magnesium threonate
Worth a lookShows low returns (0.1%), but soft demand (-22.2% this quarter) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great8.7%search→purchase rate — share of searches ending in a sale
Avg price
Great£17.54avg listing price — sweet spot $15–$100
Price range
Good£7.92–£31.74cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good£563K£563K/yr · 368K searches
Brand share
Good72%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay68%top-5 click share — leaders hold, buyers still browse
Review moat
Bad4,139.19avg incumbent reviews — the moat a new listing must climb
Growth
Bad-22.2%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, magnesium threonate is a £563K/yr Amazon United Kingdom market (368K searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
magnesium threonate market data
- Units sold / yr
- 30K–40K
- avg 2,500–3,000/product
- Revenue / yr
- £526K–£702K
- units × avg price
- Conversion rate
- 8.7%
- Avg BSR
- #302
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 75%
- Out of stock
- 12.4%
- Avg brand age
- 37 months
- Avg seller age
- 168 days
Competition & brand share
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.Brands
14 rising
Sellers
39
Top-5 brand share
72%
Top 20: 100%
Top-5 click share
68%
Top 20: 100%
Open market
24%
- Vinco Supplements40%
- Time Health18%
- ECO-VITS5%
- swiss bioenergetics4%
- Wish Fusion4%
- Double Wood Supplements4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -22.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top magnesium threonate search terms
- magnesium threonate161K/yr
- magnesium l threonate101K/yr
- magnesium l-threonate39K/yr
- magnesium threonate complex9K/yr
- magnesium threonate and glycinate7K/yr
- magnesium glycinate and l threonate5K/yr
- magnesium threonate uk17K/yr
- magnesium l threonate 2000mg4K/yr
- l threonate magnesium4K/yr
- magnesium l-threonate uk9K/yr
Top magnesium threonate 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.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Vinco Magnesium L-Threonate Supplement - 120 High Strength Magnesium L Threonate Capsules - 2000mg Bioavailable Form of Magnesium per Serving - Non-GMO & Gluten Free - Made in The UK
Vinco Supplements£11.954.5★737 rev
Magtein Magnesium Threonate 120 Capsules High Strength 2100mg Pullulan Capsules UK Made to GMP & HACCP Standards Zero Additives
Time Health£22.064.5★1,083 rev
Magnesium L-Threonate 1000mg 60 Tablets Supports Cognitive Function Brain Health & Calm Mind High Absorption
ECO-VITS£7.924.2★33 rev
Wish Fusion Magnesium L-Threonate Complex with L-Theanine Vitamin D3 & C - High Strength Magnesium for Sleep Brain Support Focus & Relaxation Age Related Memory Support for Women Men
Wish Fusion£8.204.7★15 rev
Double Wood Magnesium L Threonate Supplement | 120 Capsules (30 Servings) High Strength Magnesium L Threonate (4 per Serving) 2000mg
Double Wood Supplements£31.744.6★18,625 rev
Newest
by launch dateWish Fusion Magnesium L-Threonate Complex with L-Theanine Vitamin D3 & C - High Strength Magnesium for Sleep Brain Support Focus & Relaxation Age Related Memory Support for Women Men
Wish Fusion£8.2015 rev
Magnesium Threonate 1800mg | 133mg Elemental Magnesium | High Strength L-Threonate Capsules for Brain & Nervous System Support | Vegan Supplement | Raw Powders
Raw Powders£11.616 rev
Vinco Triple Magnesium L-Threonate with L-Theanine & Apigenin 120 Capsules - 3-in-1 Apigenin Threonate Supplements for Sleep & Relaxation - Triple Magnesium Complex Made in The UK
Vinco Supplements£24.0789 rev
Vinco Magnesium L-Threonate Supplement - 120 High Strength Magnesium L Threonate Capsules - 2000mg Bioavailable Form of Magnesium per Serving - Non-GMO & Gluten Free - Made in The UK
Vinco Supplements£11.95737 rev
Life Essentials Magnesium L-Threonate 500mg Capsules - Brain Support Supplement for Memory & Cognitive Function - Superior Absorption - 60 Vegetarian Capsules
Life Essentials£14.7912 rev
Trending
90-day click momentum
MagEnhance Magnesium Complex for Sleep Support - Magtein L-threonate Glycinate & Taurate - Nervous System & Muscle Relaxation Gentle on the Stomach 90 Vegan Capsules 30-Day Supply
Intelligent Labs£20.754.4★
Wish Fusion Magnesium L-Threonate Complex with L-Theanine Vitamin D3 & C - High Strength Magnesium for Sleep Brain Support Focus & Relaxation Age Related Memory Support for Women Men
Wish Fusion£8.204.7★
Nutravita Magnesium Supplements 5-in-1 Complex 1146mg - Which? Best Buy 2025-240 Magnesium Complex Capsules - 400mg Elemental - Bisglycinate Citrate Malate Oxide - Muscles & Sleep Supplement
Nutravita£14.764.6★
Magnesium Threonate 1800mg | 133mg Elemental Magnesium | High Strength L-Threonate Capsules for Brain & Nervous System Support | Vegan Supplement | Raw Powders
Raw Powders£11.614.8★
Hepatica Magnesium Complex | L-Threonate Bisglycinate & Taurate | 226mg Elemental Magnesium (60% NRV) | 120 Vegan Capsules | 3rd Party Lab Tested
Hepatica£16.284.5★
What buyers say about magnesium threonate
What buyers praise and complain about, mined from review topics.What buyers love
“sleep more deeply”
“Good product x”
“best magnesium”
“Excellent value for money”
“As Advertised”
“helps muscle cramps”
“Works perfectly”
“Won't lie, had no issues swallowing the pills, yeah they're big”
“Vitamins, easy to swallow good amount of supply”
“Easy to use”
What buyers complain about
“Not helping with sleep at all”
“This magnesium does not work”
“It does absolutely nothing”
“Caused severe stomach cramps”
“The dosage is far too high”
“only negative effects”
“Quite big tablets”
“Expensive”
“Bad quality control”
“It's not as described”
Top return reasons
Common questions
- Is magnesium threonate profitable to sell on Amazon United Kingdom?
- The niche generates £563K/yr across 16 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -22.2%. Flapen's verdict: Worth a look (52/100).
- How competitive is the magnesium threonate niche?
- 14 brands and 39 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 72% of demand.
- What do buyers complain about in magnesium threonate?
- Top complaints mined from reviews: Sleep Quality, Magnesium, Functionality-Overall. The return rate is 0.1%.
- When does demand for magnesium threonate peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the magnesium threonate niche?
- Listings span £7.92–£31.74; the average listing price is £17.54 (sweet spot $15–$100). The average incumbent carries 4,139 reviews — the moat a new listing must climb.