---
title: "Magnesium Citrate — £534K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/magnesium-citrate"
last_updated: "2026-07-31T19:37:37.171Z"
locale: en
meta:
description: "Niche score 52/100 · £534K/yr market · 490K searches/yr. Prices mostly outside the sweet spot ($4.01–$17.01) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · £534K/yr market · 490K searches/yr. Prices mostly outside the sweet spot ($4.01–$17.01) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Magnesium Citrate — £534K/yr Amazon UK Niche (2026) - Flapen"
---
# **magnesium citrate**
**Worth a look**
Shows low returns (0.1%), but prices mostly outside the sweet spot ($4.01–$17.01) keeps it on the watch list.
Market size 61Growth 17Conversion 93Competition 51Returns 100Price range 15Avg price 29Brand share 72Review moat 24Quality gap 32
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.5%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****62%**
top-5 brand share — brands hold most of the demand
**Market size**
**Good****£534K**
£534K/yr · 490K searches
**Competition**
**Good****55%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****£9.52**
avg listing price — sweet spot $15–$100
**Review moat**
**Bad****4,973.87**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-17.0%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£4.01–£17.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, magnesium citrate is a £534K/yr Amazon United Kingdom market (490K searches/yr). The top 5 brands hold 62% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium citrate market data**
- **Units sold / yr**
- **50K–60K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **£476K–£571K**
- units × avg price
- **Conversion rate**
- **11.5%**
- **Avg BSR**
- **#145**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **87%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▲rising
**Sellers**
**64**
**Top-5 brand share**
**62%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 97%
**Open market**
**33%**
- Solgar27% - WeightWorld16% - Nutrition Geeks7% - PH PROWISE Healthcare6% - Multivita6% - VitaBright6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -17.0% search growth over the last 90 days.
10K6KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/magnesium-citrate/trend)
## **Top magnesium citrate search terms**
- **magnesium citrate**335K/yr-13.2%9.8% conv. - **solgar**64K/yr-19.1%0.7% conv. - **magnesium citrate capsules**25K/yr-22.2%12.3% conv. - **solgar magnesium**28K/yr-49.1%10.4% conv. - **solgar magnesium citrate**7K/yr-1.1%17.4% conv. - **magnesium solgar**7K/yr-20.2%11.2% conv. - **magnesium citrate tablets**6K/yr-17.8%8.0% conv. - **citrato de magnesio**3K/yr-0.4%3.8% conv. - **solgar vitamins**3K/yr-11.9%0.1% conv. - **magnesium citrate for constipation**3K/yr-11.7%5.3% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/magnesium-citrate/search-terms)
## **Top magnesium citrate products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%£27K10%£53K15%£80K20%£107K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Solgar Magnesium Citrate Tablets - Supports The Nervous System Energy Release Reduces Tiredness and Fatigue - Vegan - 120 Count**Solgar**£12.67**4.5★12,620 rev](https://www.amazon.co.uk/dp/B012T97SDQ) [2**Magnesium Citrate Capsules 1480mg - 240 Capsules - 4 Months Supply**WeightWorld**£12.25**4.5★12,196 rev](https://www.amazon.co.uk/dp/B08BTXFQ4F) [3**Magnesium Glycinate 3-in-1 Complex - 1800mg Supplements as Bisglycinate Citrate & Malate 90 Vegan Capsules Triple High Absorption 384mg Elemental UK Made**Nutrition Geeks**£8.11**4.5★35,795 rev](https://www.amazon.co.uk/dp/B0C9VVCL12) [4**Magnesium Citrate Capsules 1500mg with Vitamin B6 | 120 Vegan Capsules | 450mg Elemental Mg | High Strength Magnesium Supplements for Women & Men | Capsule not Tablets | Made in UK by Prowise**PH PROWISE Healthcare**£7.79**4.5★200 rev](https://www.amazon.co.uk/dp/B0FQVBPVSB) [5**Magnesium Citrate 1 480mg 120 Vegan Capsules 2 Months Supply - Providing 440mg Elemental Magnesium Per Serving - Magnesium Capsules not Magnesium Tablets - High Strength Magnesium Supplement GMO Free**Multivita**£6.71**4.6★292 rev](https://www.amazon.co.uk/dp/B0CSXSZ9SB)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Solgar Magnesium Glycinate - Pack of 60 Capsules - Highly bioavailable Form of Magnesium Designed