Lactobacillus Fermentum
Skip itA deep review moat (25,930 avg reviews) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$29.00avg listing price — sweet spot $15–$100
Price range
Great$4.59–$73.34cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay4.0%search→purchase rate — share of searches ending in a sale
Competition
Okay56%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$147K$147K/yr · 128K searches
Growth
Bad-7.8%90-day search growth — must beat 0% to launch
Brand share
Bad94%top-5 brand share — brand-locked demand
Review moat
Bad25,929.9avg incumbent reviews — the moat a new listing must climb
Is lactobacillus fermentum profitable on Amazon?
According to Flapen's Amazon United States niche tracking, lactobacillus fermentum is a $147K/yr Amazon United States market (128K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Jul–Aug–Oct. Verdict: Skip it — 46/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
lactobacillus fermentum market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $174K–$232K
- units × avg price
- Conversion rate
- 4.0%
- Avg BSR
- #192
- Page quality
- 0%
- Prime
- 97%
- Sponsored
- 90%
- Out of stock
- 8.7%
- Avg brand age
- 80 months
- Avg seller age
- 139 days
Competition: brands, sellers & click share
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.Brands
8 rising
Sellers
626
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
56%
Top 20: 88%
Open market
3%
- Vital Proteins42%
- Hyperbiotics32%
- vital proteins10%
- Vital Farms5%
- Vital Essentials5%
- Vital Nutrients3%
- Open — no brand owns it (2 brands, 3%)
lactobacillus fermentum demand & seasonality
Weekly Amazon search volume, last 98 weeks — -7.8% search growth over the last 90 days.Peak months: Jul, Aug, Oct · busiest ÷ quietest = 3.2×
Top lactobacillus fermentum search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- vital77K/yr
- hyperbiotics11K/yr
- vitals8K/yr
- vital performance protein powder16K/yr
- vital performance protein powder vanilla5K/yr
- vital probiotics3K/yr
- vital performance3K/yr
- hyperbiotics pro-15 probiotics3K/yr
- vital performance protein powder chocolate3K/yr
Top lactobacillus fermentum products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Vital Proteins Collagen Peptides Powder - Supports Hair Nail Skin Bone & Joint Health Unflavored Collagen Protein 9.33 OZ
Vital Proteins$19.294.6★68,247 rev
Hyperbiotics Vital Nutrients Pro-15 Prebiotics and Probiotics for Women and Men | 15 Science Backed Strains | Supports Occasional Constipation Diarrhea Gas & Bloating | 60 Vegan Time Release Pearls
Hyperbiotics$31.534.5★13,778 rev
Vital Proteins Collagen Peptides Powder Advanced with Hyaluronic Acid & Vitamin C 20oz Collagen Protein Unflavored 27 Servings
vital proteins$41.254.5★214,632 rev
Vital Proteins Collagen Peptides Powder Advanced with Hyaluronic Acid & Vitamin C Collagen Supplements Unflavored 12 Servings
Vital Proteins$25.244.5★214,632 rev
Hyperbiotics Vital Nutrients Prebiotic and Probiotic for Women and Men | 60 Billion CFU | Pre and Probiotics Supports Digestive Health Constipation Diarrhea Gas & Bloating | 60 Vegan Capsules
Hyperbiotics$33.384.5★2,055 rev
Newest
by launch date
Vital Source Nutrition Vaginal Probiotic Gummies for Women - pH Balance and Immune Defense Support Healthy Odor and Vaginal Flora - Vegan Gluten-Free - Hawaiian Pineapple - 60 Gummies - 30 Servings
Vital Source Nutrition$29.436,365 rev
Vital Essentials Freeze Dried Cat Treats | Chicken Breast Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 2.1 oz Bag
Vital Essentials$9.582,598 rev
Vital Essentials Freeze Dried Minnows Cat Treats | Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 1 oz Bag
Vital Essentials$10.908,378 rev
Vital Essentials Freeze Dried Raw Chicken Hearts Cat Treats | Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 0.8 oz Bag
Vital Essentials$6.683,621 rev
Vital Proteins Collagen Peptides Powder - Grass Fed Collagen Peptides for Hair Nail Skin Bone & Joint Health Unflavored 27 Servings
Vital Proteins$31.3268,247 rev
Trending
90-day click momentumVital Essentials Freeze Dried Raw Chicken Hearts Cat Treats | Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 0.8 oz Bag
Vital Essentials$6.684.5★
Vital Proteins Collagen Peptides Powder - Supports Hair Nail Skin Bone & Joint Health Unflavored Collagen Protein 9.33 OZ
Vital Proteins$19.294.6★
Vital Essentials Freeze Dried Cat Treats | Chicken Breast Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 2.1 oz Bag
Vital Essentials$9.584.4★
Vital Proteins Collagen Peptides Powder Supplement Hydrolyzed Collagen Peptides Travel Pack 20 Individual Packets
Vital Proteins$32.534.6★
Vital Proteins Collagen Peptides Powder Advanced with Hyaluronic Acid & Vitamin C Collagen Supplements Unflavored 12 Servings
Vital Proteins$25.244.5★
What reviews say buyers love and hate about lactobacillus fermentum
What buyers praise and complain about, mined from review topics.What buyers love
“Cat Approved”
“Excellent Product”
“Perfect snack”
“Helps you stay healthy”
“Mixes easily”
“Great value”
“Good flavor”
“Healthy ingredients”
“The scent seems fresh”
“Easy to take”
What buyers complain about
“Priced to high”
“Tastes Gross”
“The fishy smell”
“Container was smaller than expected”
“difficult to use”
“Hard to Dissolve”
“Flavor is weak”
“Poor quality control”
“The description is very misleading”
“Did not work as expected”
Top return reasons
Common lactobacillus fermentum questions
- Is lactobacillus fermentum profitable to sell on Amazon United States?
- The niche generates $147K/yr across 30 tracked products. 90-day search growth is -7.8%. Flapen's verdict: Skip it (46/100).
- How competitive is the lactobacillus fermentum niche?
- 8 brands and 626 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in lactobacillus fermentum?
- Top complaints mined from reviews: Value For Money, Taste-Overall, Smell. The return rate is 0.0%.
- When does demand for lactobacillus fermentum peak?
- Demand peaks in Jul–Aug–Oct; the busiest month runs 3.2× the quietest.
- What does it cost to enter the lactobacillus fermentum niche?
- Listings span $4.59–$73.34; the average listing price is $29.00 (sweet spot $15–$100). The average incumbent carries 25,930 reviews — the moat a new listing must climb.