---
title: "Lactobacillus Reuteri — $157K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/lactobacillus-reuteri"
last_updated: "2026-08-12T15:02:24.532Z"
locale: en
meta:
description: "Amazon product research for lactobacillus reuteri: $157K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for lactobacillus reuteri: $157K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Lactobacillus Reuteri — $157K/mo Amazon US Product Research"
---
# **Lactobacillus Reuteri**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 93Growth 17Conversion 77Competition 49Returns 100Price range 90Avg price 95Brand share 70Review moat 57Quality gap 40
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$33.48**
avg listing price — sweet spot $15–$100
**Market size**
**Great****$1.9M**
$1.9M/yr · 740K searches
**Price range**
**Great****$9.95–$96.17**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****7.6%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****63%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****1,208.73**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-17.0%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
## **Is lactobacillus reuteri profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, lactobacillus reuteri is a $1.9M/yr Amazon United States market (740K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Jan–Feb. Verdict: Worth a look — 65/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **lactobacillus reuteri market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **50K–60K**
- avg 2,500–3,000/product
- **Revenue / yr**
- **$1.7M–$2.0M**
- units × avg price
- **Conversion rate**
- **7.6%**
- **Avg BSR**
- **#642**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **146 days**
## **Competition: brands, sellers & click share**
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**35**
**Top-5 brand share**
**63%**
Top 20: 100%
**Top-5 click share**
**56%**
Top 20: 98%
**Open market**
**29%**
- Toniiq16% - BioGaia14% - oxiceutics14% - Natural Foundation Supplements10% - Coolinario9% - Oxyceutics8%
## **lactobacillus reuteri demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -17.0% search growth over the last 90 days.
45K35KSpike '24Black Friday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/health-household/lactobacillus-reuteri/trend)
## **Top lactobacillus reuteri search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **l reuteri**148K/yr-5.4%7.4% conv. - **lactobacillus reuteri**172K/yr-22.9%6.7% conv. - **l reuteri probiotics**70K/yr-41.1%6.0% conv. - **biogaia gastrus**37K/yr+9.2%9.0% conv. - **reuteri**37K/yr-1.6%7.1% conv. - **l. reuteri**33K/yr-13.8%6.9% conv. - **oxiceutics**32K/yr-25.4%4.0% conv. - **toniiq**22K/yr+15.3%0.1% conv. - **reuteri probiotics**25K/yr-18.8%6.9% conv. - **myreuteri**27K/yr-24.3%10.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/lactobacillus-reuteri/search-terms)
## **Top lactobacillus reuteri 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%4%$75K8%$151K12%$226K16%$302K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Toniiq 50 Billion CFU Lactobacillus Reuteri Probiotic 50mg per Serving - L Reuteri Probiotics - Highest CFU Count Lactobacillus Reuteri Probiotic - 60 Vegetarian Capsules - 60 Servings**Toniiq**$28.52**4.6★1,765 rev](https://www.amazon.com/dp/B0C6RHWK6M) [2**MyReuteri 10 Billion CFU Probiotic Foundational-Strength L. reuteri LRDR + FOS Prebiotic by Dr. William Davis Makes Yogurt-Like Superfood 30 Veg Capsules**oxiceutics**$54.17**4.6★782 rev](https://www.amazon.com/dp/B0FBQQW4M1) [3**BioGaia Gastrus Gut Health Probiotic | Eases Abdominal Discomfort Gas & Bloating | Promotes Regularity & a Healthy Gut | Contributes to a Balanced Microbiome | Backed by 30 Years of Research**BioGaia**$23.92**4.6★4,725 rev](https://www.amazon.com/dp/B01AH3RT9Y) [4**Lactobacillus Reuteri Probiotic 240 Tablets (4 Month Supply) Researched Strain LR08 3 Billion CFU Digestive Health & Gut Comfort GMP Certified (240 Lactobacillus Reuteri)**Natural Foundation Supplements**$9.95**4.6★690 rev](https://www.amazon.com/dp/B0CWVPRYKL) [5**BLIVA Lactobacillus Reuteri Capsules L Reuteri - 50 Billion CFU per Serving - Highest CFU Count L Reuteri Supplement - 90 Capsules**BLIVA NUTRITION**$19.01**4.6★600 rev](https://www.amazon.com/dp/B0DTCDPVK3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**L Reuteri Yogurt Starter & Probiotic Powder Ultra High Strength 200 Billion CFU Pure Lactobacillus Reuteri 3rd Party Tested Shelf-Stable