
Stop chasing new customers.
Start keeping them.
In today's world the greatest challenge is not only to gain attention but to retain it.
Paid ads are getting more expensive. Competition is tougher. That’s why the fastest-growing ecommerce brands win through retention, not just acquisition. At Retention Lab, we build Klaviyo email systems that bring customers back again and again. Fully connected to your Shopify data. Fully focused on revenue.
Increase repeat purchases + Grow email revenue share + Reduce reliance on paid ads.

How we work with ecommerce brands:
01
Data-first Strategy
We analyse your customers, products, and buying behaviour before making any decisions.
02
Full-funnel Email
From welcome to post-purchase to win-back, every flow is designed with one goal in mind: drive sales. No disconnected emails. Just a clear revenue journey.
03
Continuos Optimization
We test, improve, and iterate every month — no “set and forget”.
What We Do:
Performance Reporting
Track open rates, clicks, revenue, and more. Get clear insights to boost your strategy and ROI.
Smart Segmentation
We use Shopify and Klaviyo data to send the right message to the right customer at the right time. More relevance = higher LTV.
Email Automation Setup
Automate your customer journey with powerful flows like welcome emails, cart recovery, and win-back campaigns.
Professional Email Design
We create responsive, on-brand emails that look great on any device and drive action—perfect for launches, promos, and nurturing.
A/B Testing & Optimization
We test subject lines, content, and timing to maximize performance and continuously improve results.
High-Converting Copy
Persuasive, on-brand email copy that gets opened, read, and clicked—whether for a launch, sale, or retention.
No big offices. No middlemen.
Just lean, efficient email marketing.
Work directly with a specialist, not an admin team.
Perfect for small ecommerce brands looking for affordable email marketing.
Real Results That Speak for Themselves

Across our Shopify clients, our Klaviyo email systems consistently deliver:
54%+ conversion rates in core flows
46% average open rate on campaigns
34% increase in repeat purchases
214% increase in orders over a 2-month period


