---
title: "Reviews — vitamin deficiency test - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-deficiency-test/reviews"
last_updated: "2026-08-06T19:11:29.702Z"
locale: en
meta:
  description: "Niche score 37/100 · $48K/yr market · 84K searches/yr · $68.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 37/100 · $48K/yr market · 84K searches/yr · $68.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Reviews — vitamin deficiency test - Flapen"
---

# **vitamin deficiency test**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 12Growth 10Conversion 10Competition 3Returns 98Price range 81Avg price 86Brand share 0Review moat 88Quality gap 96

**Returns**

**Incredible****0.4%**

return rate — above 5% kills the launch gate

**Quality gap**

**Incredible****3.9★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Great****236**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Great****$68.65**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$19.64–$117.71**

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

**Market size**

**Bad****$48K**

$48K/yr · 84K searches

**Growth**

**Bad****-29.6%**

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

**Conversion**

**Bad****0.8%**

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

**Competition**

**Bad****97%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Reviews