---
title: "Trend — hard water shampoo - Flapen"
canonical_url: "https://flapen.com/research/uk/beauty/hard-water-shampoo/trend"
last_updated: "2026-08-10T10:09:51.310Z"
locale: en
meta:
  description: "Niche score 57/100 · £728K/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 57/100 · £728K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — hard water shampoo - Flapen"
---

# **hard water shampoo**

**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 70Growth 49Conversion 93Competition 45Returns 99Price range 62Avg price 73Brand share 0Review moat 28Quality gap 52

**Returns**

**Incredible****0.1%**

return rate — above 5% kills the launch gate

**Conversion**

**Great****11.4%**

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

**Avg price**

**Good****£14.75**

avg listing price — sweet spot $15–$100

**Market size**

**Good****£728K**

£728K/yr · 433K searches

**Price range**

**Good****£4.34–£32.38**

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

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Growth**

**Okay****+19.1%**

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

**Competition**

**Okay****58%**

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

**Review moat**

**Okay****3,657.86**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## Trend