---
title: "Reviews — phosphorus supplements - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/phosphorus-supplements/reviews"
last_updated: "2026-08-11T23:53:22.307Z"
locale: en
meta:
  description: "Niche score 56/100 · $271K/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 56/100 · $271K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — phosphorus supplements - Flapen"
---

# **phosphorus supplements**

**Worth a look**

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 49Growth 22Conversion 76Competition 41Returns 100Price range 86Avg price 95Brand share 52Review moat 70Quality gap 38

**Returns**

**Incredible****0.1%**

return rate — above 5% kills the launch gate

**Avg price**

**Incredible****$26.11**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$7.04–$74.82**

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

**Conversion**

**Great****7.4%**

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

**Review moat**

**Good****699.96**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Good****74%**

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

**Market size**

**Okay****$271K**

$271K/yr · 141K searches

**Competition**

**Okay****60%**

top-5 click share — leaders hold, buyers still browse

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-6.3%**

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

## Reviews