---
title: "Lactobacillus Fermentum — $12K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/lactobacillus-fermentum"
last_updated: "2026-08-12T14:51:42.980Z"
locale: en
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description: "Amazon product research for lactobacillus fermentum: $12K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for lactobacillus fermentum: $12K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Lactobacillus Fermentum — $12K/mo Amazon US Product Research"
---
# **Lactobacillus Fermentum**
**Skip it**
A deep review moat (25,930 avg reviews) — this niche doesn't clear our bar today.
Market size 32Growth 21Conversion 50Competition 48Returns 100Price range 83Avg price 95Brand share 15Review moat 13Quality gap 47
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$29.00**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$4.59–$73.34**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Okay****4.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
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**
**Bad****94%**
top-5 brand share — brand-locked demand
**Review moat**
**Bad****25,929.9**
avg 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 ~~](https://flapen.com/research/methodology)
## **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.
5K3KSpike '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jul, Aug, Oct · busiest ÷ quietest = 3.2×
[**Open Trend **](https://flapen.com/research/us/health-household/lactobacillus-fermentum/trend)
## **Top lactobacillus fermentum search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **vital**77K/yr-5.2%2.7% conv. - **hyperbiotics**11K/yr+23.3%4.8% conv. - **vitals**8K/yr+29.0%1.3% conv. - **vital performance protein powder**16K/yr-29.8%0.6% conv. - **vital performance protein powder vanilla**5K/yr-38.6%0.7% conv. - **vital probiotics**3K/yr-17.2%11.3% conv. - **vital performance**3K/yr-37.9%0.3% conv. - **hyperbiotics pro-15 probiotics**3K/yr-32.9%5.1% conv. - **vital performance protein powder chocolate**3K/yr-63.8%0.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/lactobacillus-fermentum/search-terms)
## **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.
0%5%$7K10%$15K15%$22K20%$29K1001K10K100K1.0M Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Vital Proteins Collagen Peptides Powder - Supports Hair Nail Skin Bone & Joint Health Unflavored Collagen Protein 9.33 OZ**Vital Proteins**$19.29**4.6★68,247 rev](https://www.amazon.com/dp/B09RQBHRCT) [2**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**$31.53**4.5★13,778 rev](https://www.amazon.com/dp/B00JEKYNZA) [3**Vital Proteins Collagen Peptides Powder Advanced with Hyaluronic Acid & Vitamin C 20oz Collagen Protein Unflavored 27 Servings**vital proteins**$41.25**4.5★214,632 rev](https://www.amazon.com/dp/B00K6JUG4K) [4**Vital Proteins Collagen Peptides Powder Advanced with Hyaluronic Acid & Vitamin C Collagen Supplements Unflavored 12 Servings**Vital Proteins**$25.24**4.5★214,632 rev](https://www.amazon.com/dp/B00NLR1PX0) [5**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**$33.38**4.5★2,055 rev](https://www.amazon.com/dp/B0872DT7R2)
**~~View all top sellers →~~**
### **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**$29.43**6,365 rev2y ago](https://www.amazon.com/dp/B0CR4DNM6M) [**Vital Essentials Freeze Dried Cat Treats | Chicken Breast Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 2.1 oz Bag**Vital Essentials**$9.58**2,598 rev2y ago](https://www.amazon.com/dp/B0CLYK47P6) [**Vital Essentials Freeze Dried Minnows Cat Treats | Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 1 oz Bag**Vital Essentials**$10.90**8,378 rev2y ago](https://www.amazon.com/dp/B0CLYMSQZQ) [**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**$6.68**3,621 rev3y ago](https://www.amazon.com/dp/B0BWBMGPDZ) [**Vital Proteins Collagen Peptides Powder - Grass Fed Collagen Peptides for Hair Nail Skin Bone & Joint Health Unflavored 27 Servings**Vital Proteins**$31.32**68,247 rev4y ago](https://www.amazon.com/dp/B09QV3XG8B)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$6.68**4.5★**▲ 120%**](https://www.amazon.com/dp/B0BWBMGPDZ) [**Vital Proteins Collagen Peptides Powder - Supports Hair Nail Skin Bone & Joint Health Unflavored Collagen Protein 9.33 OZ**Vital Proteins**$19.29**4.6★**▲ 77%**](https://www.amazon.com/dp/B09RQBHRCT) [**Vital Essentials Freeze Dried Cat Treats | Chicken Breast Single Ingredient | Premium Quality | Grain Free Healthy Treats for Cats 2.1 oz Bag**Vital Essentials**$9.58**4.4★**▲ 50%**](https://www.amazon.com/dp/B0CLYK47P6) [**Vital Proteins Collagen Peptides Powder Supplement Hydrolyzed Collagen Peptides Travel Pack 20 Individual Packets**Vital Proteins**$32.53**4.6★**▲ 39%**](https://www.amazon.com/dp/B01INKB54I) [**Vital Proteins Collagen Peptides Powder Advanced with Hyaluronic Acid & Vitamin C Collagen Supplements Unflavored 12 Servings**Vital Proteins**$25.24**4.5★**▲ 34%**](https://www.amazon.com/dp/B00NLR1PX0)
**~~View all trending →~~**
## **What reviews say buyers love and hate about lactobacillus fermentum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Pet Friendly**19%
*“Cat Approved”*
**Quality-Overall**12%
*“Excellent Product”*
**Taste-Overall**12%
*“Perfect snack”*
**Nutritional Content**5%
*“Helps you stay healthy”*
**Solubility**4%
*“Mixes easily”*
**Value For Money**3%
*“Great value”*
**Flavor**3%
*“Good flavor”*
**Ingredients-Overall**2%
*“Healthy ingredients”*
**Smell**2%
*“The scent seems fresh”*
**Ease Of Use**2%
*“Easy to take”*
### **What buyers complain about **
**Value For Money**12%
*“Priced to high”*
**Taste-Overall**12%
*“Tastes Gross”*
**Smell**7%
*“The fishy smell”*
**Size-Overall**6%
*“Container was smaller than expected”*
**Ease Of Use**6%
*“difficult to use”*
**Solubility**4%
*“Hard to Dissolve”*
**Flavor**4%
*“Flavor is weak”*
**Quality-Overall**3%
*“Poor quality control”*
**Advertised Vs Actual Product**2%
*“The description is very misleading”*
**Functionality-Overall**2%
*“Did not work as expected”*
### **Top return reasons **
**Size-Overall**17%
**Value For Money**14%
**Leak-Proof**11%
**Smell**8%
**Taste-Overall**6%
**Ingredients-Overall**6%
**Advertised Vs Actual Product**4%
**Moist/Dry**4%
**Hard Feel**4%
**Flavor**3%
## **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.
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