---
title: "Lactobacillus Rhamnosus — $29K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/lactobacillus-rhamnosus"
last_updated: "2026-08-12T14:53:12.369Z"
locale: en
meta:
description: "Amazon product research for lactobacillus rhamnosus: $29K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for lactobacillus rhamnosus: $29K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Lactobacillus Rhamnosus — $29K/mo Amazon US Product Research"
---
# **Lactobacillus Rhamnosus**
**Worth a look**
Shows low returns (0.0%), but a deep review moat (18,197 avg reviews) keeps it on the watch list.
Market size 53Growth 19Conversion 71Competition 32Returns 100Price range 93Avg price 95Brand share 55Review moat 17Quality gap 32
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$24.74**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.29–$43.31**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****6.5%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Market size**
**Good****$346K**
$346K/yr · 216K searches
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-12.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****18,197.38**
avg incumbent reviews — the moat a new listing must climb
## **Is lactobacillus rhamnosus profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, lactobacillus rhamnosus is a $346K/yr Amazon United States market (216K searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **lactobacillus rhamnosus market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **15K–20K**
- avg 750–1,000/product
- **Revenue / yr**
- **$371K–$495K**
- units × avg price
- **Conversion rate**
- **6.5%**
- **Avg BSR**
- **#290**
- **Page quality**
- **0%**
- **Prime**
- **94%**
- **Sponsored**
- **88%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **75 months**
- **Avg seller age**
- **152 days**
## **Competition: brands, sellers & click share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**619**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**22%**
- Supersmart29% - Culturelle15% - Vitamatic13% - Metagenics8% - O Positiv7% - Swanson6%
## **lactobacillus rhamnosus demand & seasonality**
Weekly Amazon search volume, last 46 weeks — -12.3% search growth over the last 90 days.
5K3KSpike '26Sep '25Oct '25Dec '25Feb '26Mar '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/us/health-household/lactobacillus-rhamnosus/trend)
## **Top lactobacillus rhamnosus search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **lactobacillus rhamnosus**86K/yr-17.1%5.1% conv. - **lactobacillus rhamnosus gg**50K/yr-0.6%6.5% conv. - **lactobacillus rhamnosus probiotic**10K/yr-24.5%4.2% conv. - **probiotic lactobacillus rhamnosus**7K/yr+44.3%1.8% conv. - **lactobacillus rhamnosus gr-1**10K/yr-15.5%3.6% conv. - **lgg probiotics**8K/yr+1.4%5.7% conv. - **lactobacillus rhamnosus gr-1 and lactobacillus reuteri rc-14**7K/yr-15.4%3.0% conv. - **rhamnosus gg**4K/yr+4.3%6.5% conv. - **l rhamnosus gg**4K/yr-29.4%6.1% conv. - **lactobacillus rhamnosus gg (lgg)**3K/yr-1.3%6.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/lactobacillus-rhamnosus/search-terms)
## **Top lactobacillus rhamnosus 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%10%$35K20%$69K30%$104K40%$138K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Supersmart Lactobacillus Rhamnosus GG 10 Billion CFU per Day (LGG Probiotic with Inulin) - L. Rhamnosus Supplement | Non-GMO & Gluten Free - 60 DR Capsules**Supersmart**$20.30**4.6★1,010 rev](https://www.amazon.com/dp/B07JZF6ZRY) [2**Vitamatic Lactobacillus Rhamnosus 5 Billion per DR Capsule (10 Billion Per 2 Capsules) - 60 Count - Advanced Digestive & Immune Support - Made with Prebiotic Inulin Fiber**Vitamatic**$14.54**4.6★340 rev](https://www.amazon.com/dp/B0CLS4LSJP) [3**Culturelle Pro Strength Daily Probiotics For Digestive Health (2 Month Supply) with Prebiotics for Women & Men Supports Occasional Diarrhea Gas & Bloating Gluten & Soy Free 60 Count**Culturelle**$28.35**4.7★15,512 rev](https://www.amazon.com/dp/B08Y66H6B7) [4**O Positiv URO Vaginal Probiotics for Women pH Balance with Prebiotics & Lactobacillus Vaginal Health Supplement Support Healthy Vaginal Odor & Flora 60 Count (Pack of 1) 1 Month Supply**O Positiv**$28.38**4.6★37,127 rev](https://www.amazon.com/dp/B0D5FZGY8W) [5**Swanson Lactobacillus Rhamnosus with FOS - 5 Billion CFU - Digestive Health Support with Fructooligosaccharides - Probiotic Support for Gastrointestinal Health* - Vegan - 60 Veggie Caps**Swanson**$14.58**4.5★946 rev](https://www.amazon.com/dp/B00J03Z616)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Toniiq