---
title: "Probiotics — £2.7M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/probiotics"
last_updated: "2026-07-31T08:56:28.170Z"
locale: en
meta:
description: "Niche score 62/100 · £2.7M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 62/100 · £2.7M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Probiotics — £2.7M/yr Amazon UK Niche (2026) - Flapen"
---
# **probiotics**
**Worth a look**
Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 96Growth 19Conversion 82Competition 54Returns 100Price range 77Avg price 61Brand share 59Review moat 42Quality gap 35
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****£2.7M**
£2.7M/yr · 2.3M searches
**Conversion**
**Great****8.7%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****£4.14–£52.39**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****£13.34**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****69%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,344.88**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-12.1%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, probiotics is a £2.7M/yr Amazon United Kingdom market (2.3M searches/yr). The top 5 brands hold 69% of demand. Verdict: Worth a look — 62/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **probiotics market data**
- **Units sold / yr**
- **200K–250K**
- avg 12,500–15,000/product
- **Revenue / yr**
- **£2.7M–£3.3M**
- units × avg price
- **Conversion rate**
- **8.7%**
- **Avg BSR**
- **#45**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **84%**
- **Out of stock**
- **5.0%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **157 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▲rising
**Sellers**
**102**
**Top-5 brand share**
**69%**
Top 20: 100%
**Top-5 click share**
**53%**
Top 20: 95%
**Open market**
**25%**
- Bio-Kult27% - Optibac Probiotics16% - Free Soul9% - NEW LEAF PRODUCTS9% - Zipvit8% - Wellgard6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -12.1% search growth over the last 90 days.
50K30KSpike '25Prime Day '25Prime Day '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/probiotics/trend)
## **Top probiotics search terms**
- **probiotics**726K/yr-4.4%3.8% conv. - **probiotics for women**331K/yr-31.3%3.0% conv. - **optibac probiotics**188K/yr-12.9%4.7% conv. - **gut health**194K/yr-14.3%1.6% conv. - **probiotics for gut health**210K/yr-4.5%3.9% conv. - **probiotic**109K/yr-3.8%2.8% conv. - **optibac**94K/yr-19.6%4.1% conv. - **gut health supplements**68K/yr-19.9%2.5% conv. - **probiotics for men**42K/yr-10.7%4.5% conv. - **bio kult**52K/yr+2.0%10.8% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/probiotics/search-terms)
## **Top probiotics 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%5%£133K10%£265K15%£398K20%£530K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Bio-Kult Everyday Multi-Strain Formulation Probiotics for Digestive System 60 Capsules (Pack of 1)**Bio-Kult**£10.43**4.5★9,489 rev](https://www.amazon.co.uk/dp/B004SH1PAU) [2**Intimate Flora Probiotics for Women | 20 Billion CFU Fortified with 15 000mg Cranberry Fenugreek & Chlorella | Bio Cultures for Womens Intimate Flora | 60 Capsules | Free Soul**Free Soul**£8.25**4.4★2,235 rev](https://www.amazon.co.uk/dp/B0B5XLMP28) [3**Bio Cultures 80 Billion CFU: 20 Live Strains - Gut Health Supplements for Women & Men - 2 Month Supply - Including Lactobacillus Acidophilus & Casei High Strength Bio Cultures 60 Capsules UK Made**NEW LEAF PRODUCTS**£8.51**4.5★325 rev](https://www.amazon.co.uk/dp/B0FG2TGRZN) [4**Bio-Kult Everyday | 14 Strains | Daily Gut Support for Ages 3+ | Live Bacteria Supplement | 30 Capsules**Bio-Kult**£5.18**4.5★9,489 rev](https://www.amazon.co.uk/dp/B004SGXY00) [5**Zipvit Bio Cultures 6 Billion CFU with Prebiotic Includes Lactobacillus & Bifidobacterium 5 Live Strains 60 Vegetarian Capsules 2 Months Supply**Zipvit**£7.49**4.5★3,635 rev](https://www.amazon.co.uk/dp/B07SS4NBWK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Hybrid Health Pre & Pro-Bio Cultures - 2 Months Supply 100 Billion CFU 20 Live Cultures with Fibres Multi-Strain Daily Pro Bio Cultures for Men & Women Vegan**Hybrid Health**£8.29**0 rev3w ago](https://www.amazon.co.uk/dp/B0H7JL28DK) [**Bio Cultures 80 Billion CFU: 20 Live Strains - Gut Health Supplements for Women & Men - 2 Month Supply - Including