---
title: "fsa magnesium — Niche Verdict: Skip it (49/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/health-household/fsa-magnesium"
last_updated: "2026-07-14T04:26:43.562Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 100% of clicks) — fsa magnesium doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 100% of clicks) — fsa magnesium doesn't clear our bar today."
  "og:title": "fsa magnesium — Niche Verdict: Skip it (49/100) | Amazon United States - Flapen"
---

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# **fsa magnesium**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 77Growth 24Conversion 76Competition 11Returns 97Price range 73Avg price 81Brand share 0Review moat 45Quality gap 53

**Returns**

**Incredible****0.7%**

return rate — above 6% kills the launch gate

**Avg price**

**Great****$17.42**

avg listing price — sweet spot $15–$100

**Market size**

**Great****$959K**

$959K/yr · 751K searches

**Conversion**

**Great****7.3%**

search→purchase rate — share of searches ending in a sale

**Price range**

**Good****$9.66–$29.59**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Okay****1,999**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-2.4%**

90-day search growth — must beat 0% to launch

**Competition**

**Bad****87%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**4 **—flat

**Sellers**

**12**

**Top-5 brand share**

**100%**

**Open market**

**0%**

- EPSOM-IT90% - ASUTRA5% - PROcure3% - Magnum Solace2%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%$144K30%$288K45%$432K60%$575K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Epsom-It Soothing Muscle Magnesium Lotion Epsom Salt Topical Cream with Arnica and Magnesium Sulfate - Designed for Muscle Stiffness Leg Cramps Feet Knees and Achy Feet - 8.0 oz](https://m.media-amazon.com/images/I/410kfllysjL.jpg)**Epsom-It Soothing Muscle Magnesium Lotion Epsom Salt Topical Cream with Arnica and Magnesium Sulfate - Designed for Muscle Stiffness Leg Cramps Feet Knees and Achy Feet - 8.0 oz**EPSOM-IT**$19.07**4.4★4,127 rev](https://www.amazon.com/dp/B073DS33KY) [2![Epsom-It Soothing Nerve Lotion - Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica to Provide Comfort for Legs Knee and Feet 8.0 oz.](https://m.media-amazon.com/images/I/41ukrp9n9dL.jpg)**Epsom-It Soothing Nerve Lotion - Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica to Provide Comfort for Legs Knee and Feet 8.0 oz.**EPSOM-IT**$20.38**4.3★1,331 rev](https://www.amazon.com/dp/B0C1PDMC6Y) [3![Epsom-It Soothing Muscle Lotion - Roll On Epsom Salt Lotion with Arnica for Muscle Stiffness Leg Knees and Feet Discomfort Topical Magnesium Cream 3oz](https://m.media-amazon.com/images/I/31riWYOS4tL.jpg)**Epsom-It Soothing Muscle Lotion - Roll On Epsom Salt Lotion with Arnica for Muscle Stiffness Leg Knees and Feet Discomfort Topical Magnesium Cream 3oz**EPSOM-IT**$12.69**4.5★1,339 rev](https://www.amazon.com/dp/B0924VKH4Y) [4![EPSOM-IT Calming Foot Lotion - Topical Magnesium Cream for Tired Feet & Ankles Epsom Salt Magnesium Sulfate Rub with Urea Soften Tough Skin & Cracked Heels Stiffness in Legs Knees and Feet 3.5oz](https://m.media-amazon.com/images/I/41H4U25W79L.jpg)**EPSOM-IT Calming Foot Lotion - Topical Magnesium Cream for Tired Feet & Ankles Epsom Salt Magnesium Sulfate Rub with Urea Soften Tough Skin & Cracked Heels Stiffness in Legs Knees and Feet 3.5oz**EPSOM-IT**$17.68**4.5★401 rev](https://www.amazon.com/dp/B0CZSG2XCZ) [5![Epsom-It Soothing Nerve Lotion - Roll On Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica for Tired Muscles and Sleep 3oz](https://m.media-amazon.com/images/I/311nNMPGWbL.jpg)**Epsom-It Soothing Nerve Lotion - Roll On Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica for Tired Muscles and Sleep 3oz**EPSOM-IT**$14.83**4.4★915 rev](https://www.amazon.com/dp/B0C31MVP4K)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![EPSOM-IT Soothing Magnesium Lotion 6oz Bottle Concentrated Epsom Salt Lotion with Shea Butter for Better Sleep Relaxation & Muscle Stiffness | Soothing Magnesium for Daily Self-Care | Made in USA](https://m.media-amazon.com/images/I/41KRsyrqsrL.jpg)**EPSOM-IT Soothing Magnesium Lotion 6oz Bottle Concentrated Epsom Salt Lotion with Shea Butter for Better Sleep Relaxation & Muscle Stiffness | Soothing Magnesium for Daily Self-Care | Made in USA**EPSOM-IT**$18.36**32 rev3mo ago](https://www.amazon.com/dp/B0GWPNGW37) [![Magnum Solace Nighttime Magnesium Lotion with Arnica Highly Concentrated Magnesium for Muscles & Joints Apply to Legs or Feet Before Bed Skin-Friendly](https://m.media-amazon.com/images/I/41U-jUI+rXL.jpg)**Magnum Solace Nighttime Magnesium Lotion with Arnica Highly Concentrated Magnesium for Muscles & Joints Apply to Legs or Feet Before Bed Skin-Friendly**Magnum Solace**$9.66**7,702 rev1y ago](https://www.amazon.com/dp/B0F1QHNFJP) [![EPSOM-IT Calming Foot Lotion - Topical Magnesium Cream for Tired Feet & Ankles Epsom Salt Magnesium Sulfate Rub with Urea Soften Tough Skin & Cracked Heels Stiffness in Legs Knees and Feet 3.5oz](https://m.media-amazon.com/images/I/41H4U25W79L.jpg)**EPSOM-IT Calming Foot Lotion - Topical Magnesium Cream for Tired Feet & Ankles Epsom Salt Magnesium Sulfate Rub with Urea Soften Tough Skin & Cracked Heels Stiffness in Legs Knees and Feet 3.5oz**EPSOM-IT**$17.68**401 rev2y ago](https://www.amazon.com/dp/B0CZSG2XCZ) [![PROcure Epsom Salt Rub Gel - 2 Pack with Aloe Vera & Essential Oils](https://m.media-amazon.com/images/I/41W7lGXYBML.jpg)**PROcure Epsom Salt Rub Gel - 2 Pack with Aloe Vera & Essential Oils**PROcure**$14.52**1,441 rev3y ago](https://www.amazon.com/dp/B0C78FS41S) [![Epsom-It Soothing Nerve Lotion - Roll On Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica for Tired Muscles and Sleep 3oz](https://m.media-amazon.com/images/I/311nNMPGWbL.jpg)**Epsom-It Soothing Nerve Lotion - Roll On Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica for Tired Muscles and Sleep 3oz**EPSOM-IT**$14.83**915 rev3y ago](https://www.amazon.com/dp/B0C31MVP4K)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![EPSOM-IT Soothing Magnesium Lotion 6oz Bottle Concentrated Epsom Salt Lotion with Shea Butter for Better Sleep Relaxation & Muscle Stiffness | Soothing Magnesium for Daily Self-Care | Made in USA](https://m.media-amazon.com/images/I/41KRsyrqsrL.jpg)**EPSOM-IT Soothing Magnesium Lotion 6oz Bottle Concentrated Epsom Salt Lotion with Shea Butter for Better Sleep Relaxation & Muscle Stiffness | Soothing Magnesium for Daily Self-Care | Made in USA**EPSOM-IT**$18.36**4.8★**▲ 367%**](https://www.amazon.com/dp/B0GWPNGW37) [![Epsom-It Soothing Muscle Magnesium Lotion Epsom Salt Topical Cream with Arnica and Magnesium Sulfate - Designed for Muscle Stiffness Leg Cramps Feet Knees and Achy Feet - 8.0 oz](https://m.media-amazon.com/images/I/410kfllysjL.jpg)**Epsom-It Soothing Muscle Magnesium Lotion Epsom Salt Topical Cream with Arnica and Magnesium Sulfate - Designed for Muscle Stiffness Leg Cramps Feet Knees and Achy Feet - 8.0 oz**EPSOM-IT**$19.07**4.4★**— 7%**](https://www.amazon.com/dp/B073DS33KY) [![EPSOM-IT Calming Foot Lotion - Topical Magnesium Cream for Tired Feet & Ankles Epsom Salt Magnesium Sulfate Rub with Urea Soften Tough Skin & Cracked Heels Stiffness in Legs Knees and Feet 3.5oz](https://m.media-amazon.com/images/I/41H4U25W79L.jpg)**EPSOM-IT Calming Foot Lotion - Topical Magnesium Cream for Tired Feet & Ankles Epsom Salt Magnesium Sulfate Rub with Urea Soften Tough Skin & Cracked Heels Stiffness in Legs Knees and Feet 3.5oz**EPSOM-IT**$17.68**4.5★**— 5%**](https://www.amazon.com/dp/B0CZSG2XCZ) [![Epsom-It Soothing Muscle Lotion - Roll On Epsom Salt Lotion with Arnica for Muscle Stiffness Leg Knees and Feet Discomfort Topical Magnesium Cream 3oz](https://m.media-amazon.com/images/I/31riWYOS4tL.jpg)**Epsom-It Soothing Muscle Lotion - Roll On Epsom Salt Lotion with Arnica for Muscle Stiffness Leg Knees and Feet Discomfort Topical Magnesium Cream 3oz**EPSOM-IT**$12.69**4.5★**— 0%**](https://www.amazon.com/dp/B0924VKH4Y) [![Epsom-It Soothing Nerve Lotion - Roll On Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica for Tired Muscles and Sleep 3oz](https://m.media-amazon.com/images/I/311nNMPGWbL.jpg)**Epsom-It Soothing Nerve Lotion - Roll On Epsom Salt Magnesium Lotion Topical Magnesium Cream with Capsaicin & Arnica for Tired Muscles and Sleep 3oz**EPSOM-IT**$14.83**4.4★**— 3%**](https://www.amazon.com/dp/B0C31MVP4K)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 96 weeks — -2.4% search growth over the last 90 days.

