---
title: "Members Mark Probiotic — $4K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/members-mark-probiotic"
last_updated: "2026-08-12T14:06:08.390Z"
locale: en
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description: "Amazon product research for members mark probiotic: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for members mark probiotic: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Members Mark Probiotic — $4K/mo Amazon US Product Research"
---
# **Members Mark Probiotic**
**Skip it**
A small market ($45K/yr) — this niche doesn't clear our bar today.
Market size 11Growth 60Conversion 97Competition 22Returns 100Price range 81Avg price 95Brand share 29Review moat 17Quality gap 25
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.8%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$23.43**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.75–$39.31**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+36.5%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****88%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****74%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****17,841.67**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$45K**
$45K/yr · 13K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
## **Is members mark probiotic profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, members mark probiotic is a $45K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 49/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **members mark probiotic market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$35K–$47K**
- units × avg price
- **Conversion rate**
- **14.8%**
- **Avg BSR**
- **#391**
- **Page quality**
- **0%**
- **Prime**
- **75%**
- **Sponsored**
- **58%**
- **Out of stock**
- **6.5%**
- **Avg brand age**
- **69 months**
- **Avg seller age**
- **152 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▲rising
**Sellers**
**55**
**Top-5 brand share**
**88%**
Top 20: 100%
**Top-5 click share**
**74%**
Top 20: 100%
**Open market**
**9%**
- Generic49% - NOW Foods18% - MUNCHIE MIX11% - Physician's CHOICE5% - NewRhythm4% - Vitamatic4% - Open — no brand owns it (3 brands, 9%)
## **Top members mark probiotic search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **10 strain probiotic**4K/yr+72.6%6.5% conv. - **members mark probiotic**5K/yr+26.7%6.8% conv. - **10 strain probiotic capsules**4K/yr+5.3%7.3% conv. [**All search terms **](https://flapen.com/research/us/health-household/members-mark-probiotic/search-terms)
## **Top members mark 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.
0%10%$5K20%$9K30%$14K40%$18K1101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Member Mark 10 Strain Probiotic Capsules 84 ct.**Generic**$33.79**4.1★7 rev](https://www.amazon.com/dp/B0GJKDHVHC) [2**NOW Foods Supplements Probiotic-10 25 Billion with 10 Probiotic Strains Dairy Soy and Gluten Free Strain Verified 100 Veg Capsules**NOW Foods**$21.89**4.6★14,922 rev](https://www.amazon.com/dp/B00L1GHMN0) [3**MUNCHIE MIX 10 Strain Probiotic Digestive Care Supplement (84 ct.)**MUNCHIE MIX**$27.23**4.5★38 rev](https://www.amazon.com/dp/B0CJXNJ4YB) [4**Members Womens Daily Probiotic Capsules 25 Billion Cells Vegetarian Probiotics for Digestive Health (90 ct.) with Taha Sticker**Generic**$39.31**4.8★15 rev](https://www.amazon.com/dp/B0DB67CSH1) [5**Physicians CHOICE Probiotics 60 Billion CFU - 10 Strains + Organic Prebiotics - Immune Digestive & Gut Health - Supports Occasional Constipation Diarrhea Gas & Bloating - for Women & Men - 30ct**Physician's CHOICE**$23.28**4.6★143,751 rev](https://www.amazon.com/dp/B079H53D2B)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Member Mark 10 Strain Probiotic Capsules 84 ct.