---
title: "Reviews — reduce swelling knee - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/reduce-swelling-knee/reviews"
last_updated: "2026-08-11T18:47:38.135Z"
locale: en
meta:
  description: "Niche score 54/100 · $86K/yr market · 51K searches/yr. A concentrated shelf (top 5 take 77% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 54/100 · $86K/yr market · 51K searches/yr. A concentrated shelf (top 5 take 77% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — reduce swelling knee - Flapen"
---

# **reduce swelling knee**

**Worth a look**

Shows demand growing +185.9% this quarter, but a concentrated shelf (top 5 take 77% of clicks) keeps it on the watch list.

Market size 22Growth 97Conversion 78Competition 19Returns 26Price range 77Avg price 92Brand share 41Review moat 25Quality gap 94

**Growth**

**Incredible****+185.9%**

90-day search growth — must beat 0% to launch

**Quality gap**

**Great****4.0★**

avg incumbent rating — lower means beatable quality

**Avg price**

**Great****$21.80**

avg listing price — sweet spot $15–$100

**Conversion**

**Great****7.8%**

search→purchase rate — share of searches ending in a sale

**Price range**

**Great****$9.53–$33.36**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Brand share**

**Okay****81%**

top-5 brand share — brands hold most of the demand

**Returns**

**Okay****4.9%**

return rate — above 5% kills the launch gate

**Review moat**

**Bad****4,696.92**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Bad****$86K**

$86K/yr · 51K searches

**Competition**

**Bad****77%**

top-5 click share — a locked-up shelf

**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")

## Reviews