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.

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.

Returns

Incredible0.0%

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

Great7.6%

search→purchase rate — share of searches ending in a sale

Brand share

Good63%

top-5 brand share — brands hold most of the demand

Review moat

Good1,208.73

avg incumbent reviews — the moat a new listing must climb

Competition

Okay56%

top-5 click share — leaders hold, buyers still browse

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-17.0%

90-day search growth — must beat 0% to launch

Signals No Dominant Brand

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

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

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.

Peak months: Jan, Feb · busiest ÷ quietest = 2.3×

Open Trend

Top lactobacillus reuteri search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

l reuteri148K/yr -5.4%7.4% conv.
lactobacillus reuteri172K/yr -22.9%6.7% conv.
l reuteri probiotics70K/yr -41.1%6.0% conv.
biogaia gastrus37K/yr +9.2%9.0% conv.
reuteri37K/yr -1.6%7.1% conv.
l. reuteri33K/yr -13.8%6.9% conv.
oxiceutics32K/yr -25.4%4.0% conv.
toniiq22K/yr +15.3%0.1% conv.
reuteri probiotics25K/yr -18.8%6.9% conv.
myreuteri27K/yr -24.3%10.4% conv.

All 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.

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

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$28.524.6★1,765 rev

MyReuteri 10 Billion CFU Probiotic Foundational-Strength L. reuteri LRDR + FOS Prebiotic by Dr. William Davis Makes Yogurt-Like Superfood 30 Veg Capsules

oxiceutics$54.174.6★782 rev

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$23.924.6★4,725 rev

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$9.954.6★690 rev

BLIVA Lactobacillus Reuteri Capsules L Reuteri - 50 Billion CFU per Serving - Highest CFU Count L Reuteri Supplement - 90 Capsules

BLIVA NUTRITION$19.014.6★600 rev

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$23.7355 rev

5mo ago

Coolinario L reuteri Probiotics 50B CFU Lactobacillus reuteri 60 Veg. Caps

Coolinario$19.9452 rev

5mo ago

MyReuteri 20 Billion CFU Probiotic Enhanced-Strength L. reuteri LRDR + FOS Prebiotic by Dr. William Davis Makes Yogurt-Like Superfood 30 Veg Capsules

Oxyceutics$67.69782 rev

9mo ago

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$33.81260 rev

10mo ago

MyReuteri 50 Billion CFU Probiotic Intensive-Strength L. reuteri LRDR + FOS Prebiotic by Dr. William Davis Makes Yogurt-Like Superfood 30 Veg Capsules

oxiceutics$96.17782 rev

1y ago

What reviews say buyers love and hate about lactobacillus reuteri

What buyers praise and complain about, mined from review topics.

What buyers love

Taste-Overall15%

“Good Taste”

Quality-Overall14%

“Excellent Product”

Regulates Digestion7%

“Gut health”

Nutritional Content7%

“Great Probiotic”

Ease Of Use7%

“Easy to take”

Value For Money5%

“Great Value”

Efficiency4%

“APPEARS EFFECTIVE”

Advertised Vs Actual Product4%

“As advertised”

Ingredients-Overall2%

“Good ingredients”

Flavor2%

“The texture was smooth and creamy, and the flavor was very good”

What buyers complain about

Functionality-Overall10%

“Bad results”

Value For Money8%

“it's expensive”

Ingredients-Overall6%

“not where the ingredients come from or are made”

Taste-Overall4%

“have no strong taste”

Dosage4%

“salicylate intolerance so I dont have the recommended 1/2 cup”

Advertised Vs Actual Product4%

“This is quite deceptive advertising”

Instructions/User Manual/Troubleshooting3%

“Instructions not clear”

Quality-Overall3%

“Some were of poorer quality”

Nutritional Content3%

“Im afraid that the potency of the supplement isnt what its promised or quickly went down”

Smell3%

“doesn't really smell like anything”

Top return reasons

Advertised Vs Actual Product33%

Dosage17%

Smell17%

Value For Money17%

Side Effects17%

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.