---
title: "Reviews — king maker supplement"
canonical_url: "https://flapen.com/research/us/health-household/king-maker-supplement/reviews"
last_updated: "2026-08-12T15:49:01.383Z"
locale: en
meta:
  description: "Amazon product research for king maker supplement: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:description": "Amazon product research for king maker supplement: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:title": "Reviews — king maker supplement"
---

# **King Maker Supplement**

**Worth a look**

Shows low returns (0.0%), but soft demand (-42.8% this quarter) keeps it on the watch list.

Market size 13Growth 4Conversion 15Competition 75Returns 100Price range 88Avg price 95Brand share 76Review moat 24Quality gap 79

**Returns**

**Incredible****0.0%**

return rate — above 5% kills the launch gate

**Avg price**

**Incredible****$35.26**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$7.70–$93.49**

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

**Quality gap**

**Great****4.2★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Great****59%**

top-5 brand share — no brand owns this niche

**Competition**

**Great****40%**

top-5 click share — an open shelf

**Review moat**

**Bad****6,487.47**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Bad****1.2%**

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

**Market size**

**Bad****$54K**

$54K/yr · 130K searches

**Growth**

**Bad****-42.8%**

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

## Reviews