---
title: "Cat Diarrhea Treatment — £145K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/pet-supplies/cat-diarrhea-treatment"
last_updated: "2026-07-31T10:30:59.716Z"
locale: en
meta:
description: "Niche score 43/100 · £145K/yr market · 62K searches/yr · £11.34 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · £145K/yr market · 62K searches/yr · £11.34 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Cat Diarrhea Treatment — £145K/yr Amazon UK Niche (2026) - Flapen"
---
# **cat diarrhea treatment**
**Skip it**
A concentrated shelf (top 5 take 77% of clicks) — this niche doesn't clear our bar today.
Market size 31Growth 21Conversion 100Competition 19Returns 100Price range 48Avg price 45Brand share 21Review moat 25Quality gap 40
**Conversion**
**Incredible****20.6%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Price range**
**Okay****£3.61–£25.69**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****£11.34**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£145K**
£145K/yr · 62K searches
**Review moat**
**Bad****4,570.15**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-7.9%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United Kingdom niche tracking, cat diarrhea treatment is a £145K/yr Amazon United Kingdom market (62K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Apr–Jun. Verdict: Skip it — 43/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cat diarrhea treatment market data**
- **Units sold / yr**
- **10K–13K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£113K–£142K**
- units × avg price
- **Conversion rate**
- **20.6%**
- **Avg BSR**
- **#36**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **38%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **68 months**
- **Avg seller age**
- **183 days**
## **Competition & brand share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▼falling
**Sellers**
**34**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**5%**
- Protexin Veterinary51% - Protexin27% - Remedime5% - Duke & Co5% - HUALIJIA4% - Zanipro3% - Open — no brand owns it (2 brands, 5%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.9% search growth over the last 90 days.
2K2KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, Jun · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/uk/pet-supplies/cat-diarrhea-treatment/trend)
## **Top cat diarrhea treatment search terms**
- **cat diarrhea treatment**19K/yr-0.5%11.8% conv. - **protexin for cats**13K/yr-13.5%14.4% conv. - **prokolin for cats**10K/yr-25.2%24.3% conv. - **pro kolin cats**9K/yr-5.1%21.3% conv. - **diarrhea relief for cats**3K/yr+21.3%9.0% conv. - **pro kolin advanced for cats**3K/yr+2.6%26.7% conv. - **pro kolin for cats**2K/yr-13.8%21.8% conv. - **pro-kolin for cats**2K/yr-1.5%20.3% conv. [**All search terms **](https://flapen.com/research/uk/pet-supplies/cat-diarrhea-treatment/search-terms)
## **Top cat diarrhea treatment 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%15%£22K30%£44K45%£65K60%£87K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Pro-Kolin Advanced for Cats Pro-Kolin Advanced for Cats 15ml**Protexin Veterinary**£9.89**4.5★2,542 rev](https://www.amazon.co.uk/dp/B07K1HM75J) [2**Protexin Pro-Kolin Probiotic & Prebiotic Digestive Support Paste for Dogs & Cats Fast-Acting Stool Firming Formula with Kaolin Vet Recommended Ideal for Cats & Small Dogs 15ml Syringe**Protexin**£8.38**4.6★15,379 rev](https://www.amazon.co.uk/dp/B0030UAUS4) [3**Protexin Pro-Kolin Probiotic & Prebiotic Digestive Support Paste for Dogs & Cats Fast-Acting Gut Soothing Formula with Kaolin Helps Firm Stools Vet Recommended 30ml Syringe**Protexin**£11.85**4.6★15,379 rev](https://www.amazon.co.uk/dp/B003Y3XLH4) [4**Remedime Probiotic & Prebiotic Paste to Sooth the Gut Lining and Firm-up Faeces - For Dogs & Cats | 15ml**Remedime**£8.38**4.6★1,162 rev](https://www.amazon.co.uk/dp/B0D7ZNDLTQ) [5**Duke & Co Dog & Cat Diarrhoea Tablets**Duke & Co**£5.19**4.4★986 rev](https://www.amazon.co.uk/dp/B0785HK3YR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Probiotics for Cats 3-in-1 Cat Probiotics with Prebiotic and Enzymes Cat Diarrhea Treatmen Supplement - Support Gut Health Diarrhea & Constipation Relief for All Breed Size Age Bacon Flavor 60ml**HUALIJIA**£7.11**106 