---
title: "Magnesium Glycinate Powder — £152K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/magnesium-glycinate-powder"
last_updated: "2026-07-31T18:52:58.386Z"
locale: en
meta:
description: "Niche score 42/100 · £152K/yr market · 176K searches/yr · £8.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · £152K/yr market · 176K searches/yr · £8.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Magnesium Glycinate Powder — £152K/yr Amazon UK Niche (2026) - Flapen"
---
# **magnesium glycinate powder**
**Skip it**
Prices mostly outside the sweet spot ($3.44–$15.37) — this niche doesn't clear our bar today.
Market size 32Growth 4Conversion 89Competition 24Returns 100Price range 3Avg price 23Brand share 55Review moat 25Quality gap 57
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****10.4%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****£152K**
£152K/yr · 176K searches
**Review moat**
**Bad****4,634.79**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****71%**
top-5 click share — a locked-up shelf
**Avg price**
**Bad****£8.31**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-41.5%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£3.44–£15.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, magnesium glycinate powder is a £152K/yr Amazon United Kingdom market (176K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Jul–Oct. Verdict: Skip it — 42/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium glycinate powder market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£125K–£166K**
- units × avg price
- **Conversion rate**
- **10.4%**
- **Avg BSR**
- **#60**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **86%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **33 months**
- **Avg seller age**
- **163 days**
## **Competition & brand share**
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**13 **▲rising
**Sellers**
**65**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**71%**
Top 20: 100%
**Open market**
**22%**
- Nutrition Geeks33% - Wish Fusion14% - PharmaZen10% - Sleep Oracles8% - BetterYou7% - Natral6%
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — -41.5% search growth over the last 90 days.
25K15KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Oct · busiest ÷ quietest = 5.7×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/magnesium-glycinate-powder/trend)
## **Top magnesium glycinate powder search terms**
- **magnesium for sleep**58K/yr-44.1%8.3% conv. - **magnesium sleep**48K/yr-37.2%8.9% conv. - **magnesium for sleep for adults**22K/yr-38.8%10.0% conv. - **magnesium supplements for sleep**19K/yr-49.3%6.0% conv. - **magnesium tablets for sleep**9K/yr-43.1%8.2% conv. - **sleep magnesium**8K/yr-32.1%10.1% conv. - **magnesium night time**5K/yr-23.9%10.8% conv. - **magnesium sleep supplements**5K/yr-74.7%7.5% conv. - **best magnesium for sleeping**3K/yr-49.1%1.8% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/magnesium-glycinate-powder/search-terms)
## **Top magnesium glycinate powder 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%10%£15K20%£30K30%£46K40%£61K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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) [2**Magnesium Glycinate 7 in 1-2400mg Magnesium Supplements to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Citrate Malate Taurate - 120 Capsules**Wish Fusion**£6.56**4.6★1,134 rev](https://www.amazon.co.uk/dp/B0DZ13GWXH) [3**Magnesium Glycinate High Strength 1500mg - High Absorption Easy to Digest - UK Made Supplement for Sleep & Energy - Mag Bisglycinate with Vitamin B6 Tablets - 300mg Elemental Magnesium - 60 Capsules**PharmaZen**£6.31**4.5★1,739 rev](https://www.amazon.co.uk/dp/B0FFV93PFJ) [4**Sleep Oracles Sleep Aid | 600mg Magnesium Glycinate with L-Theanine Passionflower & Valerian Root Relaxation & Sleep Support Blend | Vegan & Gluten Free Night-Time Supplement for Adults | 60 Capsules**Sleep Oracles**£9.89**4.5★376 rev](https://www.amazon.co.uk/dp/B0GF9K4XNP) [5**Magnesium Glycinate 4-in-1 Complex High Absorption Magnesium for Sleep Muscle Function & Relaxation 60 Vegan Caspules with Malate Citrate & Oxide**Natral**£5.20**4.6★208 rev](https://www.amazon.co.uk/dp/B0D47V71ZF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Sleep Oracles Sleep Aid | 600mg Magnesium Glycinate with L-Theanine Passionflower & Valerian Root Relaxation & Sleep Support Blend | Vegan & Gluten Free Night-Time Supplement for