Case Study: Underoutfit achieves $3.3M incremental revenue growth with Fospha

How Underoutfit Scaled YouTube and TikTok to Unlock Millions in Revenue Growth

Underoutfit, a fast-growing D2C shapewear and undergarments brand, was struggling to scale marketing efficiently as Meta reached its growth limits. Before working with Fospha, the team relied on Triple Whale and mostly conversion-focused, last-click measurement, which made it difficult to prove the value of upper-funnel channels like YouTube and TikTok.

Using Fospha’s full-funnel measurement platform, Underoutfit identified that YouTube ROAS was 5X higher and TikTok ROAS 9X higher than last-click attribution suggested. With Fospha, they scaled YouTube spend by 315% and TikTok by 93%, cut blended CAC by 15%, increased Meta spend by 25% while reducing Meta CAC by 18%, and drove $3.3 million in incremental revenue in one month.

Underoutfit