Lactobacillus Rhamnosus Ultra High Strength 100B CFU with Prebiotic FOS Delayed Release Capsules Third-Party Lab Tested 60 Capsules**Toniiq**$23.00**53 rev8mo ago](https://www.amazon.com/dp/B0FXBNLRT7) [**Metagenics UltraFlora Balance Probiotic - Shelf-Stable Daily Gut Health Supplement for Digestive & Immune Support* - Non-GMO & Gluten-Free - 30 Capsules**Metagenics**$24.27**2,051 rev1y ago](https://www.amazon.com/dp/B0DCWW1JKM) [**Vitamatic Lactobacillus Rhamnosus 5 Billion per DR Capsule (10 Billion Per 2 Capsules) - 60 Count - Advanced Digestive & Immune Support - Made with Prebiotic Inulin Fiber**Vitamatic**$14.54**340 rev2y ago](https://www.amazon.com/dp/B0CLS4LSJP) [**O Positiv URO Vaginal Probiotics for Women pH Balance with Prebiotics & Lactobacillus Vaginal Health Supplement Support Healthy Vaginal Odor & Flora 60 Count (Pack of 1) 1 Month Supply**O Positiv**$28.38**37,127 rev3y ago](https://www.amazon.com/dp/B0D5FZGY8W) [**LABO Nutrition FloraGG Probiotic 25 Billion CFU Microencapsulated Lactobacillus Rhamnosus with Sunfiber Prebiotic Soluble Fiber Supplement Digestive & Immune Health Support 60 Capsules**LABO Nutrition**$29.24**152 rev4y ago](https://www.amazon.com/dp/B0B3J7MNXH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Pure Encapsulations PureGG 25B | Promotes GI and Immune Health Across All Ages* | 60 Capsules**Pure Encapsulations**$43.31**4.4★**▲ 51%**](https://www.amazon.com/dp/B07WJXVQJ5) [**Jarrow Formulas Fem-Dophilus Vaginal Probiotics 1 Billion CFU With 2 Science-Backed Strains Dietary Supplement For Vaginal & Urinary Tract Support 60 Capsules 60 Day Supply Shelf-Stable Probiotics**Jarrow Formulas**$26.24**4.6★**▲ 40%**](https://www.amazon.com/dp/B01B8GNYNO) [**Metagenics UltraFlora Balance Probiotic - Shelf-Stable Daily Gut Health Supplement for Digestive & Immune Support* - Non-GMO & Gluten-Free - 30 Capsules**Metagenics**$24.27**4.6★**▲ 18%**](https://www.amazon.com/dp/B0DCWW1JKM) [**Toniiq Lactobacillus Rhamnosus Ultra High Strength 100B CFU with Prebiotic FOS Delayed Release Capsules Third-Party Lab Tested 60 Capsules**Toniiq**$23.00**4.2★**▲ 17%**](https://www.amazon.com/dp/B0FXBNLRT7) [**Metagenics UltraFlora Womens Probiotic Shelf-Stable Supplement for Vaginal Health Yeast Balance & Urinary Comfort with Lactobacillus GR-1 & RC-14 Non-GMO 30 Capsules***Metagenics**$35.34**4.7★**▲ 13%**](https://www.amazon.com/dp/B00KGSAE6G)
**~~View all trending →~~**
## **What reviews say buyers love and hate about lactobacillus rhamnosus**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**16%
*“Excellent Product”*
**Nutritional Content**12%
*“Best probiotic I had”*
**Regulates Digestion**10%
*“Less digestive issues”*
**Efficiency**9%
*“Definitely effective”*
**Value For Money**6%
*“Best value”*
**Acid Regulator/Stomach Ache Relief**5%
*“helps my stomach”*
**Advertised Vs Actual Product**4%
*“Arrived as described”*
**Ease Of Chewing/Swallowing**3%
*“Not hard to swallow”*
**Ease Of Use**3%
*“Easy to take”*
**Side Effects**3%
*“didnt cause any side effects”*
### **What buyers complain about **
**Functionality-Overall**15%
*“Never worked”*
**Value For Money**9%
*“High price”*
**Acid Regulator/Stomach Ache Relief**8%
*“Severe stomach pain”*
**Smell**7%
*“Made me smell weird”*
**Side Effects**7%
*“I got a rare side effect”*
**Regulates Digestion**7%
*“especially severe constipation for years”*
**Allergies**4%
*“ITCHING”*
**Dosage**4%
*“Unsure if I need To Increase the dosage or what”*
**Taste-Overall**3%
*“Disgusting taste”*
**Quality-Overall**2%
*“It looks like it missed quality control”*
### **Top return reasons **
**Functionality-Overall**30%
**Value For Money**15%
**Acid Regulator/Stomach Ache Relief**10%
**Side Effects**7%
**Certifications**6%
**Leak-Proof**4%
**Regulates Digestion**4%
**Comfort-Overall**4%
**Charging**2%
**Product Condition**2%
## **Common lactobacillus rhamnosus questions**
- **Is lactobacillus rhamnosus profitable to sell on Amazon United States?**
- The niche generates $346K/yr across 16 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.3%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the lactobacillus rhamnosus niche?**
- 14 brands and 619 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in lactobacillus rhamnosus?**
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- **What does it cost to enter the lactobacillus rhamnosus niche?**
- Listings span $14.29–$43.31; the average listing price is $24.74 (sweet spot $15–$100). The average incumbent carries 18,197 reviews — the moat a new listing must climb.
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