---
title: "Fum Cores — $10K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/fum-cores"
last_updated: "2026-08-12T07:22:33.204Z"
locale: en
meta:
description: "Amazon product research for fum cores: $10K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for fum cores: $10K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Fum Cores — $10K/mo Amazon US Product Research (2026)"
---
# **Fum Cores**
**Worth a look**
Shows beatable incumbent ratings (3.3★), but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.
Market size 28Growth 21Conversion 80Competition 41Returns 91Price range 76Avg price 95Brand share 7Review moat 89Quality gap 100
**Quality gap**
**Incredible****3.3★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Incredible****$31.26**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****214.91**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****8.4%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$9.24–$120.80**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$123K**
$123K/yr · 47K searches
**Growth**
**Bad****-7.1%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
## **Is fum cores profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, fum cores is a $123K/yr Amazon United States market (47K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jun. Verdict: Worth a look — 54/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fum cores market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$94K–$125K**
- units × avg price
- **Conversion rate**
- **8.4%**
- **Avg BSR**
- **#347**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **27.2%**
- **Avg brand age**
- **27 months**
- **Avg seller age**
- **194 days**
## **Competition: brands, sellers & click share**
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▲rising
**Sellers**
**8**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 97%
**Open market**
**1%**
- FÜM56% - VOIOV15% - Boderi12% - LAMKHOO11% - Healfs4% - Habit Control2% - Open — no brand owns it (1 brand, 1%)
## **fum cores demand & seasonality**
Weekly Amazon search volume, last 70 weeks — -7.1% search growth over the last 90 days.
13K8KSpike '25Prime Day '25Spike '26 seasonMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jun · busiest ÷ quietest = 8.2×
[**Open Trend **](https://flapen.com/research/us/health-household/fum-cores/trend)
## **Top fum cores search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **fum cores**38K/yr-8.1%7.8% conv. - **cores**3K/yr+45.5%0.1% conv. - **fum core**3K/yr+1.3%7.9% conv. - **fum cores replacement**3K/yr-50.3%3.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/fum-cores/search-terms)
## **Top fum cores 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%4%$5K8%$10K12%$15K16%$20K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Fm 3 Packs of Plant Based Citrus Cores | Naturally Switch from Bad Habits | 9 Total Cores**FÜM**$29.07**3.7★690 rev](https://www.amazon.com/dp/B0DBYMKCYF) [2**30 Pieces of Plant Based Cores 10 Fruity Flavors to Keep Fresh Breath**VOIOV**$36.75**3.3★3 rev](https://www.amazon.com/dp/B0GT3SRRP1) [3**Fm 3 Packs of Plant Based Cores | Naturally Switch from Bad Habits | 9 Total Cores (Crisp Mint)**FÜM**$29.71**3.7★690 rev](https://www.amazon.com/dp/B0GHDLR168) [4**Fm 1 Pack of Plant Based Crisp Mint Cores | Naturally Switch from Bad Habits | 3 Total Cores**FÜM**$10.02**3.9★11 rev](https://www.amazon.com/dp/B0FKC34JGL) [5**Fm 3 Packs of Plant Based Retro Sweets Cores | Naturally Switch from Bad Habits | 9 Total Cores**FÜM**$28.53**3.7★690 rev](https://www.amazon.com/dp/B0DBYF4B8G)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**30 Pieces of Plant Based Cores 10 Fruity Flavors to Keep Fresh Breath**VOIOV**$36.75**3 rev3mo ago](https://www.amazon.com/dp/B0GT3SRRP1) [**Fm 3 Packs of Plant Based Cores | Naturally Switch from Bad Habits | 9 Total Cores (Crisp Mint)**FÜM**$29.71**690 rev5mo ago](https://www.amazon.com/dp/B0GHDLR168) [**Fm 1 Pack of Plant Based Crisp Mint Cores | Naturally Switch