Case Study: Perfect Bar achieves 18% higher AOV, 42% faster repeat purchases and 238% higher email open rates with Retention Science

How Perfect Bar helps customers pick their perfect flavor

Perfect Bar, the original refrigerated protein bar brand built on whole-food, family-first values, saw a rapid increase in acquisition traffic after partnering with jetfuel.agency. With that growth came the challenge of retaining new customers at scale — raising engagement and lifetime value, personalizing email content with behavioral or AI-driven decisions, and improving open and click rates through scalable A/B testing.

Retention Science’s AI platform, Cortex, delivered automated, self-learning email lifecycle campaigns that predicted each customer’s optimal engagement time, inserted personalized product recommendations, and used predictive analytics to find new purchase opportunities. Cortex’s bandit A/B testing removed manual work and optimized subject lines and templates, producing measurable gains: 18% higher average order value, a 42% faster repeat purchase cadence, and a 238% increase in open rates.

Perfect Bar

Jeff Perkel

Director of E-Commerce & Digital