Lactobacillus Acidophilus & Casei High Strength Bio Cultures 60 Capsules UK Made**NEW LEAF PRODUCTS**£8.51**325 rev1y ago](https://www.amazon.co.uk/dp/B0FG2TGRZN) [**Daily Pro Bio Cultures | One-a-Day Live Cultures Supplement for Gut Health | 550 Million CFU Lactobacillus Acidophilus | 120 Mini Tablets | Vegan & Gluten-Free | 4-Month Supply | Made in the UK**Oxford Origins**£4.66**435 rev1y ago](https://www.amazon.co.uk/dp/B0DQR1NFT4) [**80 Billion CFU Probiotics - 20 Strains + Prebiotics | Lactobacillus and Bifidobacterium Strains | Probiotics for Women and Men | Made in The UK 2 Month Supply**Macro Greens**£8.28**2,101 rev2y ago](https://www.amazon.co.uk/dp/B0D6454QPH) [**Wellgard Gutstar Bio Cultures for Gut Health 20 Billion CFU - 16 Strains Bio Culture Supplement for Women & Men with Fennel Ginger & Vitamin B12 Vegan 30 Capsules UK Made**Wellgard**£10.19**693 rev2y ago](https://www.amazon.co.uk/dp/B0CT45SNM2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Hybrid Health Pre & Pro-Bio Cultures - 2 Months Supply 100 Billion CFU 20 Live Cultures with Fibres Multi-Strain Daily Pro Bio Cultures for Men & Women Vegan**Hybrid Health**£8.29**0.0★**▲ 423%**](https://www.amazon.co.uk/dp/B0H7JL28DK) [**Bio Cultures Complex - Gut Health Live Bacteria Supplements for Men & Women - 20 Billion CFU - 30 Acid-Resistant Capsules - Multi-Strain Vegan Tablets with Acidophilus**SuperSelf**£9.12**4.4★**▲ 406%**](https://www.amazon.co.uk/dp/B08GQ4KFR1) [**Bio-Kult Everyday | 14 Strains | Daily Gut Support for Ages 3+ | Live Bacteria Supplement | 30 Capsules**Bio-Kult**£5.18**4.5★**▲ 97%**](https://www.amazon.co.uk/dp/B004SGXY00) [**Optibac Every Day Extra - Advanced Daily Digestive Supplement - Most Researched Lactobacillus Acidophilus - 90 Vegan Capsules**Optibac Probiotics**£52.39**4.7★**▲ 47%**](https://www.amazon.co.uk/dp/B00GNY320W) [**Optibac for Women - Vaginal Live Cultures - Most Researched Strains for Intimate Flora - Lactobacillus Reuteri RC-14 & Lactobacillus Rhamnosus GR-1-60 Vegan Capsules**Optibac Probiotics**£29.85**4.6★**▲ 43%**](https://www.amazon.co.uk/dp/B09Q97DBVH)
**~~View all trending →~~**
## **What buyers say about probiotics**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Excellent product”*
**Value For Money**14%
*“Excellent price”*
**Efficiency**9%
*“Excellent and effective”*
**Acid Regulator/Stomach Ache Relief**8%
*“No more bloating”*
**Ease Of Chewing/Swallowing**6%
*“Easy to swallow”*
**Nutritional Content**5%
*“Great probiotics”*
**Regulates Digestion**4%
*“Gut health”*
**Vitamin**4%
*“I highly recomend these vitamins”*
**Side Effects**3%
*“Have had no negative reactions so far”*
**Dosage**3%
*“I think these pills really did the job”*
### **What buyers complain about **
**Functionality-Overall**18%
*“Didn't work for me”*
**Acid Regulator/Stomach Ache Relief**11%
*“experience stomach pain”*
**Side Effects**11%
*“was nauseaus first day”*
**Value For Money**7%
*“Waste of money for me :-”*
**Regulates Digestion**5%
*“I was having digestive issues after taking a course of cholesterol reducing medication”*
**Allergies**4%
*“Caused my skin to breakout really badly”*
**Taste-Overall**3%
*“Tasteless”*
**Advertised Vs Actual Product**3%
*“As false advertising”*
**Quality-Overall**3%
*“Poor quality”*
**Ingredients-Overall**3%
*“Tablets are extremely high in ingredients and caused a lot of pain, cramping, bloating and excess discharge and even unwanted bleeding”*
## **Common questions**
- **Is probiotics profitable to sell on Amazon United Kingdom?**
- The niche generates £2.7M/yr across 25 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.1%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the probiotics niche?**
- 14 brands and 102 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 69% of demand.
- **What do buyers complain about in probiotics?**
- Top complaints mined from reviews: Functionality-Overall, Acid Regulator/Stomach Ache Relief, Side Effects. The return rate is 0.1%.
- **When does demand for probiotics peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the probiotics niche?**
- Listings span £4.14–£52.39; the average listing price is £13.34 (sweet spot $15–$100). The average incumbent carries 2,345 reviews — the moat a new listing must climb.
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