---
title: "Milk Thistle — £1.8M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/milk-thistle"
last_updated: "2026-07-31T22:03:09.705Z"
locale: en
meta:
description: "Niche score 57/100 · £1.8M/yr market · 972K searches/yr · £12.08 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 57/100 · £1.8M/yr market · 972K searches/yr · £12.08 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Milk Thistle — £1.8M/yr Amazon UK Niche (2026) - Flapen"
---
# **milk thistle**
**Launch it**
A $1.8M/yr market growing +8.3% this quarter with returns at 0.0% — clears our launch bar.
Market size 91Growth 35Conversion 97Competition 20Returns 100Price range 38Avg price 51Brand share 38Review moat 71Quality gap 33
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.2%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Great****£1.8M**
£1.8M/yr · 972K searches
**Review moat**
**Good****667.21**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****£12.08**
avg listing price — sweet spot $15–$100
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Price range**
**Okay****£5.48–£20.91**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Okay****+8.3%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United Kingdom niche tracking, milk thistle is a £1.8M/yr Amazon United Kingdom market (972K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in May. Verdict: Launch it — 57/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **milk thistle market data**
- **Units sold / yr**
- **125K–150K**
- avg 8,000–10,000/product
- **Revenue / yr**
- **£1.5M–£1.8M**
- units × avg price
- **Conversion rate**
- **15.2%**
- **Avg BSR**
- **#27**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **86%**
- **Out of stock**
- **8.2%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **172 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**13 **▲rising
**Sellers**
**29**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**12%**
- EVO NUTRITION33% - Nutrition Geeks23% - MANTRPHIL13% - Horbäach7% - nutribo6% - WeightWorld6% - Open — no brand owns it (7 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +8.3% search growth over the last 90 days.
30K20KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/milk-thistle/trend)
## **Top milk thistle search terms**
- **milk thistle**645K/yr-1.8%12.9% conv. - **milk thistle high strength**142K/yr+54.0%15.1% conv. - **milk thistle liver detox**29K/yr+78.0%11.4% conv. - **milk thistle tablets**36K/yr-31.2%10.6% conv. - **uvora milk thistle high strength**8K/yr+229.1%7.1% conv. - **milk thistle herbal supplements**20K/yr-24.6%6.9% conv. - **uvora milk thistle liver detox**3K/yr+888.9%4.6% conv. - **silymarin**10K/yr+36.6%7.3% conv. - **milk thistle capsules**10K/yr+63.8%9.0% conv. - **thistle**10K/yr+0.4%0.7% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/milk-thistle/search-terms)
## **Top milk thistle 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%£178K20%£356K30%£534K40%£712K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Milk Thistle Tablets | 80% Silymarin | 180 Tablets | Vegan Supplement | Milk Thistle Capsules Alternative | Made in The UK**EVO NUTRITION**£6.97**4.7★2,440 rev](https://www.amazon.co.uk/dp/B0BBR3V7JC) [2**Milk Thistle Tablets 3-in-1 Complex - 120 Tablets (2 Month Supply) - 100mg Extract 80% Silymarin with Artichoke & Dandelion Leaf (Not Milk Thistle Capsules or Tincture) - Vegan - UK Made Supplement**Nutrition Geeks**£6.26**4.5★323 rev](https://www.amazon.co.uk/dp/B0CQ311XGF) [3**Milk Thistle High Strength 10000mg | 400mg Silymarin per Capsule | 90-Day Supply | with Black Pepper | Vegan Herbal Food Supplement | Lab Tested**MANTRPHIL**£11.48**4.7★60 rev](https://www.amazon.co.uk/dp/B0GNTMV5H9) [4**Milk Thistle Tablets | 80% Silymarin | 365 Tablets | Vegan Supplement | Milk Thistle Capsules Alternative | Made in The UK**EVO NUTRITION**£8.21**4.7★481 rev](https://www.amazon.co.uk/dp/B0CRZDTFTB) [5**Milk Thistle Tablets | High Strength 240 Vegan Tablets | 8-Month Supply | Silybum Marianum Extract | Recyclable & Resealable Pouch | by Horbaach**Horbäach**£5.48**4.5★537 rev](https://www.amazon.co.uk/dp/B093QJ1V94)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Milk Thistle High Strength 10000mg - 400mg Silymarin per Capsule - 120 Capsules with Black Pepper Extract - 4 Months Supply - Vegan Herbal Food Supplement**Vinco Supplements**£10.11**31 rev2mo ago](https://www.amazon.co.uk/dp/B0FWRL9D5W) [**Milk Thistle High Strength 10000mg | 400mg