---
title: "Diarrhoea — £1.1M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/diarrhoea"
last_updated: "2026-07-31T18:27:17.349Z"
locale: en
meta:
description: "Niche score 52/100 · £1.1M/yr market · 733K searches/yr. Pricing outside the sweet spot ($6.24 avg) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · £1.1M/yr market · 733K searches/yr. Pricing outside the sweet spot ($6.24 avg) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Diarrhoea — £1.1M/yr Amazon UK Niche (2026) - Flapen"
---
# **diarrhoea**
**Worth a look**
Shows searches that convert (24.3% search→purchase), but pricing outside the sweet spot ($6.24 avg) keeps it on the watch list.
Market size 80Growth 26Conversion 100Competition 32Returns 100Price range 37Avg price 17Brand share 32Review moat 64Quality gap 21
**Conversion**
**Incredible****24.3%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Great****£1.1M**
£1.1M/yr · 733K searches
**Review moat**
**Good****951.15**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****£2.44–£22.51**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+0.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****£6.24**
avg listing price — sweet spot $15–$100
According to Flapen's Amazon United Kingdom niche tracking, diarrhoea is a £1.1M/yr Amazon United Kingdom market (733K searches/yr). The top 5 brands hold 86% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **diarrhoea market data**
- **Units sold / yr**
- **150K–200K**
- avg 6,000–8,000/product
- **Revenue / yr**
- **£936K–£1.2M**
- units × avg price
- **Conversion rate**
- **24.3%**
- **Avg BSR**
- **#15**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **80%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **80 months**
- **Avg seller age**
- **171 days**
## **Competition & brand share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**73**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**11%**
- Imodium60% - Loritax9% - BECKYS CHOICE7% - Galpharm7% - Generic4% - TDY Store4% - Open — no brand owns it (6 brands, 11%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +0.9% search growth over the last 90 days.
20K15KPrime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/diarrhoea/trend)
## **Top diarrhoea search terms**
- **imodium**343K/yr+1.8%21.7% conv. - **diarrhea tablets for adults**63K/yr+16.6%20.4% conv. - **diarrhea tablets**80K/yr+9.8%18.2% conv. - **imodium tablets**56K/yr-14.1%19.8% conv. - **immodium**51K/yr-9.4%24.8% conv. - **anti diarrhea tablets**28K/yr+14.0%18.4% conv. - **diarrhoea relief**16K/yr+81.9%13.1% conv. - **diarrhea relief**24K/yr-30.7%13.2% conv. - **diarrhoea tablets**13K/yr+12.5%16.3% conv. - **diarrhea**10K/yr+4.5%13.1% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/diarrhoea/search-terms)
## **Top diarrhoea products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%£111K20%£222K30%£333K40%£444K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Imodium Instants (1 x 6 Tablets) Loperamide Dissolving Tablets for On-The-Go Diarrhoea Relief Treats Short-Term and IBS Diarrhoea Helps Restore Your Natural Rhythm for Adults and Children Aged 12+**Imodium**£3.24**4.7★3,783 rev](https://www.amazon.co.uk/dp/B000K2RD30) [2**Imodium Capsules Original Relief from Diarrhoea (6 Capsules) Helps Restore Gut to Natural Rhythm with Loperamide Hydrochloride Fast-Acting Diarrhoea Relief in 1 Hour with Just 1 Dose**Imodium**£2.45**4.7★710 rev](https://www.amazon.co.uk/dp/B000JK8OA4) [3**Imodium Dual Action Diarrhoea Relief (6 Tablets) Helps Restore Gut to Natural Rhythm with Loperamide Hydrochloride & Simeticone Diarrhoea Tablets for Cramping Bloating and Wind**Imodium**£3.77**4.6★2,149 rev](https://www.amazon.co.uk/dp/B0B3MT1L4N) [4**48 Diarrhoea Relief 2mg Capsules Loperamide Hydrochloride Tablets (8x6)**Loritax**£5.52**4.6★5,210 rev](https://www.amazon.co.uk/dp/B07PLLGCM2) [5**60 Anti Diarrhea Loperamide 2mg Capsules (10 Packs - 6 Capsules Each) Fast-Acting Anti Loose Motion Instant Diarrhoea Relief Tablets**BECKYS CHOICE**£8.18**4.6★281 rev](https://www.amazon.co.uk/dp/B0DTP54RNK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Diarrhoea Relief (6 Pack) 36 Loperamide Hydrochloride GSL TDY Bundle Including Diarrhoea Causes & Relief Guides + Stool Chart & Recording Chart - Packaging May Vary**TDY Store**£7.44**445 rev2mo ago](https://www.amazon.co.uk/dp/B0D2NTWJTW) [**60 Anti Diarrhoea Tablets Anti Loose Motion Instant Diarrhea Capsules - Helps Restore Gut to Natural Rhythm by HydraSole - Packaging May Vary**HydraSole**£7.89**22 rev6mo ago](https://www.amazon.co.uk/dp/B0GDW4Y7YY) [**36 Diarrhoea Relief Instants 2mg Orodispersible Tablets (6 Packs) - Melts in The Mouth**BECKYS CHOICE**£8.27**136 rev11mo ago](https://www.amazon.co.uk/dp/B0FL4P9TLL) [**Diarrhoea Relief 2mg 6 Capsules Loperamide Hydrochloride Tablets - Pack of 5 Fast-Acting Anti Loose Motion Instant Diarrhoea**Generic**£3.86**337 rev11mo ago](https://www.amazon.co.uk/dp/B0FKQBCQHJ) [**72 Diarrhoea Relief Capsules (12 Boxes) TDY Bundle Including Diarrhoea Causes & Relielf Guides + Stool Chart & Recording Chart - 12 x 6 - Anti Diarrhoea Tablets**TDY Store**£8.90**116 rev1y ago](https://www.amazon.co.uk/dp/B0FHWFT2F7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Crescent Pharma Loperamide Hydrochloride 2mg Tablets Diarrhoea Relief Tablets Oral Use 6 Tablets**NECALON**£2.44**4.6★**▲ 142%**](https://www.amazon.co.uk/dp/B07CQWDW52) [**60 Anti Diarrhoea Tablets Anti Loose Motion Instant Diarrhea Capsules - Helps Restore Gut to Natural Rhythm by HydraSole - Packaging May Vary**HydraSole**£7.89**4.6★**▲ 89%**](https://www.amazon.co.uk/dp/B0GDW4Y7YY) [**72 Diarrhoea Relief Capsules (12 Boxes) TDY Bundle Including Diarrhoea Causes & Relielf Guides + Stool Chart & Recording Chart - 12 x 6 - Anti Diarrhoea Tablets**TDY Store**£8.90**4.8★**▲ 51%**](https://www.amazon.co.uk/dp/B0FHWFT2F7) [**Imodium Capsules Original Relief from Diarrhoea (6 Capsules) Helps Restore Gut to Natural Rhythm with Loperamide Hydrochloride Fast-Acting Diarrhoea Relief in 1 Hour with Just 1 Dose**Imodium**£2.45**4.7★**▲ 48%**](https://www.amazon.co.uk/dp/B000JK8OA4) [**One Step Diarrhoea Relief 2mg Capsules Loperamide Hydrochloride 36 Capsules - 6 Packs**One Step**£4.23**4.6★**▲ 47%**](https://www.amazon.co.uk/dp/B09NH1YGFZ)
**~~View all trending →~~**
## **What buyers say about diarrhoea**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**24%
*“Excellent value for money”*
**Advertised Vs Actual Product**20%
*“As advertised”*
**Efficiency**16%
*“Works well”*
**Quality-Overall**14%
*“Great product, As described”*
**Ease Of Use**5%
*“Easy to use”*
**Dosage**3%
*“The pills are very good”*
**Acid Regulator/Stomach Ache Relief**2%
*“A life saver for tummy issues”*
**Ease Of Chewing/Swallowing**2%
*“ease of swallow many thanks pete”*
**Functionality-Overall**1%
*“They do the job”*
**Side Effects**1%
*“No side effects”*
### **What buyers complain about **
**Value For Money**22%
*“Waste of money”*
**Functionality-Overall**15%
*“Does not work or help”*
**Ease Of Use**11%
*“no use”*
**Dosage**9%
*“Dosage is a matter of trial and error as we are all individuals and probably have different reasons fir considering this product”*
**Taste-Overall**6%
*“Tastes awful”*
**Advertised Vs Actual Product**4%
*“Im fairly certain if I had it analyzed it would not be what it claims to be”*
**Blood Sugar Level**4%
*“DO NOT USE IF YOU ARE GLUCOSE INTOLERANT”*
**Flatness**4%
*“Not delivered to flat's”*
**Regulates Digestion**2%
*“wrongly used cause constipation”*
**Adhesion/Stickiness**2%
*“tablets stick to roof of mouth”*
## **Common questions**
- **Is diarrhoea profitable to sell on Amazon United Kingdom?**
- The niche generates £1.1M/yr across 20 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +0.9%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the diarrhoea niche?**
- 12 brands and 73 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in diarrhoea?**
- Top complaints mined from reviews: Value For Money, Functionality-Overall, Ease Of Use. The return rate is 0.0%.
- **When does demand for diarrhoea peak?**
- Demand is steady year-round — the busiest month runs 1.8× the quietest.
- **What does it cost to enter the diarrhoea niche?**
- Listings span £2.44–£22.51; the average listing price is £6.24 (sweet spot $15–$100). The average incumbent carries 951 reviews — the moat a new listing must climb.
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