Case Study: DASHIN SHOP achieves 25% lower cost per purchase and 38% higher return on ad spend with Instagram

DASHIN SHOP - Customer Case Study

DASHIN SHOP is a South Korean health‑food brand (founded in 2016) that creates diet‑friendly versions of everyday foods. To boost campaign performance and acquire more new customers without increasing its ad budget, the team wanted to learn which targeting strategy would most effectively reach people likely to make a purchase.

They ran a split test using two Custom Audiences—people who engaged with their Instagram Shop/profile and recent Instagram video ads with product tags, and website visitors—and compared lookalike audiences built from each audience alone versus both together. The combined lookalike targeting performed best (audience overlap <1%), delivering 25% lower cost per purchase, 38% higher return on ad spend, and a 33% higher purchase conversion rate.

DASHIN SHOP

Hong-ki Kang

Performance Marketing Manager