Lactobacillus
FailThe average product has 22,356 reviews to catch up to, so Lactobacillus is a Fail.
- Flapen Score
- 46 / 100Ranks 9,041 of 14,768 Health & Household niches · −3 vs the category median of 4946
- Market size
- $169K/yr119K searches / yr
- 90-day growth
- -5.9%search demand this quarter
- Competition
- 69%top-5 click share · 13 brands · 74 sellers
Flapen Score
Lactobacillus against its category
The dotted line is the Health & Household average. Past it, Lactobacillus is stronger. Inside it, weaker.
Market
The Lactobacillus market on Amazon at a glance
Shoppers on Amazon United States searched for Lactobacillus 119K times last year and spent an estimated $169K. The top 5 brands take 76% of clicks. Demand peaks in Aug–Sep–Oct. Flapen scores it 46 out of 100, a Fail.
01 · Demand
An estimated 7.8% of those searches ended in a purchase.
Shoppers searched for this 119K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.8% of those searches ended in a purchase. Searches in the last 90 days moved -5.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $169K a year.
- Searches, last 12 months
- 119K
- Growth, 90 days vs prior 90
- -5.9%
- Conversion, latest week
- 7.8%
- Market size, estimated
- $169Ka year
- Peak month
- September2.1× the quietest month
- Top search term
- lactobacillus acidophilus97K searches a year
02 · Price
A sale here is worth $18.14.
Listings sell for $18.14 on average, from $6.72 to $35.98. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At $18.14 that is $5K to $9K a year per listing.
- Average price
- $18.14inside the $15 to $100 sweet spot
- Price range
- $6.72–$35.98
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $5K–$9K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
89% of listings pay for placement with sponsored ads. 94% ship with Prime. On an average day, 5.1% of listings are out of stock. The average listing ranks #220 within Digestive Supplements. It carries 22,356 reviews at 4.62 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 94%
- Out of stock, average day
- 5.1%
- Average rank
- #220in Digestive Supplements
- Average rating
- 4.62 starsAmazon United States average 4.42 stars
- Average reviews
- 22,356per listing
- Listings tracked
- 18
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 94 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 94 months
Products
Top Lactobacillus products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Nutricost Lactobacillus Acidophilus 10 Billion CFU 120 Vegetarian Capsules
- Price
- $14.84
- Rating
- 4.6/5
- Reviews
- 1,727
- Age
- 9y ago

Swanson Lactobacillus Acidophilus Probiotic for Adults Seeking Daily Digestive and Bowel Health Support with 1 Billion CFU - Acid-Resistant (250 Capsules)
- Price
- $13.23
- Rating
- 4.7/5
- Reviews
- 1,080
- Age
- 21y ago

Natures Bounty Lactobacillus Acidophilus Probiotic Supplement - Daily Probiotic for Women/Men Digestive Health 100 Million Organisms Vegetarian 1 Serving per Day 120 Tablets
- Price
- $6.72
- Rating
- 4.6/5
- Reviews
- 78,050
- Age
- 16y ago

Vitamatic Acidophilus Probiotic - 10 Billion CFU - 5X Potency - Daily Probiotic Supplement Supports Digestive Health - 120 Tablets
- Price
- $9.75
- Rating
- 4.7/5
- Reviews
- 1,301
- Age
- 2y ago

Lactobacillus Acidophilus Probiotic 240 Tablets (4 Month Supply) Researched Strain LA85 3 Billion CFU Digestive Health & Microbiome Support GMP Certified (240 Lactobacillus Acidophilus)
- Price
- $9.95
- Rating
- 4.6/5
- Reviews
- 431
- Age
- 2y ago
Trending
estimated 90-day click momentum
Probiotic 65 Billion - Probiotics with Prebiotic for Women & Men - Lactobacillus Acidophilus Digestive Health Capsules - Targeted Release Technology - Shelf Stable Supplement Non-GMO Dairy Free-30ct
- Price
- $20.85
- Rating
- 4.6/5
- Reviews
- 24,498
- Age
- 5y ago

Swanson Lactobacillus Acidophilus Probiotic for Adults Seeking Daily Digestive and Bowel Health Support with 1 Billion CFU - Acid-Resistant (250 Capsules 2 Pack)
- Price
- $22.96
- Rating
- 4.7/5
- Reviews
- 1,080
- Age
- 7y ago

Metagenics UltraFlora Balance Probiotic - Shelf-Stable Daily Gut Health Supplement for Digestive & Immune Support* - Non-GMO & Gluten-Free - 30 Capsules
- Price
- $24.27
- Rating
- 4.6/5
- Reviews
- 2,051
- Age
- 1y ago

Vitamatic Acidophilus Probiotic - 10 Billion CFU - 5X Potency - Daily Probiotic Supplement Supports Digestive Health - 120 Tablets
- Price
- $9.75
- Rating
- 4.7/5
- Reviews
- 1,301
- Age
- 2y ago

Swanson Lactobacillus Acidophilus Probiotic for Adults Seeking Daily Digestive and Bowel Health Support with 1 Billion CFU - Acid-Resistant (250 Capsules)
- Price
- $13.23
- Rating
- 4.7/5
- Reviews
- 1,080
- Age
- 21y ago
Newest
by launch date
Vitamatic Lactobacillus Acidophilus Probiotic Powder - Digestive Health Support - 100 Gram (3.5 OZ) - 100 Servings
- Price
- $35.98
- Rating
- 4.3/5
- Reviews
- 40
- Age
- 1y ago

Nutricost Lactobacillus Acidophilus 500 Million CFU Per Serving 120 Caps
- Price
- $10.71
- Rating
- 4.6/5
- Reviews
- 183
- Age
- 1y ago

Metagenics UltraFlora Balance Probiotic - Shelf-Stable Daily Gut Health Supplement for Digestive & Immune Support* - Non-GMO & Gluten-Free - 30 Capsules
- Price
- $24.27
- Rating
- 4.6/5
- Reviews
- 2,051
- Age
- 1y ago

Lactobacillus Acidophilus Probiotic 240 Tablets (4 Month Supply) Researched Strain LA85 3 Billion CFU Digestive Health & Microbiome Support GMP Certified (240 Lactobacillus Acidophilus)
- Price
- $9.95
- Rating
- 4.6/5
- Reviews
- 431
- Age
- 2y ago

Vitamatic Acidophilus Probiotic - 10 Billion CFU - 5X Potency - Daily Probiotic Supplement Supports Digestive Health - 120 Tablets
- Price
- $9.75
- Rating
- 4.7/5
- Reviews
- 1,301
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 69% of clicks. Leaders hold, but buyers still shop past them.
Brands
13 flat
Sellers
74
Est. top-5 brand share
76%
Top 20: 100%
Est. top-5 click share
69%
Top 20: 100%
Open market
18%
- Nutricost27%
- Swanson22%
- Physician's CHOICE10%
- Vitamatic9%
- Nature's Bounty8%
- Natural Foundation Supplements6%
Demand
Lactobacillus search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Aug, Sep, Oct · busiest ÷ quietest = 2.1×
Search terms
Top Lactobacillus search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- lactobacillus acidophilus97K/yr
- lactobacillus acidophilus probiotic18K/yr
- lactobacillus acidophilus ncfm4K/yr
Reviews and returns
What reviews say buyers love and hate about Lactobacillus
We read the reviews and the return reasons for every product selling here.
“Never worked”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
20 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Lactobacillus questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









