---
title: "Magnesium Complex — $1.3M/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/magnesium-complex"
last_updated: "2026-08-12T17:22:05.775Z"
locale: en
meta:
description: "Amazon product research for magnesium complex: $1.3M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for magnesium complex: $1.3M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Magnesium Complex — $1.3M/mo Amazon US Product Research"
---
# **Magnesium Complex**
**Worth a look**
Shows a $16.2M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 22Conversion 74Competition 47Returns 100Price range 77Avg price 87Brand share 77Review moat 20Quality gap 22
**Market size**
**Incredible****$16.2M**
$16.2M/yr · 11.8M searches
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$19.78**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****58%**
top-5 brand share — no brand owns this niche
**Price range**
**Great****$8.74–$36.67**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****6.9%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-5.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****13,860.6**
avg incumbent reviews — the moat a new listing must climb
## **Is magnesium complex profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, magnesium complex is a $16.2M/yr Amazon United States market (11.8M searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Jul. Verdict: Worth a look — 62/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium complex market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **800K–1.0M**
- avg 30,000–40,000/product
- **Revenue / yr**
- **$15.8M–$19.8M**
- units × avg price
- **Conversion rate**
- **6.9%**
- **Avg BSR**
- **#112**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.7%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **144 days**
## **Competition: brands, sellers & click share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▼falling
**Sellers**
**74**
**Top-5 brand share**
**58%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 100%
**Open market**
**37%**
- Toplux30% - Vitalibre9% - VEV6% - Nutricost6% - Micro Ingredients6% - BIOptimizers5%
## **magnesium complex demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.9% search growth over the last 90 days.
350K250KBlack Friday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/health-household/magnesium-complex/trend)
## **Top magnesium complex search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **magnesium complex for women**4.4M/yr-8.7%5.0% conv. - **magnesium complex**5.3M/yr-8.2%4.8% conv. - **magnesio complex**924K/yr+3.6%2.3% conv. - **magnesium complex for men**196K/yr+16.3%5.1% conv. - **magnesium sleep aid**85K/yr-33.1%0.7% conv. - **complex magnesium supplement**38K/yr-13.2%3.7% conv. - **magnesium blend**38K/yr+6.4%2.6% conv. - **complejo de magnesio**45K/yr-29.5%2.1% conv. - **magnesium glycinate and citrate**37K/yr-11.4%2.1% conv. - **multi magnesium supplement**37K/yr-2.7%3.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/magnesium-complex/search-terms)
## **Top 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%$1.6M20%$3.2M30%$4.9M40%$6.5M1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Magnesium Complex Supplement 8 Elemental 1000mg - Magnesium Glycinate Citrate Malate Taurate Chelated for Easy Absorption for Bones Muscle Recovery Energy Vegan Non-GMO 90 Capsules**Toplux**$28.46**4.6★6,948 rev](https://www.amazon.com/dp/B0CRY2SVPV) [2**Vitalibre 10 in 1 Magnesium Complex 420mg Elemental Magnesium 120 Capsules**Vitalibre**$10.02**4.7★7,920 rev](https://www.amazon.com/dp/B0DH23CS1J) [3**Nutricost Magnesium Complex Extra Strength 500mg 240 Capsules Gluten Free**Nutricost**$16.56**4.7★4,455 rev](https://www.amazon.com/dp/B09DM4YQJM) [4**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★247 rev](https://www.amazon.com/dp/B0FWJ7TP6X) [5**Nature Made Magnesium Complex Supplement with Vitamin D & Zinc 60 Capsules**Nature Made**$14.89**4.7★3,879 rev](https://www.amazon.com/dp/B0BX7HSL2S)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**1000mg Magnesium Complex 8 in 1 for Women & Men Vegan Magnesium Supplement**BOSNETHUINH**$10.98**186 rev3mo