for Optimal Absorption and Gentle Support**Solgar**£8.81**29 rev4mo ago](https://www.amazon.co.uk/dp/B0GR9QVPDX) [**Hybrid Health Magnesium Citrate 1500mg Supplement - 360 Vegan Capsules High-Strength Formula Independently 3rd Party Lab Tested 6 Months Supply**Hybrid Health**£13.07**3 rev8mo ago](https://www.amazon.co.uk/dp/B0G44X4W6P) [**Magnesium Citrate Capsules 1500mg with Vitamin B6 | 120 Vegan Capsules | 450mg Elemental Mg | High Strength Magnesium Supplements for Women & Men | Capsule not Tablets | Made in UK by Prowise**PH PROWISE Healthcare**£7.79**200 rev10mo ago](https://www.amazon.co.uk/dp/B0FQVBPVSB) [**Magnesium Citrate 1 480mg 120 Vegan Capsules 2 Months Supply - Providing 440mg Elemental Magnesium Per Serving - Magnesium Capsules not Magnesium Tablets - High Strength Magnesium Supplement GMO Free**Multivita**£6.71**292 rev2y ago](https://www.amazon.co.uk/dp/B0CSXSZ9SB) [**Magnesium Citrate 600mg 180mg Elemental Magnesium 90 Vegan Capsules Daily Supplement Made in Britain SMUG Supplements**SMUG Supplements**£4.01**175 rev2y ago](https://www.amazon.co.uk/dp/B0CM3WHFJT)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Solgar Magnesium Glycinate - Pack of 60 Capsules - Highly bioavailable Form of Magnesium Designed for Optimal Absorption and Gentle Support**Solgar**£8.81**4.9★**▲ 366%**](https://www.amazon.co.uk/dp/B0GR9QVPDX) [**Magnesium Citrate Capsules | 1650mg High Strength Complex with Oxide | 500mg Elemental Magnesium | 4 Months Supply | 240 Vegan Capsules (Not Tablets) | High Absorption | by Horbaach**Horbäach**£5.54**4.4★**▲ 323%**](https://www.amazon.co.uk/dp/B0815T7N23) [**Hybrid Health Magnesium Citrate 1500mg Supplement - 360 Vegan Capsules High-Strength Formula Independently 3rd Party Lab Tested 6 Months Supply**Hybrid Health**£13.07**5.0★**▲ 225%**](https://www.amazon.co.uk/dp/B0G44X4W6P) [**DR.VEGAN Daily Magnesium Citrate 400mg of Elemental Magnesium | Support Healthy Bones and Muscles | 60 Vegan Capsules | 2-A-Day**dr vegan**£7.41**4.5★**▲ 87%**](https://www.amazon.co.uk/dp/B08ML2ZGRQ) [**Natures Aid Magnesium Citrate 750mg with Vitamin B6 High Absorption Vegan Capsules Supports Muscle Nerve & Bone Health and Stress Relief Non-GMO Gluten-Free 60 Capsules**Natures Aid**£5.90**4.5★**▲ 47%**](https://www.amazon.co.uk/dp/B083ZKJFMY)
**~~View all trending →~~**
## **What buyers say about magnesium citrate**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**24%
*“HELPS WITH SLEEP”*
**Quality-Overall**15%
*“have always found them to be consistent in quality”*
**Magnesium**11%
*“Best magnesium capsules”*
**Value For Money**10%
*“Excellent value for money”*
**Advertised Vs Actual Product**5%
*“As Advertised”*
**Muscle Pain Relief**4%
*“helps muscle cramps”*
**Ease Of Chewing/Swallowing**3%
*“ease of swallowing”*
**Efficiency**3%
*“Very good does the job”*
**Vitamin**3%
*“Vitamins that work”*
**Ease Of Use**2%
*“Easy to use”*
### **What buyers complain about **
**Sleep Quality**14%
*“Not helping with sleep”*
**Functionality-Overall**9%
*“It does absolutely nothing”*
**Magnesium**8%
*“This magnesium does not work”*
**Acid Regulator/Stomach Ache Relief**6%
*“Gives you stomach cramps”*
**Size-Overall**6%
*“Tablets are so large”*
**Dosage**6%
*“The dosage is far too high”*
**Side Effects**5%
*“Will make you ill”*
**Value For Money**3%
*“Expensive”*
**Quality-Overall**3%
*“Absolutely rubbish”*
**Advertised Vs Actual Product**3%
*“Misleading Product”*
### **Top return reasons **
**Magnesium**50%
**Joint Pain**50%
## **Common questions**
- **Is magnesium citrate profitable to sell on Amazon United Kingdom?**
- The niche generates £534K/yr across 23 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -17.0%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the magnesium citrate niche?**
- 18 brands and 64 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 62% of demand.
- **What do buyers complain about in magnesium citrate?**
- Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Magnesium. The return rate is 0.1%.
- **When does demand for magnesium citrate peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the magnesium citrate niche?**
- Listings span £4.01–£17.01; the average listing price is £9.52 (sweet spot $15–$100). The average incumbent carries 4,974 reviews — the moat a new listing must climb.
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