---
title: "Magnesium L-threonate — $1.3M/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/magnesium-l-threonate"
last_updated: "2026-08-12T16:27:20.417Z"
locale: en
meta:
description: "Amazon product research for magnesium l-threonate: $1.3M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for magnesium l-threonate: $1.3M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Magnesium L-threonate — $1.3M/mo Amazon US Product Research"
---
# **Magnesium L-threonate**
**Worth a look**
Shows a $15.2M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 22Conversion 84Competition 33Returns 100Price range 94Avg price 95Brand share 51Review moat 24Quality gap 22
**Market size**
**Incredible****$15.2M**
$15.2M/yr · 4.5M searches
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$36.32**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.11–$84.91**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****9.3%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****75%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****65%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****4,962.64**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-6.0%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
## **Is magnesium l-threonate profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, magnesium l-threonate is a $15.2M/yr Amazon United States market (4.5M searches/yr). The top 5 brands hold 75% of demand. Verdict: Worth a look — 60/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium l-threonate market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **400K–500K**
- avg 20,000–25,000/product
- **Revenue / yr**
- **$14.5M–$18.2M**
- units × avg price
- **Conversion rate**
- **9.3%**
- **Avg BSR**
- **#240**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **91%**
- **Out of stock**
- **4.2%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **151 days**
## **Competition: brands, sellers & click share**
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▲rising
**Sellers**
**63**
**Top-5 brand share**
**75%**
Top 20: 100%
**Top-5 click share**
**65%**
Top 20: 98%
**Open market**
**22%**
- Double Wood Supplements23% - Life Extension22% - Sports Research14% - KAPPA NUTRITION9% - NOW Foods7% - Nature Made4%
## **magnesium l-threonate demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -6.0% search growth over the last 90 days.
100K60KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/health-household/magnesium-l-threonate/trend)
## **Top magnesium l-threonate search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **magnesium l-threonate**2.1M/yr-6.2%8.4% conv. - **magnesium threonate**1.0M/yr-18.8%6.9% conv. - **magnesium l threonate**264K/yr+41.2%5.1% conv. - **magtein**207K/yr-10.1%8.9% conv. - **magnesium threonate supplement**138K/yr+1.3%6.4% conv. - **treonato de magnesio**136K/yr-22.1%2.0% conv. - **magtein magnesium l-threonate**118K/yr-6.3%10.7% conv. - **l threonate magnesium**56K/yr+1.1%4.9% conv. - **magnesium threonate and glycinate**37K/yr+51.2%2.4% conv. - **magnesio treonato**55K/yr-12.3%1.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/magnesium-l-threonate/search-terms)
## **Top magnesium l-threonate products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$1.5M20%$3.0M30%$4.5M40%$6.1M1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Magnesium L Threonate Magtein - NSF Certified - Sleep and Cognitive Support High Absorption Most Bioavailable Form of Magnesium 2 000 mg 120 Capsules**Double Wood Supplements**$29.00**4.6★19,388 rev](https://www.amazon.com/dp/B01M4GM9R1) [2**Life Extension Neuro-Mag Magnesium L-Threonate Memory Health Quick Thinking Cognitive Health Support Vegetarian Non-GMO 90 Vegetarian Capsules (144 mg from 2000 mg Magtein magnesium L-threonate**Life Extension**$29.01**4.6★24,338 rev](https://www.amazon.com/dp/B006P536E6) [3**Sports Research Magnesium L-Threonate 2000mg w/Magtein 90 Count**Sports Research**$28.35**4.8★2,673 rev](https://www.amazon.com/dp/B0B336FCWC) [4**Kappa Nutrition Powered by Magbrain Magnesium L-Threonate Plant-Based 420mg Elemental Magnesium (3 Capsules) from 2 253mg 120 Vegan Capsules Brain Sleep & Muscle Support.