Case Study: BURST Oral Care achieves increased subscriber conversions and 300% Facebook ROAS with Retention Science's Cortex

How BURST helps customers pick the best oral care option

BURST, founded in 2017, sells a dentist-recommended sonic toothbrush via an affordable direct-to-consumer subscription model. After scaling acquisition with agency help, the brand faced a retention challenge: many new customers hesitated between subscribing to the brush or making one-time purchases of accessories, and BURST lacked the time to test and personalize follow-up communications at scale.

Retention Science’s Cortex used AI to lead-score new buyers, personalize lifecycle and abandon emails, and segment customers by predicted intent—showing discounts only to low-intent shoppers while withholding promotions from high-intent, best-customer lookalikes. Automated A/B testing optimized content and send timing, and predictive analytics nudged one-time buyers toward subscription; the program delivered a 26% conversion for new low-intent customers, 10% conversion on subscriber abandon campaigns, and a 300% return on Facebook ad spend.

BURST ORAL CARE

Ashley Thompson

Marketing Director