---
title: "Trend — melatonin - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/melatonin/trend"
last_updated: "2026-07-31T11:34:25.657Z"
locale: en
meta:
  description: "Niche score 61/100 · £1.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 61/100 · £1.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — melatonin - Flapen"
---

# **melatonin**

**Worth a look**

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 79Growth 9Conversion 41Competition 55Returns 100Price range 57Avg price 67Brand share 78Review moat 46Quality gap 88

**Returns**

**Incredible****0.1%**

return rate — above 5% kills the launch gate

**Quality gap**

**Great****4.1★**

avg incumbent rating — lower means beatable quality

**Market size**

**Great****£1.1M**

£1.1M/yr · 2.4M searches

**Brand share**

**Great****57%**

top-5 brand share — no brand owns this niche

**Avg price**

**Good****£14.03**

avg listing price — sweet spot $15–$100

**Price range**

**Good****£5.18–£28.17**

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

**Competition**

**Good****52%**

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

**Review moat**

**Okay****1,883.9**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Okay****3.2%**

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

**Growth**

**Bad****-32.5%**

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

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500") [** Out of Stock**](https://flapen.com/research/niches?market=uk&signal=out_of_stock "OOS rate > 10%")