18K13KSpike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay

Peak months: Feb, Mar, Jun · busiest ÷ quietest = 5.0×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Smell**22%

*“Light scent”*

**Efficiency**15%

*“works well”*

**Quality-Overall**13%

*“Decent enough product”*

**Soft Feel**6%

*“Goes on smoothly”*

**Value For Money**4%

*“Good price”*

**Advertised Vs Actual Product**4%

*“Does what it says”*

**Ease Of Use**4%

*“Goes on easy”*

**Absorbency**3%

*“absorbs good”*

**Moist/Dry**3%

*“moisturizes really well”*

**Ease Of Application**2%

*“Ease of application”*

### **What buyers complain about **

**Functionality-Overall**19%

*“Did not work”*

**Allergies**9%

*“Skin Irritation”*

**Skin Health**6%

*“I dont like the way it feels on my skin”*

**Adhesion/Stickiness**5%

*“Has a weird sticky feeling”*

**Moist/Dry**5%

*“Would NOT dry”*

**Value For Money**5%

*“a little pricey for me”*

**Smell**5%

*“Dont like the scent”*

**Symptom Reduction**4%

*“did not notice any improvement”*

**Pain Relief-Overall**3%

*“Does not relieve pain”*

**Size-Overall**2%

*“Also, very small”*

### **Top return reasons **

**Functionality-Overall**31%

**Advertised Vs Actual Product**13%

**Smell**10%

**Leak-Proof**6%

**Adhesion/Stickiness**6%

**Size-Overall**4%

**Moist/Dry**3%

**Skin Health**3%

**Value For Money**3%

**Ingredients-Overall**2%