Silymarin per Capsule | 90-Day Supply | with Black Pepper | Vegan Herbal Food Supplement | Lab Tested**MANTRPHIL**£11.48**60 rev5mo ago](https://www.amazon.co.uk/dp/B0GNTMV5H9) [**Milk Thistle High Strength 10 520mg with Dandelion Root and Artichoke | 4 Month Supply | 120 Vegan Capsules | Milk Thistle 3-in-1 | No Fillers Binders or Additives | Made in The United Kingdom**nutribo**£9.51**200 rev7mo ago](https://www.amazon.co.uk/dp/B0G5ZNBX9H) [**Milk Thistle 20 000mg Per Capsule (Maximum Strength) Organic 80% Silymarin Milk Thistle High Strength 60 Vegan Milk Thistle Tablets Capsules Supplement**Insynergy Labs**£20.91**104 rev1y ago](https://www.amazon.co.uk/dp/B0D9KH4XQ8) [**Milk Thistle Capsules - 180 Capsules - 6 Months Supply - Just 1 per Day - 80% Silymarin - 40:1 Extract - Vegan & Non-GMO - GMP-Approved Milk Thistle Herbal Supplements**WeightWorld**£8.93**1,989 rev2y ago](https://www.amazon.co.uk/dp/B0BSGZV1T9)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Milk Thistle High Strength 10000mg - 400mg Silymarin per Capsule - 120 Capsules with Black Pepper Extract - 4 Months Supply - Vegan Herbal Food Supplement**Vinco Supplements**£10.11**4.7★**▲ 115%**](https://www.amazon.co.uk/dp/B0FWRL9D5W) [**Milk Thistle Tablets 3-in-1 Complex - 120 Tablets (2 Month Supply) - 100mg Extract 80% Silymarin with Artichoke & Dandelion Leaf (Not Milk Thistle Capsules or Tincture) - Vegan - UK Made Supplement**Nutrition Geeks**£6.26**4.5★**▲ 114%**](https://www.amazon.co.uk/dp/B0CQ311XGF) [**Milk Thistle 20000mg Capsules (120 Day Supply) Milk Thistle High Strength 80% Silymarin Liver Support Supplement with Dandelion Root Turmeric Artichoke Burdock & Zinc Pure Vegan Extract**Shezi & co**£19.19**4.0★**▲ 95%**](https://www.amazon.co.uk/dp/B0GPY9SW7P) [**Milk Thistle High Strength 10000mg | 400mg Silymarin per Capsule | 90-Day Supply | with Black Pepper | Vegan Herbal Food Supplement | Lab Tested**MANTRPHIL**£11.48**4.7★**▲ 79%**](https://www.amazon.co.uk/dp/B0GNTMV5H9) [**Milk Thistle Tablets | High Strength 240 Vegan Tablets | 8-Month Supply | Silybum Marianum Extract | Recyclable & Resealable Pouch | by Horbaach**Horbäach**£5.48**4.5★**▲ 24%**](https://www.amazon.co.uk/dp/B093QJ1V94)
**~~View all trending →~~**
## **What buyers say about milk thistle**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“A great product from a reputable company for my husband”*
**Value For Money**16%
*“Good value for money”*
**Ease Of Chewing/Swallowing**7%
*“They are a reasonable size so theres no issues swallowing these”*
**Advertised Vs Actual Product**6%
*“Actually works”*
**Ease Of Use**5%
*“Quick and easy”*
**Vitamin**4%
*“will continue to use these as part of our daily vitamins”*
**Regulates Digestion**4%
*“Great product easily digested”*
**Dosage**4%
*“Good dosage”*
**Side Effects**4%
*“It doesnt seem to be harmful either”*
**Heart Health**3%
*“They are helping to control my Cholesterol along with a good diet”*
### **What buyers complain about **
**Functionality-Overall**14%
*“Seems not to work on me”*
**Dosage**9%
*“Unsure of results using 2 tablets a day”*
**Advertised Vs Actual Product**8%
*“Doesn't do what it says”*
**Taste-Overall**4%
*“have no taste”*
**Size-Overall**4%
*“The capsules are quite large”*
**Pain Relief-Overall**3%
*“Chest pain”*
**Ease Of Chewing/Swallowing**3%
*“Hard to swallow”*
**Strength**2%
*“So weak it is worth”*
**Ingredients-Overall**2%
*“BATCHES SHOWN TO ONLY HAVE 1% OF CLAIMED INGREDIENTS”*
**Side Effects**2%
*“one issue was poor reaction with alcohol so teetotal for a while”*
### **Top return reasons **
**Side Effects**100%
## **Common questions**
- **Is milk thistle profitable to sell on Amazon United Kingdom?**
- The niche generates £1.8M/yr across 14 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +8.3%. Flapen's verdict: Launch it (57/100).
- **How competitive is the milk thistle niche?**
- 13 brands and 29 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in milk thistle?**
- Top complaints mined from reviews: Functionality-Overall, Dosage, Advertised Vs Actual Product. The return rate is 0.0%.
- **When does demand for milk thistle peak?**
- Demand peaks in May; the busiest month runs 1.4× the quietest.
- **What does it cost to enter the milk thistle niche?**
- Listings span £5.48–£20.91; the average listing price is £12.08 (sweet spot $15–$100). The average incumbent carries 667 reviews — the moat a new listing must climb.
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