---
title: "Milk Thistle — $866K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/milk-thistle"
last_updated: "2026-08-12T11:51:20.480Z"
locale: en
meta:
description: "Amazon product research for milk thistle: $866K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for milk thistle: $866K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Milk Thistle — $866K/mo Amazon US Product Research (2026)"
---
# **Milk Thistle**
**Launch it**
A $10.4M/yr market growing +22.5% this quarter with returns at 0.0% — clears our launch bar.
Market size 100Growth 52Conversion 92Competition 29Returns 100Price range 82Avg price 92Brand share 36Review moat 21Quality gap 21
**Market size**
**Incredible****$10.4M**
$10.4M/yr · 4.3M searches
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.2%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$21.72**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.99–$47.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+22.5%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****68%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****10,690.59**
avg incumbent reviews — the moat a new listing must climb
## **Is milk thistle profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, milk thistle is a $10.4M/yr Amazon United States market (4.3M searches/yr). The top 5 brands hold 83% of demand. Verdict: Launch it — 62/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **milk thistle market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **500K–600K**
- avg 30,000–40,000/product
- **Revenue / yr**
- **$10.9M–$13.0M**
- units × avg price
- **Conversion rate**
- **11.2%**
- **Avg BSR**
- **#99**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **82%**
- **Out of stock**
- **1.0%**
- **Avg brand age**
- **63 months**
- **Avg seller age**
- **149 days**
## **Competition: brands, sellers & click share**
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**68**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**68%**
Top 20: 100%
**Open market**
**14%**
- Bronson38% - Zazzee12% - Nutricost12% - OxyEnergy11% - Nature's Bounty10% - FarmHaven3% - Open — no brand owns it (7 brands, 14%)
## **milk thistle demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +22.5% search growth over the last 90 days.
100K60KPrime Day '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/milk-thistle/trend)
## **Top milk thistle search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **milk thistle**2.4M/yr+25.5%9.5% conv. - **milk thistle supplement**833K/yr+4.2%10.2% conv. - **milk thistle liver detox**383K/yr+44.8%7.9% conv. - **cardo mariano**242K/yr+19.9%2.5% conv. - **cardo mariano para el hgado graso**118K/yr+23.9%2.1% conv. - **milk thistle extract**77K/yr+1.4%1.9% conv. - **thistle**31K/yr+18.5%1.1% conv. - **cardo mariano organico**34K/yr+18.7%2.3% conv. - **milk thistle and dandelion root**13K/yr+33.5%3.1% conv. - **milk thistle 1000mg**16K/yr+36.3%7.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/milk-thistle/search-terms)
## **Top milk thistle products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$1.0M20%$2.1M30%$3.1M40%$4.2M1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Bronson Milk Thistle Silymarin Marianum & Dandelion Extract 120 Capsules**Bronson**$9.90**4.7★40,242 rev](https://www.amazon.com/dp/B079JX3FMC) [2**Nutricost Milk Thistle Extract 240 Capsules for 240 Servings Per Bottle - Vegan GMO Free and Gluten Free**Nutricost**$13.71**4.8★4,949 rev](https://www.amazon.com/dp/B01CTFTIU6) [3**OxyEnergy Milk Thistle Liver Support Supplement 90 Vegetarian Capsules**OxyEnergy**$27.29**4.3★2,366 rev](https://www.amazon.com/dp/B0DFYD1Y2X) [4**Zazzee USDA Organic Milk Thistle 50:1 Extract 80% Silymarin Flavonoids 200 Vegan Capsules 6+ Month Supply Silybum Marianum Liver Support & Detox Support Organic All-Natural Non-GMO Made in USA**Zazzee**$37.09**4.8★1,965 rev](https://www.amazon.com/dp/B07RWB6BS2) [5**Natures Bounty Milk Thistle 1000mg Herbal Health Supplement Daily Supplement Gluten Free Rapid Release Softgels 50 Ct**Nature's Bounty**$9.77**4.7★10,062 rev](https://www.amazon.com/dp/B002QMB63A)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Micro Ingredients Milk Thistle Supplement | 360 Softgels with Grape Seed Oil | Highly Bioavailable Extract | Contains Active Silymarin + Antioxidants**Micro Ingredients**$18.63**402 rev1y ago](https://www.amazon.com/dp/B0F5S4X7L6) [**Cardo Mariano Mexican Herbal Tea - 4 oz (113g) - Authentic 100% Natural Milk Thistle Loose Leaf Tea - Wildcrafted Non-GMO & Caffeine-Free - Traditional Botanical - by BEXPERTSUSA**B-Experts**$12.21**383 rev1y ago](https://www.amazon.com/dp/B0DKMBQ554) [**OxyEnergy Milk Thistle Liver Support Supplement 90 Vegetarian Capsules**OxyEnergy**$27.29**2,366 rev1y ago](https://www.amazon.com/dp/B0DFYD1Y2X) [**Bronson Milk Thistle Silymarin Marianum & Dandelion Extract 360 