**KAPPA NUTRITION**$26.18**4.7★6,509 rev](https://www.amazon.com/dp/B08MTNZH1L) [5**NOW Foods Supplements Magtein with patented form of Magnesium (Mg) Cognitive Support* 90 Veg Capsules**NOW Foods**$29.34**4.6★7,361 rev](https://www.amazon.com/dp/B00JEZQAFG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Qunol Q-Mag Magnesium L-Threonate Tablets 2000mg of Magtein to Help Support Cognitive Performance Improve Mental Alertness & Productivity Supports Restful Sleep High Absorption 60 Count**Qunol**$31.47**259 rev9mo ago](https://www.amazon.com/dp/B0FY7R158H) [**Vocks Magnesium L-Threonate 2000 mg | Brain Magnesium for Memory Focus Sleep Anxiety and Cognitive Support | Vegan Non-GMO Gluten-Free | Third-Party Tested for Purity | 90 Count**Vocks**$15.69**260 rev1y ago](https://www.amazon.com/dp/B0FB9KBJXC) [**Magnesium L-Threonate Plant-Based 3 in 1 Powered by Magbrain Magnesium L-Threonate Plant-Based | Magnesium Bisglycinate & Magnesium Malate | Up to 420 mg Elemental Magnesium | 60 Vegan Capsules.**KAPPA NUTRITION**$14.11**6,509 rev1y ago](https://www.amazon.com/dp/B0DQVP7MQG) [**Sports Research Magnesium L-Threonate 2000mg w/Magtein 180 Count**Sports Research**$54.49**2,673 rev2y ago](https://www.amazon.com/dp/B0CDP398C6) [**Now Foods Supplements Magtein Magnesium L-Threonate Cognitive Support* 180 Veg Capsules**NOW Foods**$53.69**7,361 rev2y ago](https://www.amazon.com/dp/B0CFS267GP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Magnesium L-Threonate Plant-Based 3 in 1 Powered by Magbrain Magnesium L-Threonate Plant-Based | Magnesium Bisglycinate & Magnesium Malate | Up to 420 mg Elemental Magnesium | 90 Vegan Capsules.**KAPPA NUTRITION**$21.50**4.7★**▲ 85%**](https://www.amazon.com/dp/B09TGTBQQ6) [**Kappa Nutrition Powered by Magbrain Magnesium L-Threonate Plant-Based 420mg Elemental Magnesium (3 Capsules) from 2 253mg 120 Vegan Capsules Brain Sleep & Muscle Support.**KAPPA NUTRITION**$26.18**4.7★**▲ 56%**](https://www.amazon.com/dp/B08MTNZH1L) [**MagEnhance Magnesium Complex Magtein L-Threonate Glycinate for Sleep**Intelligent Labs**$29.35**4.6★**▲ 53%**](https://www.amazon.com/dp/B073WZ9SM3) [**Vocks Magnesium L-Threonate 2000 mg | Brain Magnesium for Memory Focus Sleep Anxiety and Cognitive Support | Vegan Non-GMO Gluten-Free | Third-Party Tested for Purity | 90 Count**Vocks**$15.69**4.6★**▲ 53%**](https://www.amazon.com/dp/B0FB9KBJXC) [**Metagenics Magnesium L-Threonate - Magtein Magnesium for Brain Health Memory Learning & Cognitive Support - Clinically Studied Bioavailable Form - Non-GMO Gluten-Free Vegan - 120 Capsules**Metagenics**$68.57**4.6★**▲ 50%**](https://www.amazon.com/dp/B0847CVW69)
**~~View all trending →~~**
## **What reviews say buyers love and hate about magnesium l-threonate**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**24%
*“HELP WITH SLEEP”*
**Quality-Overall**17%
*“The quality seems solid”*
**Magnesium**13%
*“Best magnesium I have ever taken”*
**Value For Money**6%
*“Great value”*
**Vitamin**6%
*“They also have supported vitamin”*
**Efficiency**4%
*“Works well”*
**Advertised Vs Actual Product**4%
*“Accurate description”*
**Focus Enhancement**4%
*“I really consider it helps my focus”*
**Soothing Effect**1%
*“it does help me relax”*
**Joint Pain**1%
*“And it does relieve the leg cramps”*
### **What buyers complain about **
**Sleep Quality**14%
*“Didnt help with sleep”*
**Magnesium**8%
*“there might be a magnesium deficiency present”*
**Dosage**7%
*“Unclear dosage instructions”*
**Value For Money**7%
*“Too expensive”*
**Side Effects**7%
*“Horrible side effect”*
**Functionality-Overall**6%
*“Not Effective”*
**Quality-Overall**4%
*“Poor Quality Control”*
**Size-Overall**3%
*“The capsules are very large”*
**Certifications**3%
*“Not NSF Certified”*
**Advertised Vs Actual Product**2%
*“False advertising”*
### **Top return reasons **
**Functionality-Overall**21%
**Magnesium**17%
**Value For Money**13%
**Sleep Quality**13%
**Dosage**4%
**Heart Health**4%
**Ingredients-Overall**4%
**Fever Relief**4%
**Product Condition**4%
**Vegan/Organic**4%
## **Common magnesium l-threonate questions**
- **Is magnesium l-threonate profitable to sell on Amazon United States?**
- The niche generates $15.2M/yr across 22 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -6.0%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the magnesium l-threonate niche?**
- 18 brands and 63 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in magnesium l-threonate?**
- Top complaints mined from reviews: Sleep Quality, Magnesium, Dosage. The return rate is 0.0%.
- **When does demand for magnesium l-threonate peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the magnesium l-threonate niche?**
- Listings span $14.11–$84.91; the average listing price is $36.32 (sweet spot $15–$100). The average incumbent carries 4,963 reviews — the moat a new listing must climb.
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