All case studies
CROShopify · Supplements4 weeks

Supplements: subscription opt-in +220%

How UK supplements brand moved from "sub option buried, no visible benefit" to a measurable +220% sub opt-in lift, delivered across 4 weeks by BeingEcom's cro team.

+220%
Sub opt-in
+220%
Sub
+62%
LTV
+18%
AOV

Executive summary

UK supplements brand is a supplements brand operating on Shopify in the UK. They engaged BeingEcom to solve a specific problem - sub option buried, no visible benefit - and to build an operating model that would keep compounding after the engagement ended. Across 4 weeks, we shipped a full cro programme (3 core workstreams), instrumented measurement against a trailing 60-day baseline, and delivered +220% on sub opt-in alongside supporting lifts in sub, ltv, aov.

Client
UK supplements brand
Industry
Shopify · Supplements
Engagement
4 weeks
Before - the situation

Where UK supplements brand was stuck

Sub option buried, no visible benefit. On a Shopify store operating in supplements, that pattern shows up as a plateau: paid spend rising, blended margin falling, and the operator making decisions on gut feel because no scorecard existed for cro.

Site-wide CR
1.2%
Cart abandonment
71%
Mobile CR delta
-23% vs desktop
Test cadence
No structured programme

The four blockers we found

  • Sub option buried, no visible benefit.
  • Supplements competitors were compounding advantage on the exact PDP patterns UK supplements brand was ignoring.
  • No repeatable cro scorecard - decisions were made on gut feel rather than a weekly conversion-per-visitor readout.
  • Internal bandwidth was spent on execution inside Shopify, leaving no room for strategy, measurement or the 4 weeks sprint the numbers actually needed.
Methodology

The 5-phase cro system we ran for UK supplements brand

Every BeingEcom cro engagement follows the same five phases so accountability, measurement and handover stay clean. Below is how each phase mapped to UK supplements brand's 4 weeks sprint.

1. Discover

Two-week diagnostic of UK supplements brand's Shopify storefront, supplements category dynamics, and the exact pain: sub option buried, no visible benefit. We shadowed the operator, pulled 60 days of baseline data and mapped every gap between the current state and the +220% outcome.

2. Diagnose

Root-cause analysis across session replays, funnel drop-offs, offer strength and mobile hierarchy. Findings were prioritised by revenue impact so the sprint budget landed on the friction removal and offer design that would move sub opt-in fastest.

3. Design

We shipped the plan as an execution brief: Sub as default selection; Save % framing instead of pound amount; Cancel-anytime trust line under CTA. Every line item was tied to a hypothesis, a target metric and an owner. The brief was reviewed with UK supplements brand before a single change went live.

4. Deploy

Build phase covered high-leverage split tests shipped in sprint blocks, wins rolled to 100% traffic. Ship cadence was weekly, with a Loom walkthrough every Friday so UK supplements brand always knew what changed and why. Rollbacks were pre-scripted for any change that touched revenue-critical surfaces.

5. Measure

A single cro scorecard reconciled Shopify revenue, test lift and holdout deltas, and email revenue side-by-side. The +220% sub opt-in figure is measured against the trailing 60 days pre-engagement, reported in the same units UK supplements brand uses for board meetings.

Timeline

Week-by-week plan across 4 weeks

Week 1
Kickoff, baseline data pull, UK supplements brand operator interviews and access to Shopify.
Week 2
Diagnostic complete. Prioritised execution brief signed off.
Week 3-3
Ship sub as default selection and save % framing instead of pound amount in parallel.
Week 4-4
Measurement, cancel-anytime trust line under cta and handover of the cro scorecard.
Stack we ran on

Tools, platforms and ownership

The stack was designed so UK supplements brand's internal team could keep operating it post-handover. No proprietary black boxes.

Storefront

Shopify (optimised in place)

Analytics

GA4 with Meta CAPI and server-side events

Email & SMS

Klaviyo flows and segmented broadcasts

Qualitative

Hotjar session replays, on-site polls and heatmaps

Split testing

VWO / Convert with holdout validation, PostHog for event analytics

Funnel intelligence

Fullstory for step-level drop-off analysis

How we measured

Measurement framework

Every uplift is measured against the trailing 60 days before kickoff - not the same month last year. Revenue reconciled in Shopify; spend reconciled in Meta and Google Ads; the two joined in a single weekly scorecard we shared with UK supplements brand's founder on Fridays.

