---
title: "Silymarin — $563K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/silymarin"
last_updated: "2026-08-11T04:51:52.385Z"
locale: en
meta:
description: "Niche score 60/100 · $563K/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 60/100 · $563K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Silymarin — $563K/yr Amazon US Niche (2026) - Flapen"
---
# **silymarin**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 63Growth 43Conversion 80Competition 61Returns 100Price range 81Avg price 90Brand share 55Review moat 24Quality gap 21
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$21.19**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.99–$43.28**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****8.3%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$563K**
$563K/yr · 321K searches
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+14.2%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****5,004.8**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, silymarin is a $563K/yr Amazon United States market (321K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in May. Verdict: Worth a look — 60/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **silymarin market data**
- **Units sold / yr**
- **25K–30K**
- avg 750–1,000/product
- **Revenue / yr**
- **$530K–$636K**
- units × avg price
- **Conversion rate**
- **8.3%**
- **Avg BSR**
- **#183**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **0.5%**
- **Avg brand age**
- **77 months**
- **Avg seller age**
- **154 days**
## **Competition & brand share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▲rising
**Sellers**
**40**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**48%**
Top 20: 90%
**Open market**
**20%**
- NOW Foods26% - Zazzee15% - Pure Encapsulations12% - Bronson11% - Life Extension8% - VITAMISAN7%
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +14.2% search growth over the last 90 days.
8K6KSpike '25Prime Day '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
Peak months: May · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/health-household/silymarin/trend)
## **Top silymarin search terms**
- **silymarin**69K/yr+16.5%7.8% conv. - **silimarina para el hgado graso**45K/yr+33.0%3.6% conv. - **silimarina**47K/yr-5.9%3.9% conv. - **silymarin milk thistle**21K/yr+93.3%7.1% conv. - **now milk thistle**20K/yr+19.7%16.1% conv. - **milk thistle 80 percent silymarin**10K/yr+28.3%5.3% conv. - **silymarin supplement**22K/yr-39.1%6.9% conv. - **silimarina 1000mg**14K/yr-4.1%3.4% conv. - **silymarin complex super liver support**6K/yr+122.8%4.1% conv. - **milk thistle silymarin**7K/yr+18.1%6.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/silymarin/search-terms)
## **Top silymarin 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%4%$23K8%$45K12%$68K16%$90K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**NOW Foods Supplements Silymarin Milk Thistle Extract 300 mg with Artichoke and Dandelion Double Strength Supports Liver Function* 200 Veg Capsules**NOW Foods**$21.56**4.7★6,618 rev](https://www.amazon.com/dp/B003O1RCO4) [2**Pure Encapsulations Silymarin - 250 mg Milk Thistle Per Capsule - Liver Health Support* - Antioxidants Supplement - Non-GMO & Vegan - 120 Capsules**Pure Encapsulations**$43.28**4.7★1,225 rev](https://www.amazon.com/dp/B07BSKQ5NJ) [3**Bronson Milk Thistle Silymarin Marianum & Dandelion Extract 120 Capsules**Bronson**$9.90**4.7★40,242 rev](https://www.amazon.com/dp/B079JX3FMC) [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**VITAMISAN Milk Thistle silimarina with Dandelion Fennel. Licorice Artichoke Alfalfa Detox & Cleansing Formula Support Liver 120 Capsules**VITAMISAN**$19.13**4.8★287 rev](https://www.amazon.com/dp/B0CQ79KTDR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**NOW Foods Supplements Silymarin Milk Thistle Extract 300 mg with Artichoke and Dandelion Double Strength Supports Liver Function* 250 Veg Capsules**NOW Foods**$28.94**79 rev7mo ago](https://www.amazon.com/dp/B0FZDDDVQW) [**Silimarina con Hinojo en Cpsulas | Suplemento Alimenticio con Antioxidantes | Apoyo para el Bienestar