising spend on Amazon.co.uk, Boots, and major e-pharmacy platforms in the UK.

Introduction: retail media, growth engine or financial drain?

Retail media has become the fastest-growing advertising channel in Europe. In the UK, retail media spending now exceeds £1.0 billion annually, driven by platforms like Amazon Advertising UK, Criteo Commerce Media, and online pharmacy networks. For Consumer Healthcare (CHC) brands, this channel offers an enticing promise: reaching consumers at the precise moment of purchase, directly on Amazon.co.uk, Boots, Superdrug, or LloydsPharmacy.

But behind this promise lies an uncomfortable reality. Industry data shows that on average, 20 to 30% of retail media budgets in CPG are spent inefficiently. For a CHC brand investing £500,000 per year in retail media in the UK, this potentially represents £100,000 to £150,000 of pure waste—every year.

This waste is not inevitable. It results from identifiable, measurable, and correctable causes. This article dissects the main sources of wasted advertising spend in the pharma e-commerce sector in the UK, explains why the relationship between product content and advertising is crucial, and provides an actionable checklist to audit and optimise your retail media budget.

The scale of the problem: compelling figures