---
title: "Magnesium Glycinate 120 Mg — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/magnesium-glycinate-120-mg"
last_updated: "2026-08-12T18:26:18.565Z"
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description: "Amazon product research for magnesium glycinate 120 mg: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for magnesium glycinate 120 mg: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Magnesium Glycinate 120 Mg — Amazon US Product Research"
---
# **Magnesium Glycinate 120 Mg**
**Skip it**
Soft demand (-29.7% this quarter) — this niche doesn't clear our bar today.
Market size 37Growth 10Conversion 83Competition 24Returns 100Price range 80Avg price 90Brand share 47Review moat 22Quality gap 23
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$20.88**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$7.92–$45.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****77%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$187K**
$187K/yr · 101K searches
**Competition**
**Bad****71%**
top-5 click share — a locked-up shelf
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****9,201.14**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-29.7%**
90-day search growth — must beat 0% to launch
## **Is magnesium glycinate 120 mg profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, magnesium glycinate 120 mg is a $187K/yr Amazon United States market (101K searches/yr). The top 5 brands hold 77% of demand. Verdict: Skip it — 45/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium glycinate 120 mg market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **3K–4K**
- avg 250–500/product
- **Revenue / yr**
- **$63K–$84K**
- units × avg price
- **Conversion rate**
- **8.9%**
- **Avg BSR**
- **#448**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **5.6%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **167 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**12 **▼falling
**Sellers**
**41**
**Top-5 brand share**
**77%**
Top 20: 100%
**Top-5 click share**
**71%**
Top 20: 100%
**Open market**
**18%**
- Pure Encapsulations37% - Built by Nature17% - NatureYours12% - Trace Minerals6% - Nature's Bounty5% - Qunol5%
## **magnesium glycinate 120 mg demand & seasonality**
Weekly Amazon search volume, last 8 weeks — -29.7% search growth over the last 90 days.
2K1KJun '26Jun '26Jun '26Jun '26Jul '26Jul '26Jul '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/magnesium-glycinate-120-mg/trend)
## **Top magnesium glycinate 120 mg search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **magnesium glycinate 120 mg**91K/yr-33.4%4.0% conv. - **magnesium glycinate 120mg**5K/yr+19.9%9.8% conv. - **magnesium glycinate 120 mg capsules**5K/yr-18.5%12.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/magnesium-glycinate-120-mg/search-terms)
## **Top magnesium glycinate 120 mg 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%$19K20%$37K30%$56K40%$75K101001K10K100K 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**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) [2**Built By Nature Magnesium Glycinate Supplement 120 mg 90 Capsules**Built by Nature**$10.33**4.4★70 rev](https://www.amazon.com/dp/B0DXRRGNHW) [3**Magnesium Glycinate 120mg Capsules by NatureYours High Absorption Formula Supports Muscle & Bone Health Non-GMO Sugar-Free 90 Veggie Capsules (90-Day Supply)**NatureYours**$7.92**4.5★57 rev](https://www.amazon.com/dp/B0DP24GQ1Y) [4**Natures Bounty High Absorption Magnesium Glycinate 240 mg for Supporting Muscle Relaxation and Bone Heart & Nerve Health Non-GMO Gluten-Free Vegetarian 120 Count/60 Servings**Nature's Bounty**$15.65**4.7★5,675 rev](https://www.amazon.com/dp/B0DT1JKGPH) [5**Qunol Magnesium Glycinate Gummies 120mg of Magnesium Glycinate High Absorption Mixed Berry 90 Count (Pack of 1)**Qunol**$23.00**4.4★1,230 rev](https://www.amazon.com/dp/B0F71N2W5G)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Lunakai USA Made Pure Magnesium Glycinate Capsules 120mg Elemental with B6 (P-5-P) High Absorption Magnesium Supplement for Women & Men - Daily Sleep & Muscle Support Non-GMO 90ct**Lunakai**$17.99**40 rev5mo