Tennant Products is a science-backed supplement brand founded by Dr. Jerry Tennant — a Harvard-trained ophthalmologist with 60+ years of medical expertise. MerchantUp serves as their dedicated Shopify developer, responsible for all technical work on their store: redesigns, landing pages, custom Liquid sections, and ongoing development.
Visit tennantproducts.com ↗Tennant Products was founded on a simple but demanding premise: supplements that are actually bioavailable, properly methylated, and formulated to work at the cellular level — not just ingredients chosen for marketing appeal. Their tagline says it clearly: Ingredients Matter.
Founded by Dr. Jerry Tennant — a Harvard-trained ophthalmologist with over six decades of clinical experience — the brand brings genuine scientific credibility to an industry notorious for overpromising and underdelivering. Their products are 100% USA-made, free of GMOs and artificial fillers, and backed by traceable ingredient sourcing.
It's a brand that takes its science seriously. Their Shopify store needed to match that standard at every level — technically sound, fast, and built to convert a highly informed, discerning buyer.
Rather than a one-off project, Tennant Products needed a consistent, senior-level Shopify developer they could rely on for all ongoing technical work. As their store and product range grew — adding new formulations, educational content, landing pages, and promotional campaigns — they needed someone who understood the platform deeply and could move quickly without hand-holding.
The engagement covers everything technical on the Shopify side: structural redesign work, custom Liquid section development, campaign landing pages, performance improvements, and any custom coding requirement that comes up month to month. When Tennant Products needs something built, it gets built — correctly, on time, and without needing to explain Shopify basics to someone learning on the job.
As the retained Shopify developer, the scope spans every technical layer of the store — from theme structure to individual landing pages built for specific campaigns or products.
A one-time project delivers a store. A retained developer delivers a store that keeps getting better. For a brand like Tennant Products — where product releases, educational campaigns, and seasonal promotions are constant — having the same developer on call every month means no onboarding time lost, no context rebuilt from scratch, and no compromises in code quality because someone is learning the codebase on your bill.
The retainer model means we understand Tennant Products' Shopify setup deeply: how the theme is structured, which sections are custom, where the business logic lives, and what their audience expects from the store experience. That institutional knowledge compounds over time — each month's work builds on the last.
This is the kind of relationship that serious brands choose when they outgrow the freelancer-per-project model and need Shopify development to work like an internal resource — responsive, reliable, and already up to speed.
Additional project case studies are published with client permission. More coming soon.
Whether it's a one-time project or an ongoing retainer, we work as your Shopify team — senior-level development, direct communication, no account managers.