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54

s boulardii for cats

Worth a look

Shows low returns (0.0%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 54Growth 41Conversion 81Competition 24Returns 100Price range 95Avg price 95Brand share 0Review moat 43Quality gap 63

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Avg price

Incredible$33.10

avg listing price — sweet spot $15–$100

Price range

Incredible$18.81–$48.70

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

Conversion

Great8.5%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Good$366K

$366K/yr · 129K searches

Review moat

Okay2,203.8

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+12.8%

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

Competition

Bad71%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, s boulardii for cats is a $366K/yr Amazon United States market (129K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 54/100.

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

s boulardii for cats market data

Units sold / yr
10K–13K
avg 500–750/product
Revenue / yr
$331K–$414K
units × avg price
Launch success
0 of 1 new (360d)
Conversion rate
8.5%
Avg BSR
#75
Page quality
0%
Prime
100%
Sponsored
93%
Out of stock
0.0%
Avg brand age
62 months
Avg seller age
163 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

5 rising

Sellers

11

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

0%

  • Fera Pets87%
  • FOUR LEAF ROVER6%
  • AnimalBiome3%
  • Nutramax2%
  • LuxeVib2%
  • Open — no brand owns it (0%)

Demand

Weekly Amazon search volume, last 24 weeks — +12.8% search growth over the last 90 days.
5K3KSpike '26Feb '26Mar '26Mar '26Apr '26May '26Jun '26

Top s boulardii for cats search terms

  • fera pets59K/yr
  • fera pets probiotics22K/yr
  • fera16K/yr
  • saccharomyces boulardii for dogs9K/yr
  • four leaf rover probiotic for dogs5K/yr
  • s boulardii for cats6K/yr
  • fera pet4K/yr
  • four leaf rover protect4K/yr
  • fera probiotics for dogs3K/yr
  • fera probiotics for cats2K/yr
All search terms

Top s boulardii for cats 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%$37K20%$73K30%$110K40%$146K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

What buyers say about s boulardii for cats

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

What buyers love

Quality-Overall18%

“Amazing quality”

Pet Friendly14%

“My dog loves it”

Ease Of Use10%

“Easy to use”

Value For Money7%

“price is reasonable”

Taste-Overall7%

“Our dog loves the taste”

Allergies6%

“Relief for the itchy dog”

Soothing/Teething5%

“It helped solve my dogs frequent yeast infections in his toes and ears and he loves the taste”

Flavor3%

“Dog loves flavor”

Ease Of Chewing/Swallowing3%

“Excellent Chew”

Ingredients-Overall3%

“Great ingredients, healthy pet”

What buyers complain about

Indigestion20%

“He was having issues with his digestive system”

Value For Money12%

“A little pricey”

Functionality-Overall11%

“Doesn't work”

Smell11%

“Awful smell”

Allergies9%

“itchy skin”

Taste-Overall7%

“Dog doesn't like the taste”

Size-Overall3%

“Sometimes it's very loose”

Flavor3%

“Deceptive about being Flavor/Odorless”

Advertised Vs Actual Product2%

“It didnt work as advertised”

Quality-Overall2%

“Concerned about quality”

Top return reasons

Taste-Overall19%
Indigestion19%
Compatibility-Overall14%
Functionality-Overall14%
Smell14%
Escape Proof14%
Advertised Vs Actual Product5%

Common questions

Is s boulardii for cats profitable to sell on Amazon United States?
The niche generates $366K/yr across 15 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +12.8%. Flapen's verdict: Worth a look (54/100).
How competitive is the s boulardii for cats niche?
5 brands and 11 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in s boulardii for cats?
Top complaints mined from reviews: Indigestion, Value For Money, Functionality-Overall. The return rate is 0.0%.
What does it cost to enter the s boulardii for cats niche?
Listings span $18.81–$48.70; the average listing price is $33.10 (sweet spot $15–$100). The average incumbent carries 2,204 reviews — the moat a new listing must climb.