Case Study: Thirdlove achieves 15x SMS ROI with Klaviyo

Thirdlove drives 15x SMS ROI after consolidating email and SMS in Klaviyo

Thirdlove, a women’s intimates brand, needed a more sustainable CRM approach as its email and SMS systems were split across platforms and its email tools lacked the dynamic personalization and flexibility the team wanted. The company turned to Klaviyo B2C CRM and Klaviyo Customer Hub to unify channels, improve segmentation, and simplify campaign building for a small team.

With Klaviyo, Thirdlove consolidated email and SMS into one omnichannel platform, used channel affinity and personalized automations, and activated quiz and loyalty data across campaigns and its site experience. The results included 15x SMS ROI in H1 2025, more than 40K self-service interactions completed in Customer Hub, and over $200K in revenue from Customer Hub in 2025.

Thirdlove

Leanne Chan

Senior Director of Growth and Retention