---
title: "Mag Tab Sr — $7K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/mag-tab-sr"
last_updated: "2026-08-12T15:04:47.944Z"
locale: en
meta:
description: "Amazon product research for mag tab sr: $7K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mag tab sr: $7K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mag Tab Sr — $7K/mo Amazon US Product Research (2026)"
---
# **Mag Tab Sr**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 20Growth 21Conversion 100Competition 0Returns 100Price range 95Avg price 95Brand share 0Review moat 25Quality gap 23
**Conversion**
**Incredible****23.7%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$27.33**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$19.14–$39.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Bad****4,095**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-7.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$80K**
$80K/yr · 12K searches
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
## **Is mag tab sr profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mag tab sr is a $80K/yr Amazon United States market (12K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mag tab sr market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **1K–1K**
- avg 100–250/product
- **Revenue / yr**
- **$27K–$34K**
- units × avg price
- **Conversion rate**
- **23.7%**
- **Avg BSR**
- **#1,050**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **9.9%**
- **Avg brand age**
- **91 months**
- **Avg seller age**
- **182 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▲rising
**Sellers**
**15**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- MAG-TAB SR88% - Swanson7% - Slow-Mag5%
## **mag tab sr demand & seasonality**
Weekly Amazon search volume, last 33 weeks — -7.3% search growth over the last 90 days.
350250Spike '26Dec '25Jan '26Feb '26Mar '26May '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/mag-tab-sr/trend)
## **Top mag tab sr search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mag tab sr**5K/yr-14.0%8.3% conv. - **mag tab sr 84 mg**4K/yr-4.0%8.7% conv. - **mag-tab sr**2K/yr+1.9%7.2% conv. - **magtab sr**2K/yr-6.1%12.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/mag-tab-sr/search-terms)
## **Top mag tab sr 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%25%$20K50%$40K75%$60K100%$80K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 3 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Extended Release Magnesium Lactate Delivery for 10x Better Absorption-Mag-Tab SR (Sustained Release) 100 Count-Supports Sleep Muscle Cramps Magnesium Deficiency Health Issue**MAG-TAB SR**$39.16**4.7★700 rev](https://www.amazon.com/dp/B01J1KD470) [2**Swanson Magnesium Lactate - Lactose-Free Mineral Supplement for Muscle & Bone Health Support* - Gentle on the Stomach - Non-GMO & Gluten-Free - 120 Capsules**Swanson**$19.14**4.5★601 rev](https://www.amazon.com/dp/B00CZ7YHV4) [3**SlowMag Muscle & Heart Magnesium Chloride Supplement with Calcium 180 Count Supports Muscle Relaxation Heart Nerve & Bone Health High Absorption**Slow-Mag**$23.70**4.7★10,984 rev](https://www.amazon.com/dp/B07Y945GTQ)
### **Newest**
by launch date
[**SlowMag Muscle & Heart Magnesium Chloride Supplement with Calcium 180 Count Supports Muscle Relaxation Heart Nerve & Bone Health High Absorption**Slow-Mag**$23.70**10,984 rev6y ago](https://www.amazon.com/dp/B07Y945GTQ) [**Swanson Magnesium Lactate - Lactose-Free Mineral Supplement for Muscle & Bone Health Support* - Gentle on the Stomach - Non-GMO & Gluten-Free - 120 Capsules**Swanson**$19.14**601 rev13y ago](https://www.amazon.com/dp/B00CZ7YHV4) [**Extended Release Magnesium Lactate Delivery for 10x Better Absorption-Mag-Tab SR (Sustained Release) 100 Count-Supports Sleep Muscle Cramps Magnesium Deficiency Health Issue**MAG-TAB SR**$39.16**700 rev19y ago](https://www.amazon.com/dp/B01J1KD470)
### **Trending**
90-day click momentum
[**Extended Release Magnesium Lactate Delivery for 10x Better Absorption-Mag-Tab SR (Sustained Release) 100 Count-Supports Sleep Muscle Cramps Magnesium Deficiency Health Issue**MAG-TAB SR**$39.16**4.7★**— 8%**](https://www.amazon.com/dp/B01J1KD470) [**Swanson Magnesium Lactate - Lactose-Free Mineral Supplement for Muscle & Bone Health Support* - Gentle on the Stomach - Non-GMO & Gluten-Free - 120 Capsules**Swanson**$19.14**4.5★**▼ 19%**](https://www.amazon.com/dp/B00CZ7YHV4) [**SlowMag Muscle & Heart Magnesium Chloride Supplement with Calcium 180 Count Supports Muscle Relaxation Heart Nerve & Bone Health High Absorption**Slow-Mag**$23.70**4.7★**▼ 50%**](https://www.amazon.com/dp/B07Y945GTQ)
## **What reviews say buyers love and hate about mag tab sr**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“Great Product”*
**Muscle Pain Relief**15%
*“seriously reduces my Muscle Cramps”*
**Magnesium**11%
*“Good magnesium supplement”*
**Value For Money**8%
*“Cap totally worth it”*
**Efficiency**7%
*“it has been very effective”*
**Ease Of Use**6%
*“Very useful”*
**Sleep Quality**5%
*“Helps SLEEP and cramps”*
**Correct Contents**5%
*“Correct item, correct quantity & delivered on time”*
**Vitamin**5%
*“Great Product I was told to take it with vitamin B6 for better results it seams to be working after 2 weeks”*
**Heart Health**5%
*“Helps with heart palpitations”*
### **What buyers complain about **
**Adhesion/Stickiness**14%
*“These pills have such a sticky outside surface that its like glue going down”*
**Regulates Digestion**14%
*“its so hard for the tablet to make it down your esophagus”*
**Salt Content**11%
*“Has sulfites”*
**Value For Money**11%
*“cost way more if getting from pharmacy then on here”*
**Size-Overall**11%
*“Ok. Pretty big pill”*
**Dosage**4%
*“Only four stars because the dosage is two pills instead of one”*
**Allergies**3%
*“you can choke on it”*
**Magnesium**3%
*“Ever since my Chemotherapy Treatments I have had a multitude of very Low Magnesium levels”*
**Ease Of Chewing/Swallowing**3%
*“Do not try to swallow this tablet as its sticky as paste”*
## **Common mag tab sr questions**
- **Is mag tab sr profitable to sell on Amazon United States?**
- The niche generates $80K/yr across 3 tracked products. 90-day search growth is -7.3%. Flapen's verdict: Skip it (39/100).
- **How competitive is the mag tab sr niche?**
- 3 brands and 15 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in mag tab sr?**
- Top complaints mined from reviews: Adhesion/Stickiness, Regulates Digestion, Salt Content. The return rate is 0.0%.
- **What does it cost to enter the mag tab sr niche?**
- Listings span $19.14–$39.16; the average listing price is $27.33 (sweet spot $15–$100). The average incumbent carries 4,095 reviews — the moat a new listing must climb.
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