Supplement brands

A Shopify CRO agency for supplement brands. Built around the offer and the subscription.

We research, design, build and test the pages after the click for supplement and wellness stores, on the CRO & Scale Plan. Every test is judged on revenue per visitor.

CRO for supplement brands, judged on revenue per visitor and subscription take rate.

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Client results

Supplement and wellness results, from the CRO & Scale Plan.

+64%Kiko Vitals
Subscription sales on our CRO & Scale Plan, with +29% total sales. Store-wide figures, so they include Kiko's own marketing too.
4.5%Revive MD
Peak conversion rate, from below 2%, on our CRO & Scale Plan.
97%Avantera
Of orders on subscription, up from 90%, after one offer test.
+9%Natrava
Subscription revenue per visitor from one cart test on our CRO & Scale Plan.

The problem

The product page is doing too much work for cold traffic.

Supplement buyers often arrive unsure. If the education, the offer and the subscription are weak, paid traffic pays twice. We build and test that journey, then measure it properly.

How we work

Built for what happens after the click.

Most brands don't need more traffic. They need the traffic they already pay for to convert.

After the click
Once the ad is working, the levers left are after the click: the presell, the product page, the offer and the checkout.
People-managed CRO
One team. No handovers. The people who plan the work build it, on the CRO & Scale Plan.
Driven by the data
Research is stored in the brand's CRO Brain. Builds are supported by PMD Cortex AI and checked by an engineer.
A programme, not one lucky win
Winners roll out sitewide, from product page to checkout. The result goes back into research, so the next test starts smarter.

How we work

From research to a live test, then back into the CRO Brain.

A strategist, designer, Shopify developer and QA work as one pod. Engineers stay responsible for what goes live.

01
Research the customer
Reviews, surveys, support tickets and winning ads are fed into the brand's CRO Brain, so we start where your customer already is.
02
Plan the funnel
The presell, product page, offer, cart, checkout and subscription are planned as one system, not as separate pages.
03
Design, build and test
Pages are built in your theme with PMD Cortex AI, then checked by an engineer. Tests run in AB Genius, with one hypothesis and one metric.
04
Measure and learn
Every test is judged on revenue per visitor, and the result goes back into the CRO Brain.
05
Roll out what wins
Winners go sitewide, and the next test starts from what the last one taught us.
PMD Cortex AI · CRO Brain

Shopify A/B testing

Shopify A/B testing, run inside your theme.

We built AB Genius so Shopify A/B tests can run in your theme and be judged on revenue per visitor, not conversion rate alone. It has a redesigned dashboard, a four-step guided setup, and price testing at the real checkout price, so customers pay the price being tested. Checkout block testing, including upsells, images, text, trust badges and callouts, sits on the Plus CRO plan.

Here is one example from AB Genius, on a Shopify store, with the brand name removed. A 50/50 cart drawer test ran in autumn 2026. Revenue per visitor rose 16%, from $2.01 to $2.33. Conversion rate rose 9%, from 1.49% to 1.63%, and average order value rose 5%.

The AB Genius read called this directional, not a definitive verdict, and recommended shipping the variant and measuring it again. This is an AB Genius test example. It is not a PM Digital client case study.

Starting free. Pro CRO from $49 a month.

See AB Genius Open in the Shopify App Store Book a product demo

AB Genius experiment report for a cart drawer test, with the store name removed. Average order value up 5%, revenue per session up 16%, conversion up 9%, with a ship and re-measure verdict. — The AB Genius report cover, with the store name removed.

AB Genius results comparing control and variant on conversion rate, revenue per visitor and average order value. — The measured lifts, with reported lift ranges. Monthly figures on the cards are estimates from AB Genius, not a forecast we bank.

Case studies

Results from the CRO & Scale Plan.

These figures are from our CRO & Scale Plan. They are not AB Genius product results.

Kiko Vitals+64% subscription sales and +29% total salesStore-wide Shopify sales on our CRO & Scale Plan, against the four months before. They include Kiko's own marketing too.Read the case study Revive MDConversion rate from below 2% to a 4.5% peakWe blocked bot traffic, rebuilt the theme, and tested offers and subscriptions on our CRO & Scale Plan.Read the case study

Avantera97% of orders on subscription, up from 90%One offer test on our CRO & Scale Plan.Read the case study

8 Sheep Organics$1M+ revenue from one education landing pageAn education page for cold traffic, on our CRO & Scale Plan, live for 14 months and more.Read the case study Gymproluxe+14% conversion rate, from 2.0% to 2.3%Before and after on our CRO & Scale Plan. Revenue per session also rose 17%.Read the case study MyoMaster+45% revenue per visitor from one cart testOne cart redesign test on our CRO & Scale Plan. Average order value also rose 34%.Read the case study

Who we help

Built for supplement and wellness stores on Shopify.

Supplement brands on subscription
Stores that need the offer, the education and the subscription to work together after the click.
Wellness and sports nutrition
Brands sending paid traffic to Shopify and looking for a better return from the pages they already have.

The founder and the team

Paddy McLarnon, founder, and the team that does the work.

Paddy McLarnon founded PM Digital and has been a name in CRO for the last four years. He takes the first call with every brand himself, and stays close to the strategy. He has spoken at DTC Growth Summit in Miami and New York, and hosts the Funnel First podcast.

Meet the agency