ago](https://www.amazon.com/dp/B0GVG3CPF5) [**Magnesium Complex for Women & Men 500mg (7-in-1) Magnesium Glycinate with Vegan D3 B6 and Manganese (Made In USA) + Gluconate Citrate Malate Taurate Orotate Carbonate (Oxide-Free) Small Capsule**Etta Vita**$26.28**402 rev4mo ago](https://www.amazon.com/dp/B0G4F3GP5S) [**1000mg Magnesium Complex for Women & Men 16 in 1 High Absorption | Glycinate Citrate Malate Taurate | Sleep Nerve Heart Bone Muscle & Energy | Non-GMO Gluten-Free 120 Capsules**Yalvive**$18.34**168 rev4mo ago](https://www.amazon.com/dp/B0GR8CK627) [**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) [**Magnesium Complex 700mg | 12-in-1 High Absorption Supplement | Glycinate Citrate Malate Taurate & More | Sleep Support Muscle Cramp Relief Stress Heart Bone & Nerve Health | 120 Vegan Capsules**Vccvaa**$10.13**2,810 rev1y ago](https://www.amazon.com/dp/B0FHH4CCD9)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**1000mg Magnesium Complex for Women & Men 16 in 1 High Absorption | Glycinate Citrate Malate Taurate | Sleep Nerve Heart Bone Muscle & Energy | Non-GMO Gluten-Free 120 Capsules**Yalvive**$18.34**4.7★**▲ 295%**](https://www.amazon.com/dp/B0GR8CK627) [**1000mg Magnesium Complex 8 in 1 for Women & Men Vegan Magnesium Supplement**BOSNETHUINH**$10.98**4.6★**▲ 285%**](https://www.amazon.com/dp/B0GVG3CPF5) [**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★**▲ 232%**](https://www.amazon.com/dp/B0FWJ7TP6X) [**Magnesium Complex for Women & Men 500mg (7-in-1) Magnesium Glycinate with Vegan D3 B6 and Manganese (Made In USA) + Gluconate Citrate Malate Taurate Orotate Carbonate (Oxide-Free) Small Capsule**Etta Vita**$26.28**4.6★**▲ 193%**](https://www.amazon.com/dp/B0G4F3GP5S) [**VEV DeepCalm 15-in-1 Magnesium Complex for Women & Men Magnesium Supplement Sleep Glycinate & Citrate Vegan Capsules with Ashwagandha & L-Theanine 120 Count**VEV**$13.42**4.6★**▲ 44%**](https://www.amazon.com/dp/B0DFQ6SQ88)
**~~View all trending →~~**
## **What reviews say buyers love and hate about magnesium complex**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**19%
*“Helps me sleep”*
**Magnesium**17%
*“Best Magnesium supplement”*
**Quality-Overall**15%
*“Best quality”*
**Vitamin**5%
*“Best vitamins”*
**Value For Money**5%
*“Great deal”*
**Muscle Pain Relief**3%
*“muscle recovery”*
**Advertised Vs Actual Product**3%
*“Exactly as advertised”*
**Efficiency**3%
*“Works perfectly”*
**Ease Of Chewing/Swallowing**2%
*“Easy to swallow”*
**Ease Of Use**2%
*“Great easy control”*
### **What buyers complain about **
**Sleep Quality**11%
*“Did not help with sleep”*
**Magnesium**11%
*“Low magnesium”*
**Dosage**8%
*“1000mg is too high of dose”*
**Functionality-Overall**6%
*“Did not work”*
**Side Effects**5%
*“intolerant side effect”*
**Acid Regulator/Stomach Ache Relief**5%
*“Extreme bloating”*
**Value For Money**4%
*“OUTRAGEOUS PRICE”*
**Quality-Overall**3%
*“Poor Quality Control”*
**Size-Overall**3%
*“The bottle was small”*
**Pain Relief-Overall**2%
*“Caused me discomfort”*
### **Top return reasons **
**Magnesium**24%
**Functionality-Overall**16%
**Dosage**11%
**Ingredients-Overall**6%
**Acid Regulator/Stomach Ache Relief**6%
**Sleep Quality**6%
**Value For Money**3%
**Size-Overall**3%
**Vitamin**3%
**Side Effects**3%
## **Common magnesium complex questions**
- **Is magnesium complex profitable to sell on Amazon United States?**
- The niche generates $16.2M/yr across 20 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -5.9%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the magnesium complex niche?**
- 18 brands and 74 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 58% of demand.
- **What do buyers complain about in magnesium complex?**
- Top complaints mined from reviews: Sleep Quality, Magnesium, Dosage. The return rate is 0.0%.
- **When does demand for magnesium complex peak?**
- Demand peaks in Jul; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the magnesium complex niche?**
- Listings span $8.74–$36.67; the average listing price is $19.78 (sweet spot $15–$100). The average incumbent carries 13,861 reviews — the moat a new listing must climb.
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