s boulardii for cats
Worth a lookShows low returns (0.0%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 6% kills the launch gate
Avg price
Incredible$33.10avg listing price — sweet spot $15–$100
Price range
Incredible$18.81–$48.70cheapest 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
Okay2,203.8avg 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.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
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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Fera Pets Organic Probiotics for Dogs & Cats with Prebiotics 60 Scoops
Fera Pets$27.964.4★8,782 rev

Fera Pets Probiotics for Dogs with Prebiotics & Postbiotics 90 Chews
Fera Pets$38.134.4★182 rev

Fera Pets Hip & Joint Supplement for Dogs with Glucosamine 90 Soft Chews
Fera Pets$37.434.5★956 rev

Fera Pets Dog Allergy & Immune Support with Turkey Tail Mushroom 90 Chews
Fera Pets$38.464.2★220 rev

Four Leaf Rover Protect - Probiotics for Dogs - Veterinarian Formulated - with Natural Prebiotics and Antioxidants - Detoxification & Gut Health - 30 Day Large Dog Supply
FOUR LEAF ROVER$29.184.4★593 rev
Newest
by launch date
S.boulardii + FOS Pet Probiotic Powder for Dogs and Cats 6.7 Billion CFU Gut & Immune Support Loose Stool & Digestive Upset Relief Improves Stool Consistency Skin Health Veterinarian Recommended
LuxeVib$25.386 rev

Fera Pets Probiotics for Dogs with Prebiotics & Postbiotics 90 Chews
Fera Pets$38.13182 rev

Fera Pets Dog Allergy & Immune Support with Turkey Tail Mushroom 90 Chews
Fera Pets$38.46220 rev

Fera Pets Dog Multivitamin Chews with Probiotics 90 Chews
Fera Pets$38.67141 rev

Fera Pets Cat Multivitamin - Wellness Blend with Probiotics 60 Scoops
Fera Pets$29.6480 rev
Trending
90-day click momentum
S.boulardii + FOS Pet Probiotic Powder for Dogs and Cats 6.7 Billion CFU Gut & Immune Support Loose Stool & Digestive Upset Relief Improves Stool Consistency Skin Health Veterinarian Recommended
LuxeVib$25.384.8★

Fera Pets Probiotics for Dogs with Prebiotics & Postbiotics 90 Chews
Fera Pets$38.134.4★

Fera Pets Hip & Joint Supplement for Dogs with Glucosamine 90 Soft Chews
Fera Pets$37.434.5★

Nutramax Proviable Probiotics for Dogs and Cats Daily Digestive Health Supplement with Multiple Strains of Bacteria Cat and Dog Probiotics Plus Prebiotics 30 Capsules
Nutramax$18.814.6★

Fera Pets Liquid Fish Oil - Non GMO Omega 3 for Dogs & Cats 16 oz
Fera Pets$37.114.3★
What buyers say about s boulardii for cats
What buyers praise and complain about, mined from review topics.What buyers love
“Amazing quality”
“My dog loves it”
“Easy to use”
“price is reasonable”
“Our dog loves the taste”
“Relief for the itchy dog”
“It helped solve my dogs frequent yeast infections in his toes and ears and he loves the taste”
“Dog loves flavor”
“Excellent Chew”
“Great ingredients, healthy pet”
What buyers complain about
“He was having issues with his digestive system”
“A little pricey”
“Doesn't work”
“Awful smell”
“itchy skin”
“Dog doesn't like the taste”
“Sometimes it's very loose”
“Deceptive about being Flavor/Odorless”
“It didnt work as advertised”
“Concerned about quality”
Top return reasons
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.