General y el Estilo de Vida Diario | Frmula Herbal | 120 Cpsulas**Generic**$20.37**93 rev1y ago](https://www.amazon.com/dp/B0FF2VT8BV) [**USDA Organic Milk Thistle Liver Detox Supplement Capsules 80% Silymarin 250 mg 120 Count (2 Month Supply) with Beetroot & Artichoke Extract for Liver Support & Digestion Vegan Non-GMO Made in USA**Garden of Herbz**$23.95**197 rev1y ago](https://www.amazon.com/dp/B0F71Z8KCV) [**Suplemento Alimenticio con Silimarina Cardo Mariano Diente de Len Hinojo Complejo B y Regaliz | 120 Cpsulas | Frmula Herbal con Antioxidantes para el Bienestar Diario**Generic**$20.54**101 rev1y ago](https://www.amazon.com/dp/B0DWN2S4VK) [**PURE CO USDA Organic Milk Thistle Capsules - 80% Silymarin Supplement for Liver Support- Super Concentrated 300mg of 30:1 Milk Thistle Extract Liver Detox 120 Day Supply**PURE CO**$23.66**2,183 rev1y ago](https://www.amazon.com/dp/B0DLLNCHNP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**PURE CO USDA Organic Milk Thistle Capsules - 80% Silymarin Supplement for Liver Support- Super Concentrated 300mg of 30:1 Milk Thistle Extract Liver Detox 120 Day Supply**PURE CO**$23.66**4.7★**▲ 176%**](https://www.amazon.com/dp/B0DLLNCHNP) [**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★**▲ 83%**](https://www.amazon.com/dp/B07RWB6BS2) [**NOW Foods Supplements Silymarin Milk Thistle Extract 300 mg with Artichoke and Dandelion Double Strength Supports Liver Function* 50 Veg Capsules**NOW Foods**$9.07**4.7★**▲ 57%**](https://www.amazon.com/dp/B0001T1018) [**Nutricost Milk Thistle Capsules 300mg 120 Capsules (80% Silymarin)**Nutricost**$14.64**4.7★**▲ 53%**](https://www.amazon.com/dp/B0DF8GN1VL) [**NOW Foods Supplements Silymarin Milk Thistle Extract 300 mg with Artichoke and Dandelion Double Strength Supports Liver Function* 250 Veg Capsules**NOW Foods**$28.94**4.6★**▲ 46%**](https://www.amazon.com/dp/B0FZDDDVQW)
**~~View all trending →~~**
## **What buyers say about silymarin**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“The bottle is high quality”*
**Value For Money**6%
*“Very affordable”*
**Regulates Digestion**6%
*“Easy to digest”*
**Ease Of Chewing/Swallowing**5%
*“Easy to swallow”*
**Heart Health**5%
*“Helping with heart health”*
**Efficiency**4%
*“Effective”*
**Vitamin**4%
*“Outstanding Vitamin”*
**Ingredients-Overall**4%
*“Clean ingredients”*
**Vegan/Organic**4%
*“it is organic”*
**Ease Of Use**3%
*“Easy to use capsules”*
### **What buyers complain about **
**Functionality-Overall**11%
*“Does not perform as described”*
**Side Effects**7%
*“Not worth the side effects”*
**Dosage**7%
*“Something is wrong with this dosage or ingredient”*
**Taste-Overall**5%
*“Poor Taste”*
**Acid Regulator/Stomach Ache Relief**4%
*“Bad stomach pain”*
**Advertised Vs Actual Product**4%
*“false advertising”*
**Regulates Digestion**4%
*“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”*
**Allergies**4%
*“very uncomfortable rash”*
**Quality-Overall**3%
*“Poor Quality”*
**Value For Money**3%
*“A little expensive”*
### **Top return reasons **
**Value For Money**15%
**Certifications**15%
**Functionality-Overall**15%
**Ease Of Chewing/Swallowing**8%
**Side Effects**8%
**Age Suitability**8%
**Advertised Vs Actual Product**8%
**Quality-Overall**8%
**Ingredients-Overall**8%
**Acid Regulator/Stomach Ache Relief**4%
## **Common questions**
- **Is silymarin profitable to sell on Amazon United States?**
- The niche generates $563K/yr across 30 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +14.2%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the silymarin niche?**
- 17 brands and 40 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in silymarin?**
- Top complaints mined from reviews: Functionality-Overall, Side Effects, Dosage. The return rate is 0.0%.
- **When does demand for silymarin peak?**
- Demand peaks in May; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the silymarin niche?**
- Listings span $8.99–$43.28; the average listing price is $21.19 (sweet spot $15–$100). The average incumbent carries 5,005 reviews — the moat a new listing must climb.
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