---
title: "Reviews — vitamin d and b12 - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-d-and-b12/reviews"
last_updated: "2026-08-10T00:23:45.309Z"
locale: en
meta:
  description: "Niche score 46/100 · $231K/yr market · 138K searches/yr · $18.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 46/100 · $231K/yr market · 138K searches/yr · $18.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Reviews — vitamin d and b12 - Flapen"
---

# **vitamin d and b12**

**Skip it**

Soft demand (-18.9% this quarter) — this niche doesn't clear our bar today.

Market size 44Growth 16Conversion 84Competition 25Returns 100Price range 72Avg price 83Brand share 40Review moat 23Quality gap 23

**Returns**

**Incredible****0.0%**

return rate — above 5% kills the launch gate

**Conversion**

**Great****9.2%**

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

**Avg price**

**Great****$18.11**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$8.65–$31.72**

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

**Market size**

**Okay****$231K**

$231K/yr · 138K searches

**Brand share**

**Okay****81%**

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

**Competition**

**Okay****70%**

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

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Bad****8,074.92**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-18.9%**

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

## Reviews