---
title: "Reviews — vitamin b3 - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/vitamin-b3/reviews"
last_updated: "2026-07-31T17:25:30.371Z"
locale: en
meta:
  description: "Niche score 44/100 · £139K/yr market · 126K searches/yr · £11.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 44/100 · £139K/yr market · 126K searches/yr · £11.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Reviews — vitamin b3 - Flapen"
---

# **vitamin b3**

**Skip it**

Soft demand (-17.3% this quarter) — this niche doesn't clear our bar today.

Market size 31Growth 16Conversion 87Competition 20Returns 99Price range 58Avg price 42Brand share 33Review moat 37Quality gap 50

**Returns**

**Incredible****0.1%**

return rate — above 5% kills the launch gate

**Conversion**

**Great****10.0%**

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

**Price range**

**Good****£4.94–£28.85**

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

**Quality gap**

**Good****4.5★**

avg incumbent rating — lower means beatable quality

**Avg price**

**Okay****£11.09**

avg listing price — sweet spot $15–$100

**Review moat**

**Okay****2,849.93**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Okay****85%**

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

**Market size**

**Okay****£139K**

£139K/yr · 126K searches

**Competition**

**Bad****76%**

top-5 click share — a locked-up shelf

**Growth**

**Bad****-17.3%**

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