---
title: "Km — $3K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/km"
last_updated: "2026-08-12T14:51:27.591Z"
locale: en
meta:
description: "Amazon product research for km: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for km: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Km — $3K/mo Amazon US Product Research (2026)"
---
# **Km**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 9Growth 26Conversion 17Competition 19Returns 99Price range 77Avg price 95Brand share 0Review moat 36Quality gap 38
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$45.81**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.31–$124.17**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,928.82**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+1.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
**Conversion**
**Bad****1.4%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$37K**
$37K/yr · 59K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
## **Is km profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, km is a $37K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **km 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**
- **$69K–$92K**
- units × avg price
- **Conversion rate**
- **1.4%**
- **Avg BSR**
- **#332**
- **Page quality**
- **0%**
- **Prime**
- **82%**
- **Sponsored**
- **91%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **163 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▲rising
**Sellers**
**10**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**0%**
- Univera77% - KM Legend13% - Designs for Health7% - Optimox3% - Open — no brand owns it (0%)
## **km demand & seasonality**
Weekly Amazon search volume, last 13 weeks — +1.1% search growth over the last 90 days.
2K1KPrime Day '26May '26May '26May '26Jun '26Jun '26Jul '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/km/trend)
## **Top km search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **univera**6K/yr-8.3%2.9% conv. - **univera xtra**2K/yr-18.7%5.8% conv. - **matol-univera-potassium-supplement-botanical**3K/yr-72.3%1.3% conv. [**All search terms **](https://flapen.com/research/us/health-household/km/search-terms)
## **Top km 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%15%$6K30%$11K45%$17K60%$22K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Univera km Liquid Potassium Supplement pH Balance Digestion Support Mineral Supplements with Magnesium Original Karl Jurak Formula 32 fl oz (30-Day Supply)**Univera**$44.10**4.6★1,557 rev](https://www.amazon.com/dp/B003HG7VBU) [2**Univera KM Mineral Supplement | Original Karl Jurak Formula | Rich in Potassium & Vitamins | Stabilizes pH Balance | Supports Digestion + Nutrient Absorption | Natural Phytonutrients | 60 Day Supply**Univera**$84.42**4.6★1,557 rev](https://www.amazon.com/dp/B08V3CSMTD) [3**Designs for Health K+2 Potassium - 300mg Two Forms of Potassium - Potassium Bicarbonate + Glycinate Pills - Supplement Support to Help Maintain Healthy Blood Pressure Levels (120 Capsules)**Designs for Health**$35.85**4.5★875 rev](https://www.amazon.com/dp/B000FGZDFQ) [4**Xtra Concentrate Vitamin B Complex Vital Energy 15 All-Natural Ingredients Supports Stress Management and Joint Health Enhanced Antioxidant Protection Liquid 30-Day Supply 33oz Bottle**Univera**$53.86**4.5★370 rev](https://www.amazon.com/dp/B017I46TD2) [5**Univera Aloe Vera Juice Preminum Organic Aloe Vera Digestive Enzymes for Gut Health Immune Support & Gut Health Aloe Flavor - 30 Days Supply (33 fl oz)**Univera**$39.08**4.4★73 rev](https://www.amazon.com/dp/B08TPJ8NQX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**KM Legend Mens Leather Dress Belt for Work Business and Casual Seattle Burgundy 38 US**KM Legend**$17.04**326 rev1y ago](https://www.amazon.com/dp/B0DDWNXH9M) [**KM Legend Wallet for Women Slim RFID Blocking Credit Card Holder with ID Window Double Zipper Compact Purses for Women with Coin Pocket**KM Legend**$18.66**55 rev2y ago](https://www.amazon.com/dp/B0D8ZPTMPX) [**Glucosamine