**Generic**$33.79**7 rev6mo ago](https://www.amazon.com/dp/B0GJKDHVHC) [**Totaria 5-in-1 Probiotic Prebiotic & Postbiotic for Women Men 60 Billion CFU 24 Strains w/Digestive Enzymes Prebiotic Fiber Slippery Elm Daily Complete Immune Gut Health 120 Day Supply**Totaria**$20.81**832 rev8mo ago](https://www.amazon.com/dp/B0FW4XNN8W) [**10-Strain Probiotic Digestive Care Supplement Capsules 10 Billion Live Cells Supports Digestive and Immune Health - 84 Count**Generic**$28.59**4 rev1y ago](https://www.amazon.com/dp/B0DPJ49RHW) [**NatureBell Probiotic 200 Billion CFU 40 Strains Per Serving | 240 Veggie Capsules with Prebiotics and Probiotics Full Spectrum Complex with Enzymes Daily Probiotics for Women & Men**NatureBell**$24.04**1,595 rev1y ago](https://www.amazon.com/dp/B0DDCWYPWR) [**Members Womens Daily Probiotic Capsules 25 Billion Cells Vegetarian Probiotics for Digestive Health (90 ct.) with Taha Sticker**Generic**$39.31**15 rev2y ago](https://www.amazon.com/dp/B0DB67CSH1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Member Mark 10 Strain Probiotic Capsules 84 ct.**Generic**$33.79**4.1★**▲ 66%**](https://www.amazon.com/dp/B0GJKDHVHC) [**10-Strain Probiotic Digestive Care Supplement Capsules 10 Billion Live Cells Supports Digestive and Immune Health - 84 Count**Generic**$28.59**5.0★**▲ 31%**](https://www.amazon.com/dp/B0DPJ49RHW) [**Totaria 5-in-1 Probiotic Prebiotic & Postbiotic for Women Men 60 Billion CFU 24 Strains w/Digestive Enzymes Prebiotic Fiber Slippery Elm Daily Complete Immune Gut Health 120 Day Supply**Totaria**$20.81**4.5★**▲ 23%**](https://www.amazon.com/dp/B0FW4XNN8W) [**NOW Foods Supplements Probiotic-10 25 Billion with 10 Probiotic Strains Dairy Soy and Gluten Free Strain Verified 50 Veg Capsules**NOW Foods**$14.29**4.6★**— 5%**](https://www.amazon.com/dp/B002S1U7RU) [**Members Womens Daily Probiotic Capsules 25 Billion Cells Vegetarian Probiotics for Digestive Health (90 ct.) with Taha Sticker**Generic**$39.31**4.8★**— 6%**](https://www.amazon.com/dp/B0DB67CSH1)
**~~View all trending →~~**
## **What reviews say buyers love and hate about members mark probiotic**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“Excellent Product”*
**Nutritional Content**15%
*“Best probiotic I had”*
**Regulates Digestion**12%
*“Less digestive issues”*
**Value For Money**9%
*“Best value”*
**Efficiency**9%
*“Effective for me”*
**Acid Regulator/Stomach Ache Relief**6%
*“Helps with stomach issues”*
**Advertised Vs Actual Product**4%
*“Arrived as described”*
**Ease Of Chewing/Swallowing**4%
*“Ease of swallow”*
**Ease Of Use**3%
*“EASE OF USE”*
**Side Effects**2%
*“I didnt experience any harsh side effects”*
### **What buyers complain about **
**Functionality-Overall**16%
*“Didn't work for me”*
**Regulates Digestion**12%
*“making your digestive issues worse”*
**Acid Regulator/Stomach Ache Relief**10%
*“Severe stomach pain”*
**Value For Money**7%
*“Very expensive”*
**Side Effects**5%
*“it gave me headaches”*
**Dosage**5%
*“Incorrect amount”*
**Quality-Overall**2%
*“Garbage”*
**Taste-Overall**2%
*“No taste and doesnt upset stomach”*
**Allergies**2%
*“Awful Hives/Rash/Itching in”*
**Nutritional Content**2%
*“And I certainly wasn't getting the nutrition I needed”*
### **Top return reasons **
**Functionality-Overall**41%
**Value For Money**18%
**Acid Regulator/Stomach Ache Relief**9%
**Side Effects**5%
**Product Condition**5%
**Quality-Overall**5%
**Advertised Vs Actual Product**5%
**Certifications**5%
**Nutritional Content**5%
**Accuracy-Overall**5%
## **Common members mark probiotic questions**
- **Is members mark probiotic profitable to sell on Amazon United States?**
- The niche generates $45K/yr across 12 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +36.5%. Flapen's verdict: Skip it (49/100).
- **How competitive is the members mark probiotic niche?**
- 9 brands and 55 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 88% of demand.
- **What do buyers complain about in members mark probiotic?**
- Top complaints mined from reviews: Functionality-Overall, Regulates Digestion, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- **What does it cost to enter the members mark probiotic niche?**
- Listings span $9.75–$39.31; the average listing price is $23.43 (sweet spot $15–$100). The average incumbent carries 17,842 reviews — the moat a new listing must climb.
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