from Bad Habits | 3 Total Cores**FÜM**$10.02**11 rev5mo ago](https://www.amazon.com/dp/B0FKC34JGL) [**Replace Bad Habit Flavored Air Necklace with 18pcs Refillable Cores in 6 Flavors Habit Support Refreshing Necklace for Stress Relief Sensory Fidget for Adults - Travel Set (Brown)**LAMKHOO**$30.12**56 rev7mo ago](https://www.amazon.com/dp/B0G3Y6T7Y4) [**Replace Bad Habit Flavored Air Device with 18pcs Refillable Cores in 6 Flavors Habit Support Refreshing Device for Stress Relief Sensory Fidget for Adults (Beige)**LAMKHOO**$49.25**13 rev7mo ago](https://www.amazon.com/dp/B0G3Y7CGTC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**30 Pieces of Plant Based Cores 10 Fruity Flavors to Keep Fresh Breath**VOIOV**$36.75**3.3★**▲ 403%**](https://www.amazon.com/dp/B0GT3SRRP1) [**Replace Bad Habit Flavored Air Necklace with 18pcs Refillable Cores in 6 Flavors Habit Support Refreshing Necklace for Stress Relief Sensory Fidget for Adults - Travel Set (Brown)**LAMKHOO**$30.12**2.9★**▲ 217%**](https://www.amazon.com/dp/B0G3Y6T7Y4) [**Replace Bad Habit Flavored Air Necklace with 18pcs Refillable Cores in 6 Flavors Habit Support Refreshing Necklace for Stress Relief Sensory Fidget for Adults - Travel Set (Black)**LAMKHOO**$29.62**2.9★**▲ 215%**](https://www.amazon.com/dp/B0G3Y4SQJQ) [**Fm 3 Packs of Plant Based Cores | Naturally Switch from Bad Habits | 9 Total Cores (Crisp Mint)**FÜM**$29.71**3.7★**▲ 213%**](https://www.amazon.com/dp/B0GHDLR168) [**Healfs 3 Pack Plant-Based Inhaler Cores | Smokeless Core Refills | Total 9 Cores**Healfs**$16.23**3.2★**▲ 168%**](https://www.amazon.com/dp/B0FKTL31L6)
**~~View all trending →~~**
## **What reviews say buyers love and hate about fum cores**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Flavor**13%
*“Great flavor”*
**Taste-Overall**11%
*“Cranberry tastes okay”*
**Value For Money**7%
*“Great value for the money”*
**Smell**6%
*“The smell was okay”*
**Advertised Vs Actual Product**6%
*“Just as expected”*
**Quality-Overall**6%
*“Great quality and perfect for keeping things feeling clean and minty”*
**Ease Of Use**4%
*“Super easy to use”*
**Stress/Anxiety**4%
*“Great tool for anxiety reduction”*
**Soothing Effect**3%
*“Great when you cannot vape in public, relieves the tension and anxiety”*
**Oral Hygiene**3%
*“it helps sm w the hand to mouth habit”*
### **What buyers complain about **
**Flavor**27%
*“Terrible chemical flavor”*
**Taste-Overall**18%
*“Doesn't taste like mint at all”*
**Side Effects**6%
*“Just gives you a sore throat”*
**Value For Money**5%
*“not worth it”*
**Advertised Vs Actual Product**4%
*“not disclosed in the product description”*
**Size-Overall**4%
*“They are a little too long”*
**Strength**3%
*“its very strong”*
**Quality-Overall**3%
*“Product is not good”*
**Durability**2%
*“the chain broke the first day I got it”*
**Allergies**2%
*“Caused allergic reaction”*
### **Top return reasons **
**Flavor**23%
**Taste-Overall**15%
**Functionality-Overall**13%
**Advertised Vs Actual Product**11%
**Size-Overall**10%
**Product Condition**4%
**Quality-Overall**3%
**Value For Money**3%
**Smell**3%
**Weight Heavy**2%
## **Common fum cores questions**
- **Is fum cores profitable to sell on Amazon United States?**
- The niche generates $123K/yr across 23 tracked products. 2 of 13 products launched in the last 360 days are still selling. 90-day search growth is -7.1%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the fum cores niche?**
- 7 brands and 8 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in fum cores?**
- Top complaints mined from reviews: Flavor, Taste-Overall, Side Effects. The return rate is 1.2%.
- **When does demand for fum cores peak?**
- Demand peaks in Jun; the busiest month runs 8.2× the quietest.
- **What does it cost to enter the fum cores niche?**
- Listings span $9.24–$120.80; the average listing price is $31.26 (sweet spot $15–$100). The average incumbent carries 215 reviews — the moat a new listing must climb.
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