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60

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

Incredible0.0%

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

Great8.3%

search→purchase rate — share of searches ending in a sale

Market size

Good$563K

$563K/yr · 321K searches

Competition

Good48%

top-5 click share — leaders hold, buyers still browse

Brand share

Good72%

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

Bad5,004.8

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

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

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 '25SepDecMarJunAugNovMarMay

Peak months: May · busiest ÷ quietest = 1.6×

Top silymarin search terms

  • silymarin69K/yr
  • silimarina para el hgado graso45K/yr
  • silimarina47K/yr
  • silymarin milk thistle21K/yr
  • now milk thistle20K/yr
  • milk thistle 80 percent silymarin10K/yr
  • silymarin supplement22K/yr
  • silimarina 1000mg14K/yr
  • silymarin complex super liver support6K/yr
  • milk thistle silymarin7K/yr
All 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 moat Market 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.

What buyers say about silymarin

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall18%

“The bottle is high quality”

Value For Money6%

“Very affordable”

Regulates Digestion6%

“Easy to digest”

Ease Of Chewing/Swallowing5%

“Easy to swallow”

Heart Health5%

“Helping with heart health”

Efficiency4%

“Effective”

Vitamin4%

“Outstanding Vitamin”

Ingredients-Overall4%

“Clean ingredients”

Vegan/Organic4%

“it is organic”

Ease Of Use3%

“Easy to use capsules”

What buyers complain about

Functionality-Overall11%

“Does not perform as described”

Side Effects7%

“Not worth the side effects”

Dosage7%

“Something is wrong with this dosage or ingredient”

Taste-Overall5%

“Poor Taste”

Acid Regulator/Stomach Ache Relief4%

“Bad stomach pain”

Advertised Vs Actual Product4%

“false advertising”

Regulates Digestion4%

“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”

Allergies4%

“very uncomfortable rash”

Quality-Overall3%

“Poor Quality”

Value For Money3%

“A little expensive”

Top return reasons

Value For Money15%
Certifications15%
Functionality-Overall15%
Ease Of Chewing/Swallowing8%
Side Effects8%
Age Suitability8%
Advertised Vs Actual Product8%
Quality-Overall8%
Ingredients-Overall8%
Acid Regulator/Stomach Ache Relief4%

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.