Problem

A leading DTC women's healthcare company had built its paid media strategy around Facebook, drawn by its reach. But despite heavy investment, customer acquisition costs were climbing and ROI was under pressure. The team needed an objective view of what was actually driving conversions, not just impressions.

Solution

The company deployed Darwin for an always-on analysis of conversion attribution across all advertising touchpoints, identifying which channels were delivering real ROI and where budget should be reallocated.

Insight

• YouTube was the hidden performer — analysis revealed YouTube as significantly more cost-effective than Facebook for engaging and acquiring new customers, a finding that ran counter to the team's assumptions

• Reach and frequency aren't enough — the data reframed the optimization question from "how many people did we reach?" to "which channels drive qualified conversions at the lowest cost?"

• Format and mobile optimization mattered — shifting to YouTube enabled the team to leverage diverse ad formats and mobile-first video, better suited to how their audience actually engaged

Results

• 20% increase in ad conversion rates

• 15% reduction in cost per conversion

• More qualified leads and higher engagement rates

• Increased organic traffic to website as brand visibility on YouTube grew

• Reduced overall dependency on paid advertising over time