---
title: "Products — vitamin d test - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-d-test/products"
last_updated: "2026-08-06T18:37:06.425Z"
locale: en
meta:
  description: "Niche score 52/100 · $95K/yr market · 57K searches/yr · $46.93 avg price. Soft demand (-28.5% this quarter) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 52/100 · $95K/yr market · 57K searches/yr · $46.93 avg price. Soft demand (-28.5% this quarter) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Products — vitamin d test - Flapen"
---

# **vitamin d test**

**Worth a look**

Shows low returns (0.3%), but soft demand (-28.5% this quarter) keeps it on the watch list.

Market size 24Growth 11Conversion 45Competition 32Returns 99Price range 81Avg price 94Brand share 41Review moat 95Quality gap 96

**Returns**

**Incredible****0.3%**

return rate — above 5% kills the launch gate

**Quality gap**

**Incredible****3.9★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Great****103.42**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Great****$46.93**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$16.43–$117.71**

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

**Conversion**

**Okay****3.6%**

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

**Brand share**

**Okay****81%**

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

**Competition**

**Okay****66%**

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

**Market size**

**Bad****$95K**

$95K/yr · 57K searches

**Growth**

**Bad****-28.5%**

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

**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")

## Products