Capsules**Bronson**$21.75**40,242 rev3y ago](https://www.amazon.com/dp/B0C9V6YH16) [**Bronson Milk Thistle Silymarin Marianum & Dandelion Extract 90 Capsules**Bronson**$8.99**40,242 rev3y ago](https://www.amazon.com/dp/B0C9V4ZJ34)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**THORNE - Milk Thistle Phytosome (Formerly Siliphos) - Botanical Extract Complex for Antioxidant and Liver Support* - Third-Party Certified - Gluten Dairy & Soy-Free - 90 Capsules**THORNE**$47.21**4.8★**▲ 71%**](https://www.amazon.com/dp/B001PLKZKI) [**Zazzee USDA Organic Milk Thistle 50:1 Extract 80% Silymarin Flavonoids 200 Vegan Capsules 6+ Month Supply Silybum Marianum Liver Support & Detox Support Organic All-Natural Non-GMO Made in USA**Zazzee**$37.09**4.8★**▲ 60%**](https://www.amazon.com/dp/B07RWB6BS2) [**Clean Nutraceuticals Milk Thistle NAC Chanca Piedra Beet Root Artichoke Astragalus Dandelion Root - Liver Cleanse Detox & Repair Supplement Plus TUDCA Choline & Ginger - 1Pack**Clean Nutraceuticals**$26.20**4.6★**▲ 32%**](https://www.amazon.com/dp/B0BG7M59NJ) [**OxyEnergy Milk Thistle Liver Support Supplement 90 Vegetarian Capsules**OxyEnergy**$27.29**4.3★**▲ 23%**](https://www.amazon.com/dp/B0DFYD1Y2X) [**Micro Ingredients Milk Thistle Supplement | 360 Softgels with Grape Seed Oil | Highly Bioavailable Extract | Contains Active Silymarin + Antioxidants**Micro Ingredients**$18.63**4.7★**▲ 22%**](https://www.amazon.com/dp/B0F5S4X7L6)
**~~View all trending →~~**
## **What reviews say buyers love and hate about milk thistle**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Good quality and easy to take”*
**Value For Money**8%
*“Very affordable”*
**Regulates Digestion**7%
*“Easy to digest”*
**Ease Of Chewing/Swallowing**5%
*“Easy to swallow”*
**Heart Health**5%
*“Good for your heart”*
**Efficiency**4%
*“Effective”*
**Vitamin**4%
*“Outstanding Vitamin”*
**Detoxification**3%
*“Good detox”*
**Nutritional Content**3%
*“Great effective supplement”*
**Advertised Vs Actual Product**3%
*“As advertised”*
### **What buyers complain about **
**Functionality-Overall**12%
*“Does not perform as described”*
**Dosage**8%
*“Something is wrong with this dosage or ingredient”*
**Side Effects**8%
*“Not worth the side effects”*
**Advertised Vs Actual Product**6%
*“false advertising”*
**Acid Regulator/Stomach Ache Relief**5%
*“Some people experience mild upset stomach”*
**Taste-Overall**5%
*“Poor Taste”*
**Allergies**4%
*“very uncomfortable rash”*
**Ingredients-Overall**4%
*“Some weird ingredients in this product: TUDCA (tauroursodeoxycholic acid) is a bile acid, a modified form of ursodeoxycholic acid (UDCA) with taurine attached”*
**Regulates Digestion**3%
*“really bad flair ups with digestive issues I have tried just about everything until I remembered a dear friend of mine that had liver issues had use to take milk thistle so I decided to order a bottle”*
**Heart Health**3%
*“Although this product did not work for me because it was giving me heart burn”*
### **Top return reasons **
**Certifications**18%
**Value For Money**12%
**Functionality-Overall**12%
**Dosage**6%
**Age Suitability**6%
**Side Effects**6%
**Joint Pain**6%
**Leak-Proof**6%
**Quality-Overall**6%
**Ease Of Chewing/Swallowing**6%
## **Common milk thistle questions**
- **Is milk thistle profitable to sell on Amazon United States?**
- The niche generates $10.4M/yr across 17 tracked products. 90-day search growth is +22.5%. Flapen's verdict: Launch it (62/100).
- **How competitive is the milk thistle niche?**
- 13 brands and 68 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in milk thistle?**
- Top complaints mined from reviews: Functionality-Overall, Dosage, Side Effects. The return rate is 0.0%.
- **When does demand for milk thistle peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the milk thistle niche?**
- Listings span $8.99–$47.21; the average listing price is $21.72 (sweet spot $15–$100). The average incumbent carries 10,691 reviews — the moat a new listing must climb.
## **Related niches to research next**
Same-category niches scoring near this one — the next ones worth researching.
- 76 [**cedar oil**](https://flapen.com/research/us/health-household/cedar-oil)$1.2M/yr+214.4%**Launch it**- 77 [**nutrapure glp1 cutting mix**](https://flapen.com/research/us/health-household/nutrapure-glp1-cutting-mix)$149K/yr+940.2%**Worth a look**- 77 [**dexcom g7**](https://flapen.com/research/us/health-household/dexcom-g7)$2.0M/yr+39.9%**Launch it**- 77 [**purelia**](https://flapen.com/research/us/health-household/purelia)$635K/yr+359.7%**Worth a look**- 77 [**graduation napkins**](https://flapen.com/research/us/health-household/graduation-napkins)$302K/yr+385.7%**Worth a look**- 77 [**credit card wand**](https://flapen.com/research/us/health-household/credit-card-wand)$418K/yr+101.3%**Worth a look**[**All Health & Household niches **](https://flapen.com/research/us/health-household)