---
title: "Just Ingredients Magnesium Complex — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/just-ingredients-magnesium-complex"
last_updated: "2026-08-12T13:25:22.203Z"
locale: en
meta:
description: "Amazon product research for just ingredients magnesium complex: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for just ingredients magnesium complex: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Just Ingredients Magnesium Complex — Amazon US Product Research"
---
# **Just Ingredients Magnesium Complex**
**Skip it**
A small market ($16K/yr) — this niche doesn't clear our bar today.
Market size 4Growth 95Conversion 28Competition 23Returns 100Price range 95Avg price 95Brand share 38Review moat 22Quality gap 19
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+121.5%**
90-day search growth — must beat 0% to launch
**Avg price**
**Incredible****$26.21**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$15.49–$48.47**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****2.2%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****9,373.43**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$16K**
$16K/yr · 27K searches
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
## **Is just ingredients magnesium complex profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, just ingredients magnesium complex is a $16K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 47/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **just ingredients magnesium complex market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–2K**
- avg 250–500/product
- **Revenue / yr**
- **$39K–$52K**
- units × avg price
- **Conversion rate**
- **2.2%**
- **Avg BSR**
- **#191**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **5.8%**
- **Avg brand age**
- **65 months**
- **Avg seller age**
- **160 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**11 **▼falling
**Sellers**
**550**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**72%**
Top 20: 100%
**Open market**
**14%**
- JUST INGREDIENTS32% - BIOptimizers18% - Micro Ingredients16% - THORNE10% - Pure Encapsulations7% - Sports Research4% - Open — no brand owns it (5 brands, 14%)
## **Top just ingredients magnesium complex 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%$2K20%$3K30%$5K40%$6K1001K10K100K 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**JUST INGREDIENTS Magnesium Complex - Five Bioavailable Forms for Relaxation Sleep Mood Support - 60 Capsules**JUST INGREDIENTS**$48.47**4.7★128 rev](https://www.amazon.com/dp/B0FK6K63TR) [2**BIOptimizers Magnesium Breakthrough Supplement with 500mg - 7 Forms of Magnesium: Glycinate Malate Citrate and More - Natural Support for Sleep and Cognitive Function -30 Capsules- Calming Vitamins**BIOptimizers**$20.61**4.6★18,865 rev](https://www.amazon.com/dp/B09R2DCRMY) [3**THORNE - Magnesium Glycinate - Supports Restful Sleep Muscle Relaxation Heart Health & Metabolism* - Chelated Magnesium Capsules - Third-Party Certified - Gluten Dairy & Soy-Free - 90 Servings**THORNE**$25.39**4.7★2,847 rev](https://www.amazon.com/dp/B0F5XYHRPV) [4**Micro Ingredients Pure Magnesium Complex 300 Capsules | Triple Magnesium Glycinate Malate Taurate with Vitamin C | 100% Chelated | Supports Muscles Nerves & Energy | Only Active Ingredients**Micro Ingredients**$23.71**4.8★902 rev](https://www.amazon.com/dp/B0DLLHGKDM) [5**Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Glycinate - 90 Capsules**Pure Encapsulations**$26.10**4.7★49,969 rev](https://www.amazon.com/dp/B07P5K7DQP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Sports Research Triple Magnesium Complex 300mg 120 Veggie Capules**Sports Research**$23.24**148 rev5mo ago](https://www.amazon.com/dp/B0GND6KPG6) [**Magnesium Complex for Women | Glycinate Citrate & More 20-in-1 Formula with D3 K2 (MK-7) B6 (as P5P) & Ashwagandha | 240 Vegetarian Capsules Filler Free Non-GMO**Micro Ingredients**$23.46**247 rev9mo ago](https://www.amazon.com/dp/B0FWJ7TP6X) [**Micro Ingredients 12in1 Magnesium Complex 1000 mg 240 Capsules Magnesium Glycinate Citrate Taurate Malate & More High Absorption Formula for Men & Women Chelated & Purified**Micro Ingredients**$18.98**161 rev9mo ago](https://www.amazon.com/dp/B0FWHZSWHP) [**JUST INGREDIENTS Magnesium Complex - Five Bioavailable Forms for Relaxation Sleep Mood Support - 60 Capsules**JUST INGREDIENTS**$48.47**128 rev1y ago](https://www.amazon.com/dp/B0FK6K63TR) [**THORNE - Magnesium Glycinate - Supports Restful Sleep Muscle Relaxation Heart Health & Metabolism* - Chelated Magnesium Capsules - Third-Party