ago](https://www.amazon.com/dp/B0GMK73Y7Q) [**Qunol Magnesium Glycinate Gummies 120mg of Magnesium Glycinate High Absorption Mixed Berry 90 Count (Pack of 1)**Qunol**$23.00**1,230 rev1y ago](https://www.amazon.com/dp/B0F71N2W5G) [**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) [**Natures Bounty High Absorption Magnesium Glycinate 240 mg for Supporting Muscle Relaxation and Bone Heart & Nerve Health Non-GMO Gluten-Free Vegetarian 120 Count/60 Servings**Nature's Bounty**$15.65**5,675 rev1y ago](https://www.amazon.com/dp/B0DT1JKGPH) [**Built By Nature Magnesium Glycinate Supplement 120 mg 90 Capsules**Built by Nature**$10.33**70 rev1y ago](https://www.amazon.com/dp/B0DXRRGNHW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Lunakai USA Made Pure Magnesium Glycinate Capsules 120mg Elemental with B6 (P-5-P) High Absorption Magnesium Supplement for Women & Men - Daily Sleep & Muscle Support Non-GMO 90ct**Lunakai**$17.99**4.9★**▲ 119%**](https://www.amazon.com/dp/B0GMK73Y7Q) [**Dr. Berg Magnesium Glycinate 90ct 4-in-1 Chelated for Muscle Nerve Sleep & Stress Support* w/ D3 B6 & Zinc 4X Lab-Tested No Fillers Formulated in USA GMP-Certified**Dr. Berg Nutritionals**$19.97**4.7★**▲ 48%**](https://www.amazon.com/dp/B0DQYPK6PY) [**Magnesium Glycinate 120mg Capsules by NatureYours High Absorption Formula Supports Muscle & Bone Health Non-GMO Sugar-Free 90 Veggie Capsules (90-Day Supply)**NatureYours**$7.92**4.5★**▲ 35%**](https://www.amazon.com/dp/B0DP24GQ1Y) [**Life Extension Magnesium Glycinate Heart Health Bone Health Nerve and Muscle Support Highly absorbable Gluten-Free Non-GMO Vegetarian 90 Capsules**Life Extension**$16.64**4.7★**▲ 16%**](https://www.amazon.com/dp/B0DMTV24LR) [**Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Glycinate - 180 Capsules**Pure Encapsulations**$45.01**4.7★**— 9%**](https://www.amazon.com/dp/B0058HWV9S)
**~~View all trending →~~**
## **What reviews say buyers love and hate about magnesium glycinate 120 mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**24%
*“I fall asleep easily”*
**Quality-Overall**20%
*“Amazing quality”*
**Magnesium**13%
*“The best magnesium supplement I have ever taken”*
**Vitamin**4%
*“The best vitamin for your body”*
**Value For Money**3%
*“Great value for the money”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Muscle Pain Relief**3%
*“Eases muscle cramping”*
**Efficiency**2%
*“Effective”*
**Stress/Anxiety**2%
*“Helps with anxiety and stress”*
**Ease Of Chewing/Swallowing**2%
*“Easier to swallow”*
### **What buyers complain about **
**Sleep Quality**14%
*“Did not help with sleep”*
**Magnesium**7%
*“Low quality magnesium”*
**Quality-Overall**6%
*“Poor quality control”*
**Functionality-Overall**5%
*“noticed no results”*
**Size-Overall**5%
*“Too Big”*
**Taste-Overall**4%
*“Awful aftertaste”*
**Side Effects**4%
*“intolerant side effect”*
**Acid Regulator/Stomach Ache Relief**4%
*“Causes upset stomach and headache”*
**Dosage**4%
*“Those supplements are low-dose”*
**Value For Money**3%
*“Way overpriced”*
### **Top return reasons **
**Magnesium**13%
**Functionality-Overall**12%
**Value For Money**10%
**Dosage**10%
**Acid Regulator/Stomach Ache Relief**10%
**Sleep Quality**9%
**Vitamin**5%
**Advertised Vs Actual Product**4%
**Size-Overall**4%
**Ease Of Chewing/Swallowing**2%
## **Common magnesium glycinate 120 mg questions**
- **Is magnesium glycinate 120 mg profitable to sell on Amazon United States?**
- The niche generates $187K/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -29.7%. Flapen's verdict: Skip it (45/100).
- **How competitive is the magnesium glycinate 120 mg niche?**
- 12 brands and 41 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 77% of demand.
- **What do buyers complain about in magnesium glycinate 120 mg?**
- Top complaints mined from reviews: Sleep Quality, Magnesium, Quality-Overall. The return rate is 0.0%.
- **What does it cost to enter the magnesium glycinate 120 mg niche?**
- Listings span $7.92–$45.01; the average listing price is $20.88 (sweet spot $15–$100). The average incumbent carries 9,201 reviews — the moat a new listing must climb.
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