'Clinician Recommended' badge on product page: no change
Test run byDave DiederenSyntra Labs
Commentary byLiftArchiveOur analysis, not theirsAdding a "Clinician Recommended" badge to the product page had no effect in Dave Diederen's test. Conversion rate, revenue per visitor and average order value were all flat across 76,548 visitors. They say it came out flat in more than one test.
- Conversion rate: flat at 2.29% for both versions.
- Revenue per visitor: flat at $0.99 for both versions.
- Average order value: flat ($43.33 vs $43.32).
- Scale: 76,548 visitors and 1,756 orders from Aug 4 to Aug 14, 2026. Enough traffic that a meaningful effect would likely have shown up.
The change
The variant adds a Clinician Recommended badge; exact placement was not shown.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The product page without an authority badge.
Variant
The same page with a "Clinician Recommended" badge added. The post does not show the badge design or placement.
Why it likely came out this way
Our reading of the result, not the practitioner's claim.
- a badge on its own makes a claim without proof. It doesn't say who the clinicians are or why they recommend the product.
- these badges are now common, so shoppers may skim past them.
- Dave Diederen suggests authority may still build brand trust over time, which a ten-day test can't measure.
Caveats: Badge design, placement and the product category were not shown. A ten-day test can't measure longer-term brand effects.
Who ran it
Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.
View the original post on X
How to run this test on your store
- Hypothesis
- If we back a clinician endorsement with proof, such as named experts and what they endorse, then more visitors will buy because the claim becomes credible rather than decorative.
- Primary metric
- Conversion rate
- Guardrails
- Revenue per visitor
- Average order value
- Who should test it
- Health and wellness brands with real clinician endorsements they can name and explain. A plain badge with no proof behind it probably won't move the numbers, as this test shows.
Questions
Do "doctor approved" or "clinician recommended" badges increase conversion?
Not in this test. Across 76,548 visitors, conversion, revenue per visitor and AOV were all flat.
How can I make expert endorsements more convincing?
Dave Diederen suggests showing proof: who the clinicians are, why they recommend it and what evidence the shopper can see. This test only covered the plain badge.
Should I remove a trust badge if the test is flat?
Not necessarily. They would keep it for longer-term brand trust, but wouldn't expect a quick conversion lift from it.
Similar tests
@oliverkenyon@DaveDiederen@DaveDiederen
@CROguy_@DaveDiederen@DaveDiederen