Single-Strain 20g**Toniiq**$23.73**55 rev5mo ago](https://www.amazon.com/dp/B0G2BSVHQ2) [**Coolinario L reuteri Probiotics 50B CFU Lactobacillus reuteri 60 Veg. Caps**Coolinario**$19.94**52 rev5mo ago](https://www.amazon.com/dp/B0GM2ZLJPV) [**MyReuteri 20 Billion CFU Probiotic Enhanced-Strength L. reuteri LRDR + FOS Prebiotic by Dr. William Davis Makes Yogurt-Like Superfood 30 Veg Capsules**Oxyceutics**$67.69**782 rev9mo ago](https://www.amazon.com/dp/B0FT239TKN) [**MyReuteri Complete Starter Culture LRDR + 13 g FOS/Inulin Prebiotic Blend Live Probiotic Cultures Makes 6 Quarts YogurtLike Cultured Dairy Developed with Dr. William Davis**Oxyceutics**$33.81**260 rev10mo ago](https://www.amazon.com/dp/B0FQBL2GLY) [**MyReuteri 50 Billion CFU Probiotic Intensive-Strength L. reuteri LRDR + FOS Prebiotic by Dr. William Davis Makes Yogurt-Like Superfood 30 Veg Capsules**oxiceutics**$96.17**782 rev1y ago](https://www.amazon.com/dp/B0FJ7JRFF5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Coolinario L reuteri Probiotics 50B CFU Lactobacillus reuteri 60 Veg. Caps**Coolinario**$19.94**4.3★**▲ 386%**](https://www.amazon.com/dp/B0GM2ZLJPV) [**L Reuteri Yogurt Starter & Probiotic Powder Ultra High Strength 200 Billion CFU Pure Lactobacillus Reuteri 3rd Party Tested Shelf-Stable Single-Strain 20g**Toniiq**$23.73**3.8★**▲ 107%**](https://www.amazon.com/dp/B0G2BSVHQ2) [**BioGaia Gastrus Gut Health | Probiotic Capsules | Eases Abdominal Discomfort Gas & Bloating | Promotes Regularity & a Healthy Gut | Supports a Balanced Microbiome | Backed by 30 Years of Research**BioGaia**$46.76**4.6★**▲ 60%**](https://www.amazon.com/dp/B0FDX7DYP2) [**MyReuteri 20 Billion CFU Probiotic Enhanced-Strength L. reuteri LRDR + FOS Prebiotic by Dr. William Davis Makes Yogurt-Like Superfood 30 Veg Capsules**Oxyceutics**$67.69**4.6★**▲ 56%**](https://www.amazon.com/dp/B0FT239TKN) [**Vitamatic Lactobacillus Reuteri Complex 22 Billion CFU per Delayed Release Capsule 60 Capsules Digestive & Gut Health Support with Prebiotic Inulin Fiber**Vitamatic**$14.38**4.7★**▲ 53%**](https://www.amazon.com/dp/B0CJQKQNWX)
**~~View all trending →~~**
## **What reviews say buyers love and hate about lactobacillus reuteri**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**15%
*“Good Taste”*
**Quality-Overall**14%
*“Excellent Product”*
**Regulates Digestion**7%
*“Gut health”*
**Nutritional Content**7%
*“Great Probiotic”*
**Ease Of Use**7%
*“Easy to take”*
**Value For Money**5%
*“Great Value”*
**Efficiency**4%
*“APPEARS EFFECTIVE”*
**Advertised Vs Actual Product**4%
*“As advertised”*
**Ingredients-Overall**2%
*“Good ingredients”*
**Flavor**2%
*“The texture was smooth and creamy, and the flavor was very good”*
### **What buyers complain about **
**Functionality-Overall**10%
*“Bad results”*
**Value For Money**8%
*“it's expensive”*
**Ingredients-Overall**6%
*“not where the ingredients come from or are made”*
**Taste-Overall**4%
*“have no strong taste”*
**Dosage**4%
*“salicylate intolerance so I dont have the recommended 1/2 cup”*
**Advertised Vs Actual Product**4%
*“This is quite deceptive advertising”*
**Instructions/User Manual/Troubleshooting**3%
*“Instructions not clear”*
**Quality-Overall**3%
*“Some were of poorer quality”*
**Nutritional Content**3%
*“Im afraid that the potency of the supplement isnt what its promised or quickly went down”*
**Smell**3%
*“doesn't really smell like anything”*
### **Top return reasons **
**Advertised Vs Actual Product**33%
**Dosage**17%
**Smell**17%
**Value For Money**17%
**Side Effects**17%
## **Common lactobacillus reuteri questions**
- **Is lactobacillus reuteri profitable to sell on Amazon United States?**
- The niche generates $1.9M/yr across 22 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is -17.0%. Flapen's verdict: Worth a look (65/100).
- **How competitive is the lactobacillus reuteri niche?**
- 14 brands and 35 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 63% of demand.
- **What do buyers complain about in lactobacillus reuteri?**
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Ingredients-Overall. The return rate is 0.0%.
- **When does demand for lactobacillus reuteri peak?**
- Demand peaks in Jan–Feb; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the lactobacillus reuteri niche?**
- Listings span $9.95–$96.17; the average listing price is $33.48 (sweet spot $15–$100). The average incumbent carries 1,209 reviews — the moat a new listing must climb.
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