---
title: "Trend — fum cores"
canonical_url: "https://flapen.com/research/us/health-household/fum-cores/trend"
last_updated: "2026-08-12T07:24:35.229Z"
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": "Trend — fum cores"
---

# **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%")

## Trend