---
title: "Pb8 — $576K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/pb8"
last_updated: "2026-08-06T17:12:15.948Z"
locale: en
meta:
description: "Niche score 57/100 · $576K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $576K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Pb8 — $576K/yr Amazon US Niche (2026) - Flapen"
---
# **pb8**
**Worth a look**
Shows searches that convert (22.9% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 63Growth 50Conversion 100Competition 37Returns 100Price range 86Avg price 95Brand share 0Review moat 68Quality gap 23
**Conversion**
**Incredible****22.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$26.04**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.65–$49.40**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****792.47**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****$576K**
$576K/yr · 97K searches
**Growth**
**Good****+20.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, pb8 is a $576K/yr Amazon United States market (97K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan. Verdict: Worth a look — 57/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pb8 market data**
- **Units sold / yr**
- **20K–25K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$521K–$651K**
- units × avg price
- **Conversion rate**
- **22.9%**
- **Avg BSR**
- **#713**
- **Page quality**
- **0%**
- **Prime**
- **71%**
- **Sponsored**
- **6%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **84 months**
- **Avg seller age**
- **153 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**2 **—flat
**Sellers**
**80**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**0%**
- PB854% - Nutrition Now46%
## **Demand & seasonality**
Weekly Amazon search volume, last 98 weeks — +20.6% search growth over the last 90 days.
4K3KPrime Day '25Spike '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/health-household/pb8/trend)
## **Top pb8 products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$58K20%$115K30%$173K40%$230K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**PB8 Probiotic | 14 Billion CFU | 120 Capsules | 8 Strains | for Women and Men | Gluten Soy and Milk Free Supplement**PB8**$17.57**4.7★3,687 rev](https://www.amazon.com/dp/B005P0NZVG) [2**PB8 Pro-biotic Acidophilus 120-count (Value Pack of 2)**Nutrition Now**$32.80**4.8★2,140 rev](https://www.amazon.com/dp/B01E0DFMXW) [3**PB8 Probiotic - 3 Pack - 120 Capsules Per Bottle - Supports Digestive Health - 14 Billion CFU - 8 Beneficial Strains - No Milk Gluten or Soy**PB8**$49.40**4.8★266 rev](https://www.amazon.com/dp/B0D5KSKKNX) [4**PB8 Probiotic | 14 Billion CFU | 120 Vegetarian Capsules | 8 Strains | for Women and Men | Gluten Milk and Soy Free Supplement**PB8**$18.78**4.7★2,898 rev](https://www.amazon.com/dp/B00B8YSOW8) [5**Nutrition Now - PB 8 Pro-Biotic Acidophilus - 120 Capsules (pack of 2)**Nutrition Now**$31.04**4.8★1,994 rev](https://www.amazon.com/dp/B002LMIWW8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PB8 Probiotic - 3 Pack - 120 Capsules Per Bottle - Supports Digestive Health - 14 Billion CFU - 8 Beneficial Strains - No Milk Gluten or Soy**PB8**$49.40**266 rev2y ago](https://www.amazon.com/dp/B0D5KSKKNX) [**PB8 Acidophilus Probiotic 120 Count Bottle**Nutrition Now**$23.32**11 rev10y ago](https://www.amazon.com/dp/B01AVKBN6S) [**PB8 Probiotic | 15 Billion CFU | 60 Capsules | 10+ Probiotic Strains | for Women and Men | Gluten Soy and Milk Free Supplement**PB8**$23.42**316 rev10y ago](https://www.amazon.com/dp/B01B21JM7M) [**PB 8 Acidophilus Probiotic 120 Count (Value Pack of 2)**PB8**$38.78**29 rev11y ago](https://www.amazon.com/dp/B00UAZWYDG) [**PB8 Pro-biotic Acidophilus 120-count (Value Pack of 2)**Nutrition Now**$32.80**2,140 rev11y ago](https://www.amazon.com/dp/B01E0DFMXW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nutrition Now Pb8 Acidophilus Veg**Nutrition Now**$20.86**5.0★**▲ 245%**](https://www.amazon.com/dp/B00DGDE1SA) [**PB8 Probiotic | 14 Billion CFU | 60 Vegetarian Capsules | 8 Strains | for Women and Men | Gluten Soy and Milk Free Supplement**PB8**$10.65**3.0★**▲ 244%**](https://www.amazon.com/dp/B002LMUZFK) [**PB 8 120 vcaps**Nutrition Now**$22.78**5.0★**▲ 228%**](https://www.amazon.com/dp/B0016BHONI) [**Now Pb 8 Pro-biotic Acidophilus Caps Vegetarian 120caps X 2**Nutrition Now**$35.10**4.8★**▲ 184%**](https://www.amazon.com/dp/B00QEA9U9W) [**PB8 Acidophilus Probiotic 120 Count Bottle**Nutrition Now**$23.32**4.0★**▲ 164%**](https://www.amazon.com/dp/B01AVKBN6S)
**~~View all trending →~~**
## **What buyers say about pb8**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Nutritional Content**28%
*“Best probiotic”*
**Quality-Overall**20%
*“Excellent product, using it for many years”*
**Regulates Digestion**11%
*“It works good for digestion”*
**Advertised Vs Actual Product**9%
*“It works as advertised”*
**Value For Money**6%
*“Good price”*
**Efficiency**4%
*“Works well”*
**Vitamin**4%
*“it'd be worth your while looking into this daily supplement”*
**Durability**3%
*“I have been using it consistently for a few years”*
**Acid Regulator/Stomach Ache Relief**2%
*“Helps our stomach so much happier”*
**Immunity Booster**2%
*“Helps support digestive system health, and intestinal balance, boost immune function”*
### **What buyers complain about **
**Regulates Digestion**22%
*“Its not helping my bloat”*
**Acid Regulator/Stomach Ache Relief**22%
*“Even higher amount of acidophilus does not help me be regular as much as this product”*
**Value For Money**17%
*“Too expensive”*
**Compatibility-Overall**11%
*“not compatible to me”*
**Allergies**11%
*“I use this product because I'm allergic to so many foods, spices and environmental issues”*
**Dosage**6%
*“Very expensive for amount of pills received”*
**Pain Relief-Overall**4%
*“Its mysterious pain”*
## **Common questions**
- **Is pb8 profitable to sell on Amazon United States?**
- The niche generates $576K/yr across 17 tracked products. 90-day search growth is +20.6%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the pb8 niche?**
- 2 brands and 80 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in pb8?**
- Top complaints mined from reviews: Regulates Digestion, Acid Regulator/Stomach Ache Relief, Value For Money. The return rate is 0.0%.
- **When does demand for pb8 peak?**
- Demand peaks in Jan; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the pb8 niche?**
- Listings span $10.65–$49.40; the average listing price is $26.04 (sweet spot $15–$100). The average incumbent carries 792 reviews — the moat a new listing must climb.
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