Adults | 60 Capsules**Sleep Oracles**£9.89**376 rev6mo ago](https://www.amazon.co.uk/dp/B0GF9K4XNP) [**Nootro Essentials Magnesium Glycinate Capsules with Vitamin B Complex for Sleep Calm & Muscle Support Vegan (60 Servings - 2 Capsules Daily 2 Month Supply)**Nootro Labs**£10.60**182 rev1y ago](https://www.amazon.co.uk/dp/B0FGXZBRX4) [**Magnesium Glycinate High Strength 1500mg - High Absorption Easy to Digest - UK Made Supplement for Sleep & Energy - Mag Bisglycinate with Vitamin B6 Tablets - 300mg Elemental Magnesium - 60 Capsules**PharmaZen**£6.31**1,739 rev1y ago](https://www.amazon.co.uk/dp/B0FFV93PFJ) [**Healthspan Magnesium Glycinate 1500mg | Unwind at Bedtime | Reduces Tiredness & Fatigue | Maintains Normal Muscle & Psychological Function | Gentle on Your Stomach | Vegan (120 Tablets)**Healthspan**£9.18**201 rev1y ago](https://www.amazon.co.uk/dp/B0F48J7XMR) [**Magnesium Glycinate 7 in 1-2400mg Magnesium Supplements to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Citrate Malate Taurate - 120 Capsules**Wish Fusion**£6.56**1,134 rev1y ago](https://www.amazon.co.uk/dp/B0DZ13GWXH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Sleep Oracles Sleep Aid | 600mg Magnesium Glycinate with L-Theanine Passionflower & Valerian Root Relaxation & Sleep Support Blend | Vegan & Gluten Free Night-Time Supplement for Adults | 60 Capsules**Sleep Oracles**£9.89**4.5★**▲ 158%**](https://www.amazon.co.uk/dp/B0GF9K4XNP) [**Magnesium Glycinate 4-in-1 Complex High Absorption Magnesium for Sleep Muscle Function & Relaxation 60 Vegan Caspules with Malate Citrate & Oxide**Natral**£5.20**4.6★**▲ 122%**](https://www.amazon.co.uk/dp/B0D47V71ZF) [**Healthspan Magnesium Glycinate 1500mg | Unwind at Bedtime | Reduces Tiredness & Fatigue | Maintains Normal Muscle & Psychological Function | Gentle on Your Stomach | Vegan (120 Tablets)**Healthspan**£9.18**4.5★**▲ 106%**](https://www.amazon.co.uk/dp/B0F48J7XMR) [**Magnesium Supplements Tablets**Vitabiotics Ultra**£3.44**4.6★**▲ 73%**](https://www.amazon.co.uk/dp/B00LNDGDDG) [**Nootro Essentials Magnesium Glycinate Capsules with Vitamin B Complex for Sleep Calm & Muscle Support Vegan (60 Servings - 2 Capsules Daily 2 Month Supply)**Nootro Labs**£10.60**4.4★**▲ 67%**](https://www.amazon.co.uk/dp/B0FGXZBRX4)
**~~View all trending →~~**
## **What buyers say about magnesium glycinate powder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**32%
*“HELPS WITH SLEEP”*
**Quality-Overall**15%
*“the quality is always consistent”*
**Value For Money**9%
*“Excellent value for money”*
**Magnesium**8%
*“Best Magnesium Supplement”*
**Advertised Vs Actual Product**5%
*“As Advertised”*
**Muscle Pain Relief**3%
*“Improved my muscle spasms greatly”*
**Efficiency**3%
*“Effective: They do exactly what I bought them for”*
**Vitamin**2%
*“Vitamins, easy to swallow good amount of supply”*
**Ease Of Chewing/Swallowing**2%
*“i've found no problem in swallowing them”*
**Ease Of Use**2%
*“Easy to use”*
### **What buyers complain about **
**Sleep Quality**19%
*“No sleep”*
**Functionality-Overall**9%
*“Did not work”*
**Magnesium**8%
*“It is not your ordinary magnesium”*
**Dosage**5%
*“The dosage is far too high”*
**Acid Regulator/Stomach Ache Relief**5%
*“Gives you stomach cramps”*
**Size-Overall**4%
*“Big size”*
**Side Effects**4%
*“However, I have had some uncomfortable side effects:”*
**Allergies**3%
*“Allergic reaction”*
**Quality-Overall**3%
*“not as good as expected”*
**Value For Money**3%
*“Expensive”*
### **Top return reasons **
**Magnesium**50%
**Joint Pain**50%
## **Common questions**
- **Is magnesium glycinate powder profitable to sell on Amazon United Kingdom?**
- The niche generates £152K/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -41.5%. Flapen's verdict: Skip it (42/100).
- **How competitive is the magnesium glycinate powder niche?**
- 13 brands and 65 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in magnesium glycinate powder?**
- Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Magnesium. The return rate is 0.1%.
- **When does demand for magnesium glycinate powder peak?**
- Demand peaks in Jul–Oct; the busiest month runs 5.7× the quietest.
- **What does it cost to enter the magnesium glycinate powder niche?**
- Listings span £3.44–£15.37; the average listing price is £8.31 (sweet spot $15–$100). The average incumbent carries 4,635 reviews — the moat a new listing must climb.
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