B
Evidence Grade B
Graded
under review
Safe to Cite
Recent
1%
1% -- whatsapp opt out rate for Napiers the Herbalists (2025)
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
1%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Merx
Primary
Tier B
https://www.hellomerx.com/blog/how-napiers-supercharged-customer-engagement-and-revenue-using-whatsa… ↗
Source Article
How Napiers the Herbalist achieved 22x return (ROAS) with WhatsApp
How Napiers the Herbalist achieved 22x return (ROAS) with WhatsApp
Napiers the Herbalists, is a 165 year old, Edinburgh-based brand specialising in herbal remedies, skincare and natural health products. They offer a diverse range of products, including herbal medicines, food supplements, skincare it…
Original Research
Merx
· Original study ↗
Methodology
Value reported as less than 1%; vendor case study of a single brand's WhatsApp campaign
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Napiers the Herbalists: 1% whatsapp opt out rate. Source: Merx (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/napiers-whatsapp-opt-out-rate
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<blockquote cite="https://lighthousedata.io/data/napiers-whatsapp-opt-out-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>1%</strong> -- whatsapp opt out rate for Napiers the Herbalists<br><small>Source: Merx (2025) · <a href="https://lighthousedata.io/data/napiers-whatsapp-opt-out-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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