Case Study: Seraphine uncovers Pinterest’s true value with Fospha

How Seraphine Unlocked Efficient Growth with Pinterest Ads

Seraphine Maternity, a premium maternity wear brand operating in the UK, US, and Germany, partnered with Fospha after noticing a disconnect between strong Pinterest engagement and weak last-click conversion data. The team suspected their upper-funnel and paid social activity was being undervalued, especially given their customers’ research-driven purchase journey.

Using Fospha’s Measurement Algorithm and multi-touch attribution, Seraphine uncovered that last-click reporting captured just 3% of Pinterest-driven conversions, revealing a 97% blind spot. With this insight, Seraphine scaled Pinterest investment 7.5x year-over-year, driving 13x channel revenue in the UK, along with 96% higher ROAS and 50% better CPA.

Seraphine

Henry Linney

Performance Marketing Director