Certified - Gluten Dairy & Soy-Free - 90 Servings**THORNE**$25.39**2,847 rev1y ago](https://www.amazon.com/dp/B0F5XYHRPV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Sports Research Triple Magnesium Complex 300mg 120 Veggie Capules**Sports Research**$23.24**4.8★**▲ 266%**](https://www.amazon.com/dp/B0GND6KPG6) [**New Chapter Magnesium Complex - Offers Muscle Bone Heart & Energy Support* - Contains Sea-Sourced Fermented & Bisglycinate Forms of Magnesium - Non-GMO Gluten Free - 325 mg Magnesium - 60 Tablets**New Chapter**$15.62**4.8★**▲ 259%**](https://www.amazon.com/dp/B0DK7WJT1M) [**Micro Ingredients 12in1 Magnesium Complex 1000 mg 240 Capsules Magnesium Glycinate Citrate Taurate Malate & More High Absorption Formula for Men & Women Chelated & Purified**Micro Ingredients**$18.98**4.7★**▲ 233%**](https://www.amazon.com/dp/B0FWHZSWHP) [**Magnesium Complex for Women | Glycinate Citrate & More 20-in-1 Formula with D3 K2 (MK-7) B6 (as P5P) & Ashwagandha | 240 Vegetarian Capsules Filler Free Non-GMO**Micro Ingredients**$23.46**4.6★**▲ 230%**](https://www.amazon.com/dp/B0FWJ7TP6X) [**Designs for Health Magnesium Glycinate Complex - High Absorption Patented Magnesium Complex - Promotes Calm Sleep Energy Bone & Heart Health and Immune Support - Vegan Gluten Free (120 Capsules)**Designs for Health**$33.96**4.6★**▲ 181%**](https://www.amazon.com/dp/B000FGWBK6)
**~~View all trending →~~**
## **What reviews say buyers love and hate about just ingredients magnesium complex**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**23%
*“Great night sleep”*
**Quality-Overall**18%
*“Amazing quality”*
**Magnesium**15%
*“Best magnesium supplement that I have taken”*
**Vitamin**5%
*“very useful and effective vitamins”*
**Efficiency**3%
*“The first bottle worked well”*
**Value For Money**3%
*“Great buy”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Stress/Anxiety**2%
*“less stress”*
**Muscle Pain Relief**2%
*“Helps with muscle spasms”*
**Ease Of Chewing/Swallowing**2%
*“these capsules feel smooth”*
### **What buyers complain about **
**Sleep Quality**13%
*“This does not help me sleep”*
**Magnesium**7%
*“I must not be able to tolerate magnesium”*
**Dosage**7%
*“A little low on mg”*
**Side Effects**6%
*“intolerant side effect”*
**Size-Overall**5%
*“Too Big”*
**Value For Money**5%
*“Waste of money”*
**Functionality-Overall**5%
*“in my case it just didnt stand out as particularly effective”*
**Acid Regulator/Stomach Ache Relief**5%
*“Upset stomach”*
**Quality-Overall**4%
*“Poor quality control”*
**Ease Of Chewing/Swallowing**2%
*“I could not swallow”*
### **Top return reasons **
**Magnesium**20%
**Functionality-Overall**12%
**Acid Regulator/Stomach Ache Relief**10%
**Dosage**9%
**Value For Money**8%
**Sleep Quality**8%
**Size-Overall**5%
**Advertised Vs Actual Product**4%
**Ingredients-Overall**4%
**Vitamin**3%
## **Common just ingredients magnesium complex questions**
- **Is just ingredients magnesium complex profitable to sell on Amazon United States?**
- The niche generates $16K/yr across 14 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is +121.5%. Flapen's verdict: Skip it (47/100).
- **How competitive is the just ingredients magnesium complex niche?**
- 11 brands and 550 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in just ingredients magnesium complex?**
- Top complaints mined from reviews: Sleep Quality, Magnesium, Dosage. The return rate is 0.0%.
- **What does it cost to enter the just ingredients magnesium complex niche?**
- Listings span $15.49–$48.47; the average listing price is $26.21 (sweet spot $15–$100). The average incumbent carries 9,373 reviews — the moat a new listing must climb.
## **Related niches to research next**
Same-category niches scoring near this one — the next ones worth researching.
- 76 [**cedar oil**](https://flapen.com/research/us/health-household/cedar-oil)$1.2M/yr+214.4%**Launch it**- 77 [**nutrapure glp1 cutting mix**](https://flapen.com/research/us/health-household/nutrapure-glp1-cutting-mix)$149K/yr+940.2%**Worth a look**- 77 [**dexcom g7**](https://flapen.com/research/us/health-household/dexcom-g7)$2.0M/yr+39.9%**Launch it**- 77 [**purelia**](https://flapen.com/research/us/health-household/purelia)$635K/yr+359.7%**Worth a look**- 77 [**graduation napkins**](https://flapen.com/research/us/health-household/graduation-napkins)$302K/yr+385.7%**Worth a look**- 77 [**credit card wand**](https://flapen.com/research/us/health-household/credit-card-wand)$418K/yr+101.3%**Worth a look**[**All Health & Household niches **](https://flapen.com/research/us/health-household)