Liquid Probiotic
Worth a lookShows low returns (0.0%), but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$24.76avg listing price — sweet spot $15–$100
Price range
Great$8.44–$46.24cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good7.0%search→purchase rate — share of searches ending in a sale
Market size
Good$794K$794K/yr · 461K searches
Competition
Okay57%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Bad10,612.96avg incumbent reviews — the moat a new listing must climb
Growth
Bad-18.8%90-day search growth — must beat 0% to launch
Brand share
Bad97%top-5 brand share — brand-locked demand
Is liquid probiotic profitable on Amazon?
According to Flapen's Amazon United States niche tracking, liquid probiotic is a $794K/yr Amazon United States market (461K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jan. Verdict: Worth a look — 52/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
liquid probiotic market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 40K–50K
- avg 2,000–2,500/product
- Revenue / yr
- $990K–$1.2M
- units × avg price
- Conversion rate
- 7.0%
- Avg BSR
- #462
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 83%
- Out of stock
- 0.0%
- Avg brand age
- 70 months
- Avg seller age
- 146 days
Competition: brands, sellers & click share
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.Brands
8 rising
Sellers
597
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
57%
Top 20: 96%
Open market
2%
- MARYRUTH'S78%
- Triquetra Health15%
- Tropical Oasis1%
- Garden of Life1%
- Physician's CHOICE1%
- Scibalia1%
- Open — no brand owns it (2 brands, 2%)
liquid probiotic demand & seasonality
Weekly Amazon search volume, last 104 weeks — -18.8% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 1.5×
Top liquid probiotic search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- mary ruth probiotic149K/yr
- mary ruth probiotics for women42K/yr
- liquid probiotic40K/yr
- mary ruths probiotics32K/yr
- flora biome41K/yr
- liquid probiotics for women21K/yr
- liquid probiotics15K/yr
- mary ruths probiotic13K/yr
- probiotic mary ruth10K/yr
- mary ruths probiotics for women11K/yr
Top liquid probiotic 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
MARYRUTHS Organics Liquid Probiotic for Ages 4+ | 2 Billion CFU | 13 Probiotic Strains | Gut Health & Digestive Support | Gas & Bloating Support | Vegan | Gluten Free | Travel-Friendly | 40 Servings
MARYRUTH'S$27.684.3★13,301 rev
Flora Biome - Live Probiotic Prebiotic & Postbiotic Organic Live-Culture 10 Probiotic Strains 18 Fermented Herbs - Complete Gut Health & Microbiome Optimizer (16 oz)
Triquetra Health$46.244.3★1,855 rev
MARYRUTHS 3-in-1 Daily Health Probiotics + Postbiotics for Women | Hormone Support & Gut Health Supplement for Women | Womens Probiotic Supports Vaginal Health | 50 Billion CFU | Vegan | 30 ct
MARYRUTH'S$35.954.7★442 rev
MARYRUTHS USDA Organic Probiotic Gummies Probiotic Digestive Support | Immune Support | Digestive & Gut Health Supplement | 5 Billion CFU | Vegan | Non-GMO | Gluten Free | 60 Count
MARYRUTH'S$23.894.7★918 rev
MARYRUTHS 3-in-1 Probiotics for Digestive Health | Prebiotic & Postbiotic | Gut Health Supplement for Women & Men | 23 Unique Strains | Immune Support | 50 Billion CFU | 30 Servings
MARYRUTH'S$31.504.6★609 rev
Newest
by launch date
Synbiotic Probiotic Prebiotic Post -biotic Liquid Drops Advanced 3-in-1 60 Billion CFU 10 Strains w/Immune Tributyrin Postbiotic for Gut Health & Digestive Support Daily Complete Immune Women Men
Scibalia$19.8940 rev
USDA Organic Liquid Probiotic for Women | PH Balance UT & Feminine Health | Digestive Support Immune & Gut Health | 15 Clinically Studied Strains | 98% Absorption | Vegan Non-GMO | 40 Servings
Tropical Oasis$27.445,810 rev
Flora Digest - 3-in-1 Max Strength Digestive Enzymes + Gut Surviving Probiotics & ButyraGen Postbiotic for Optimal Digestion Bloating Relief Regularity Gut Lining & Colon Support - (30 Capsules)
Triquetra Health$19.75322 rev
Doctors Way Liquid Probiotic for Women and Men | 3 Billion CFU | 2 fl oz
Doctor's Way$8.44102 rev
MARYRUTHS Organics Kids Very Berry Liquid Probiotic 2 FZ
MARYRUTH'S$23.59153 rev
Trending
90-day click momentumSynbiotic Probiotic Prebiotic Post -biotic Liquid Drops Advanced 3-in-1 60 Billion CFU 10 Strains w/Immune Tributyrin Postbiotic for Gut Health & Digestive Support Daily Complete Immune Women Men
Scibalia$19.894.3★
Mary Ruths Organic Kids Strawberry Probiotic Gummies 60 CT
MARYRUTH'S$23.774.6★
Garden of Life Dr. Formulated Once Daily Womens Probiotics with 50 Billion CFU & Organic Prebiotics Vaginal Health Digestive Support Immune Support Dairy Free 30 Capsules
Garden of Life$27.634.6★
Doctors Way Liquid Probiotic for Women and Men | 3 Billion CFU | 2 fl oz
Doctor's Way$8.444.4★
SCD Essential Probiotics for Women Men Kids and Toddlers Live Probiotic for Digestion and Immunity Gut Health Liquid Probiotic Supplement with 11 Strains 16.3 fl oz by SCD Probiotics
SCD Probiotics$30.344.4★
What reviews say buyers love and hate about liquid probiotic
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent Product”
“Best probiotic I had”
“Less digestive issues”
“Effective for me”
“Helps with stomach issues”
“Great deal”
“Easy to Take”
“Not hard to swallow”
“Enjoy the taste”
“Arrived as described”
What buyers complain about
“Didn't work for me”
“Gross taste”
“bloating until your stomach mellows out”
“Very expensive”
“I have a lot of trouble with my digestive system”
“both times have felt nauseous”
“Not the right amount of capsules”
“These smell horrible”
“No Nutritional Label”
“my skin became very itchy”
Top return reasons
Common liquid probiotic questions
- Is liquid probiotic profitable to sell on Amazon United States?
- The niche generates $794K/yr across 24 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -18.8%. Flapen's verdict: Worth a look (52/100).
- How competitive is the liquid probiotic niche?
- 8 brands and 597 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 97% of demand.
- What do buyers complain about in liquid probiotic?
- Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- When does demand for liquid probiotic peak?
- Demand peaks in Jan; the busiest month runs 1.5× the quietest.
- What does it cost to enter the liquid probiotic niche?
- Listings span $8.44–$46.24; the average listing price is $24.76 (sweet spot $15–$100). The average incumbent carries 10,613 reviews — the moat a new listing must climb.