Is milk thistle for dogs profitable to sell on Amazon United States?

The niche generates $213K/yr across 19 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +2.2%. Flapen's verdict: Worth a look (55/100).

How competitive is the milk thistle for dogs niche?

17 brands and 21 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 69% of demand.

What do buyers complain about in milk thistle for dogs?

Top complaints mined from reviews: Taste-Overall, Smell, Value For Money. The return rate is 0.0%.

When does demand for milk thistle for dogs peak?

Demand peaks in Apr–May; the busiest month runs 1.7× the quietest.

What does it cost to enter the milk thistle for dogs niche?

Listings span $10.03–$62.42; the average listing price is $24.56 (sweet spot $15–$100). The average incumbent carries 1,172 reviews — the moat a new listing must climb.

milk thistle for dogs

Worth a look

Shows low returns (0.0%), but soft demand (+2.2% this quarter) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Avg price

Incredible$24.56

avg listing price — sweet spot $15–$100

Price range

Great$10.03–$62.42

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great7.5%

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

Brand share

Good69%

top-5 brand share — brands hold most of the demand

Review moat

Good1,172.05

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$213K

$213K/yr · 116K searches

Competition

Okay67%

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

Growth

Okay+2.2%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United States niche tracking, milk thistle for dogs is a $213K/yr Amazon United States market (116K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 55/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

milk thistle for dogs market data

Units sold / yr: 10K–13K; avg 500–750/product
Revenue / yr: $246K–$307K; units × avg price
Launch success: —; 0 of 3 new (360d)
Conversion rate: 7.5%
Avg BSR: #142
Page quality: 0%
Prime: 100%
Sponsored: 84%
Out of stock: 3.5%
Avg brand age: 68 months
Avg seller age: 169 days

Competition & brand share

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 rising

Sellers

Top-5 brand share

69%

Top 20: 100%

Top-5 click share

67%

Top 20: 100%

Open market

24%

Pet Wellbeing19%
Coco and Luna17%
WONDER PAWS15%
Pawsitive10%
Clear Max8%
PawVital7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +2.2% search growth over the last 90 days.

Peak months: Apr, May · busiest ÷ quietest = 1.7×

Open Trend

Top milk thistle for dogs search terms

milk thistle for dogs81K/yr -5.4%8.5% conv.
dog milk thistle10K/yr +25.4%4.8% conv.
milk thistle dog7K/yr +19.7%4.4% conv.
milk thistle for dogs liver support6K/yr +28.5%6.6% conv.
milk thistle supplement for dogs7K/yr +15.2%5.9% conv.
milk thistle dogs5K/yr +5.9%6.7% conv.

All search terms

Top milk thistle for dogs 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Pet Wellbeing Milk Thistle for Dogs - Organic Milk Thistle Supports Healthy Liver Function & Detoxification - NASC Certified & Vet-Formulated - 2 oz Liquid

Pet Wellbeing$39.714.6★2,340 rev

Milk Thistle for Dogs 120 Tablets - Liver Kidney & Detox Support

Coco and Luna$25.754.4★3,124 rev

Wonder Paws Milk Thistle Liver Support for Dogs Supports Kidney Function for Pets Detox Hepatic Support with Wild Alaskan Salmon Oil & Curcumin Omega 3 EPA & DHA (2 Oz)

WONDER PAWS$19.704.3★2,017 rev

Wanderfound Pets Milk Thistle for Dogs Tasty Salmon & Bacon Flavored Natural Liver Support for Pets Kidney Cleanse Detox & Repair Formula Manufactured in the USA 100 Chewable Tablets

Pawsitive$19.874.4★1,364 rev

Milk Thistle for Dogs Liver & Kidney Support for Large & Small Pets Milk Thistle for Cats to Care for Digestion Specialist-Approved Liquid Formula with Salmon Flavor GMO Free 2 Oz Bottle

Clear Max$11.894.5★440 rev

Newest

by launch date

MULTIBITES Liver Support for Dogs Milk Thistle (with Natural Silymarin) Same Turmeric (with Curcumin) for Liver Health Antioxidant Immune & Digestive Support & Gut Health - 330 Chews

MULTIBITES$12.479 rev

3mo ago

150 Chews Milk Thistle for Dogs Advanced Milk Thistle Supplement for Dogs with Curcumin Choline Fish Oil Prebiotics Healthy Liver Skin Coat Immune Boost Fit Large Small Medium Breed Chicken Flavor

Watvsk$21.5021 rev

6mo ago

Wellix 120ml Milk Thistle for Cats & Dogs Advanced Formula with Astaxanthin for Detox and Antioxidant Dog Liver Supplement Chicken Flavor Milk Thistle Liquid

Wellix$10.0345 rev

7mo ago

Milk Thistle for Dogs - Max Strength Liver Support Chews Wild Alaskan Salmon Oil & Curcumin - Kidney Detox & Hepatic Support - Natural Liver Support Chews Made with Real Chicken Choline & NAC

PawVital$26.06113 rev

1y ago

Milk Thistle for Dogs 180 Chewable Tablets Milk Thistle Supplement for Dogs Natural Liver Support for Pets Kidney Cleanse & Repair Boosts Immune System Peking Duck Flavor

FSLHCY$13.31128 rev

2y ago

What buyers say about milk thistle for dogs

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

What buyers love

Quality-Overall19%

“THE REVIEWS WERE RIGHT”

Pet Friendly12%

“Dog approved”

Taste-Overall11%

“Yummy—easy to use as a treat”

Flavor10%

“My dog loves the flavor of these tablets”

Ease Of Use10%

“Ease of use”

Value For Money10%

“Good price”

Ingredients-Overall8%

“The ingredients IMO are good”

Ease Of Chewing/Swallowing3%

“so its incredibly easy for him to eat them”

Size-Overall2%

“has no trouble with the size”

Soothing/Teething2%

“Helps with his liver”

What buyers complain about

Taste-Overall20%

“Dog does not like the taste”

Smell13%

“It smells so bad”

Value For Money11%

“it just became too expensive”

Indigestion9%

“Dog developed severe diarrhea on 2nd day”

Flavor5%

“Our dog doesn't like the flavor”

Size-Overall5%

“The bottle is huge”

Leak-Proof4%

“The bottle also leaks”

Hard Feel3%

“Rock hard”

Color3%

“Distinctly different colors”

Ease Of Use2%

“Messy and hard to measure”

Common questions

Is milk thistle for dogs profitable to sell on Amazon United States?: The niche generates $213K/yr across 19 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +2.2%. Flapen's verdict: Worth a look (55/100).
How competitive is the milk thistle for dogs niche?: 17 brands and 21 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 69% of demand.
What do buyers complain about in milk thistle for dogs?: Top complaints mined from reviews: Taste-Overall, Smell, Value For Money. The return rate is 0.0%.
When does demand for milk thistle for dogs peak?: Demand peaks in Apr–May; the busiest month runs 1.7× the quietest.
What does it cost to enter the milk thistle for dogs niche?: Listings span $10.03–$62.42; the average listing price is $24.56 (sweet spot $15–$100). The average incumbent carries 1,172 reviews — the moat a new listing must climb.