rev10mo ago](https://www.amazon.co.uk/dp/B0FRZZW1QB) [**Zanipro Cat Probiotics Paste Diarrhea Treatment Catnip Flavour 15ml**Zanipro**£10.52**157 rev1y ago](https://www.amazon.co.uk/dp/B0DCK95H7N) [**Remedime Probiotic & Prebiotic Paste to Sooth the Gut Lining and Firm-up Faeces - For Dogs & Cats | 15ml**Remedime**£8.38**1,162 rev2y ago](https://www.amazon.co.uk/dp/B0D7ZNDLTQ) [**NBF Lanes | Carobin Pet Forte for Dogs and Cats Supports the Reduction of Acute Intestinal Absorption Disorders Acute Diarrhoea and Recovery**NBF Lanes**£17.00**1,928 rev3y ago](https://www.amazon.co.uk/dp/B09Y9JYYR2) [**Pro-Kolin Advanced for Cats Pro-Kolin Advanced for Cats 15ml**Protexin Veterinary**£9.89**2,542 rev7y ago](https://www.amazon.co.uk/dp/B07K1HM75J)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**NBF Lanes | Carobin Pet Forte for Dogs and Cats Supports the Reduction of Acute Intestinal Absorption Disorders Acute Diarrhoea and Recovery**NBF Lanes**£17.00**4.7★**▲ 165%**](https://www.amazon.co.uk/dp/B09Y9JYYR2) [**Johnsons Vet Diarrhoea Tablets Pack of 12 clear**Johnsons**£3.61**4.4★**▲ 111%**](https://www.amazon.co.uk/dp/B0036HZ6MQ) [**Zanipro Cat Probiotics Paste Diarrhea Treatment Catnip Flavour 15ml**Zanipro**£10.52**3.9★**▲ 56%**](https://www.amazon.co.uk/dp/B0DCK95H7N) [**Probiotics for Cats 3-in-1 Cat Probiotics with Prebiotic and Enzymes Cat Diarrhea Treatmen Supplement - Support Gut Health Diarrhea & Constipation Relief for All Breed Size Age Bacon Flavor 60ml**HUALIJIA**£7.11**4.5★**▲ 38%**](https://www.amazon.co.uk/dp/B0FRZZW1QB) [**Protexin Pro-Kolin Probiotic & Prebiotic Digestive Support Paste for Dogs & Cats Fast-Acting Gut Soothing Formula with Kaolin & Fibre Helps Firm Stools Vet Recommended 60ml Syringe**Protexin**£18.10**4.6★**▲ 18%**](https://www.amazon.co.uk/dp/B007FB3YBO)
**~~View all trending →~~**
## **What buyers say about cat diarrhea treatment**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**18%
*“Excellent price”*
**Quality-Overall**15%
*“After seeing the positive reviews”*
**Advertised Vs Actual Product**11%
*“Does what it says on the box”*
**Pet Friendly**10%
*“Used this for my dogs its good”*
**Ease Of Use**9%
*“Easy to use”*
**Taste-Overall**6%
*“My cats love the taste”*
**Flavor**5%
*“She loves the taste too a big plus”*
**Soothing/Teething**3%
*“Great for dogs tummy upsets”*
**Size-Overall**3%
*“The size is good”*
**Ease Of Chewing/Swallowing**3%
*“Easy to administer in food”*
### **What buyers complain about **
**Value For Money**20%
*“expensive”*
**Indigestion**12%
*“My Sprocker had been suffering from diarrhea for two days”*
**Functionality-Overall**10%
*“Doesn't Work”*
**Color**6%
*“Green/grey colour that is a bit gritty”*
**Taste-Overall**6%
*“Dog seems to hate the taste”*
**Advertised Vs Actual Product**4%
*“only awarding 1 star due Amazon sending something that doesn't match the website pictures as shown”*
**Ingredients-Overall**4%
*“I wish I had checked the full ingredients before using”*
**Stale/Rotten/Spoiled**2%
*“Very old”*
**Defective Material/Parts**2%
*“Tube was broken so not been able to use it”*
**Thickness**2%
*“is a brown thick paste”*
### **Top return reasons **
**Functionality-Overall**52%
**Defective Material/Parts**14%
**Advertised Vs Actual Product**10%
**Size-Overall**5%
**Material Quality**5%
**Moist/Dry**5%
**Ease Of Use**5%
**Hard Feel**2%
**Adhesion/Stickiness**2%
## **Common questions**
- **Is cat diarrhea treatment profitable to sell on Amazon United Kingdom?**
- The niche generates £145K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -7.9%. Flapen's verdict: Skip it (43/100).
- **How competitive is the cat diarrhea treatment niche?**
- 8 brands and 34 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in cat diarrhea treatment?**
- Top complaints mined from reviews: Value For Money, Indigestion, Functionality-Overall. The return rate is 0.1%.
- **When does demand for cat diarrhea treatment peak?**
- Demand peaks in Apr–Jun; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the cat diarrhea treatment niche?**
- Listings span £3.61–£25.69; the average listing price is £11.34 (sweet spot $15–$100). The average incumbent carries 4,570 reviews — the moat a new listing must climb.
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