---
title: "Reviews — magnesium supplements - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/magnesium-supplements/reviews"
last_updated: "2026-07-31T22:04:30.051Z"
locale: en
meta:
  description: "Niche score 44/100 · £4.8M/yr market · 4.6M searches/yr · £6.94 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 44/100 · £4.8M/yr market · 4.6M searches/yr · £6.94 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Reviews — magnesium supplements - Flapen"
---

# **magnesium supplements**

**Skip it**

Prices mostly outside the sweet spot ($3.44–$9.37) — this niche doesn't clear our bar today.

Market size 97Growth 11Conversion 97Competition 6Returns 100Price range 0Avg price 19Brand share 17Review moat 22Quality gap 35

**Returns**

**Incredible****0.1%**

return rate — above 5% kills the launch gate

**Market size**

**Incredible****£4.8M**

£4.8M/yr · 4.6M searches

**Conversion**

**Incredible****14.8%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Bad****9,415.86**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Bad****£6.94**

avg listing price — sweet spot $15–$100

**Brand share**

**Bad****93%**

top-5 brand share — brand-locked demand

**Growth**

**Bad****-28.8%**

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

**Competition**

**Bad****93%**

top-5 click share — a locked-up shelf

**Price range**

**Bad****£3.44–£9.37**

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