Chondroitin MSM with Univestin | Joint Support Powder Drink Mix for Mobility & Flexibility | Raspberry Flavor | 30-Day Supply (7g x 30 Sticks)**Univera**$33.94**254 rev5y ago](https://www.amazon.com/dp/B08P18D64N) [**Univera KM Mineral Supplement | Original Karl Jurak Formula | Rich in Potassium & Vitamins | Stabilizes pH Balance | Supports Digestion + Nutrient Absorption | Natural Phytonutrients | 90 Day Supply**Univera**$124.17**1,557 rev5y ago](https://www.amazon.com/dp/B08V3LSGLG) [**Univera Aloe Vera Juice Preminum Organic Aloe Vera Digestive Enzymes for Gut Health Immune Support & Gut Health Aloe Flavor - 30 Days Supply (33 fl oz)**Univera**$39.08**73 rev5y ago](https://www.amazon.com/dp/B08TPJ8NQX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**KM Legend Mens Genuine Leather Dress Belt with Premium Quality - Classic & Fashion Design for Work Business and Casual (esBrown 40)**KM Legend**$14.31**4.5★**▲ 301%**](https://www.amazon.com/dp/B07C25WVB7) [**KM Legend Mens Leather Dress Belt for Work Business and Casual Seattle Burgundy 38 US**KM Legend**$17.04**4.4★**▲ 295%**](https://www.amazon.com/dp/B0DDWNXH9M) [**Designs for Health K+2 Potassium - 300mg Two Forms of Potassium - Potassium Bicarbonate + Glycinate Pills - Supplement Support to Help Maintain Healthy Blood Pressure Levels (120 Capsules)**Designs for Health**$35.85**4.5★**▲ 294%**](https://www.amazon.com/dp/B000FGZDFQ) [**KM Legend Wallet for Women Slim RFID Blocking Credit Card Holder with ID Window Double Zipper Compact Purses for Women with Coin Pocket**KM Legend**$18.66**4.6★**▲ 281%**](https://www.amazon.com/dp/B0D8ZPTMPX) [**ARG Optimox Iodoral 12.5 mg - Iodine & Potassium Iodide Supplement for Thyroid & Metabolic Balance Support - Free of Soy & Gluten - 90 Servings - 90 Tablets**Optimox**$38.51**4.6★**▲ 269%**](https://www.amazon.com/dp/B005MKP9OK)
**~~View all trending →~~**
## **What reviews say buyers love and hate about km**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**16%
*“Excellent product”*
**Vitamin**11%
*“Good supplement”*
**Efficiency**9%
*“Works well”*
**Taste-Overall**7%
*“Like the refreshing taste”*
**Advertised Vs Actual Product**6%
*“Exactly as advertised”*
**Ease Of Chewing/Swallowing**6%
*“Easy to swallow”*
**Muscle Pain Relief**6%
*“Helps leg cramps”*
**Joint Pain**4%
*“Excellent for joint support”*
**Sleep Quality**3%
*“Helps me through the day”*
**Size-Overall**3%
*“fits alot”*
### **What buyers complain about **
**Calcium**20%
*“I have severe low potassium”*
**Magnesium**8%
*“error I felt it was a magnesium deficiency”*
**Quality-Overall**6%
*“Poor Quality control”*
**Contamination**6%
*“I refused to take them nor knowing if contaminated”*
**Blood Pressure**4%
*“Certain Types Of High Blood Pressure And Fatigue”*
**Length**4%
*“Too long”*
**Rusts/Corrodes**4%
*“Unsealed; inside cap and top of bottle looked burnt or corroded”*
**Dosage**4%
*“I hate taking pills”*
**Sweetness**4%
*“I would rather not have Aloe Vera sweetened”*
**Taste-Overall**3%
*“Disliked the taste”*
### **Top return reasons **
**Size-Overall**38%
**Color**23%
**Length**16%
**Advertised Vs Actual Product**9%
**Leather Quality**5%
**Quality-Overall**3%
**Certifications**3%
**Smell**1%
**Product Condition**1%
**Design-Overall**1%
## **Common km questions**
- **Is km profitable to sell on Amazon United States?**
- The niche generates $37K/yr across 11 tracked products. 90-day search growth is +1.1%. Flapen's verdict: Skip it (34/100).
- **How competitive is the km niche?**
- 4 brands and 10 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in km?**
- Top complaints mined from reviews: Calcium, Magnesium, Quality-Overall. The return rate is 0.2%.
- **What does it cost to enter the km niche?**
- Listings span $14.31–$124.17; the average listing price is $45.81 (sweet spot $15–$100). The average incumbent carries 2,929 reviews — the moat a new listing must climb.
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