+220%
Headline metric
Sub opt-in
+220%
Sub
vs 60-day baseline
+62%
LTV
vs 60-day baseline
+18%
AOV
vs 60-day baseline

Methodology: figures reported from client-owned Shopify, GA4 and Klaviyo dashboards across the full 4 weeks engagement. Baseline is the 60-day period immediately prior to kickoff. Individual results vary by category, margin and starting position - anonymised source data available on request under NDA.

Outcomes explained

What each number actually means

+220%
Sub

+220% in list or subscription growth. On ecommerce margins, owned channels typically pay back inside 90 days.

+62%
LTV

Lifetime value at +62% means the retention layer (email, subscription, winback) is now doing measurable work - not just decorating the P&L.

+18%
AOV

Average order value at +18%, driven by bundle and upsell logic that sits inside the Shopify theme rather than a third-party app.

Headline lift: +220% on Sub opt-in

Result after 4 weeks, measured against the trailing 60-day baseline pre-engagement.

Final outcome

A repeatable cro operating model

UK supplements brand now runs the same cro scorecard weekly, ships the same execution cadence, and forecasts revenue from a system that behaves the same way whether the founder is in the office or not. The +220% sub opt-in number is the headline; the durable advantage is the operating model behind it.

"Making 'subscribe' the default did more than any copy change we tried."

Frequently asked

Questions about the UK supplements brand engagement

How did the CRO programme deliver +220% sub opt-in for UK supplements brand?

We ran a diagnostic on the supplements funnel, isolated the highest-leverage friction, then shipped sub as default selection alongside save % framing instead of pound amount. Wins were validated with holdout groups before rolling to 100% of traffic.

What was the timeline from kickoff to the +220% sub opt-in outcome?

The engagement ran 4 weeks. Discovery and diagnosis took the first 1-2 weeks, build and deploy dominated the middle, and the last third was measurement, iteration and handover. UK supplements brand saw early signal inside the first 30-45 days, with compounding gains through the full window.

How was the sub opt-in number of +220% measured?

We used Shopify native reporting for revenue, GA4 for session and cohort behaviour, and Meta / Google Ads managers for spend attribution - reconciled monthly in a single scorecard. All uplift is measured against the trailing 60-day baseline before we started, not the same period last year, to strip out seasonality.

What was actually broken at UK supplements brand before we started?

Sub option buried, no visible benefit. The knock-on effects were unpredictable weekly numbers and marketing spend that couldn't be tied to profit - the classic pattern for supplements brands stuck between £30k and £150k/month.

Which tools and platforms did BeingEcom use on this project?

Core stack: Shopify for the storefront, GA4 with Meta CAPI for tracking, Klaviyo for email flows, and category-specific tooling for CRO - Hotjar for session replays, VWO or Convert for split-testing, Fullstory for funnel diagnostics and PostHog for event-level analytics. Everything was configured so the UK supplements brand team could keep operating it post-engagement.

Can a similar supplements brand expect the same +220% lift?

Uplift depends on starting baseline, margin and category maturity. UK supplements brand started from a specific pain point (Sub option buried, no visible benefit), so the delta looks large. A brand already running a clean cro programme would expect smaller absolute gains but the same directional wins. We share honest range estimates during the audit.

Were the wins durable after the engagement ended?

Yes. Every playbook was documented, every dashboard was owned by UK supplements brand's internal team, and standard operating procedures were left in place for creative production, cro reporting and iteration. The compounding side of CRO - tested winners in the theme - continued after handover.

What is the biggest lesson from the UK supplements brand project?

"Making 'subscribe' the default did more than any copy change we tried." That principle now shapes how we scope every new supplements engagement.

How do I get a similar plan for my supplements store?

Book a free ecommerce growth audit at /audit. We benchmark your funnel against the UK supplements brand case and 30+ other UK Shopify and WooCommerce engagements, then send back a written 30/60/90 plan - no pitch deck, no lock-in.

Related wins

More CRO results in Supplements

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