---
title: "Magnesium Hydroxide Powder — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/magnesium-hydroxide-powder"
last_updated: "2026-08-12T18:24:02.684Z"
locale: en
meta:
description: "Amazon product research for magnesium hydroxide powder: $5K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for magnesium hydroxide powder: $5K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Magnesium Hydroxide Powder — Amazon US Product Research"
---
# **Magnesium Hydroxide Powder**
**Skip it**
A concentrated shelf (top 5 take 91% of clicks) — this niche doesn't clear our bar today.
Market size 16Growth 24Conversion 95Competition 8Returns 100Price range 66Avg price 72Brand share 13Review moat 58Quality gap 27
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.9%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$14.61**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$9.58–$25.59**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,179.88**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-2.0%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$63K**
$63K/yr · 36K searches
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****91%**
top-5 click share — a locked-up shelf
## **Is magnesium hydroxide powder profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, magnesium hydroxide powder is a $63K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 40/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium hydroxide powder 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**
- **$44K–$58K**
- units × avg price
- **Conversion rate**
- **11.9%**
- **Avg BSR**
- **#1,167**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.8%**
- **Avg brand age**
- **70 months**
- **Avg seller age**
- **189 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **—flat
**Sellers**
**17**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**91%**
Top 20: 100%
**Open market**
**3%**
- BulkSupplements31% - Herbs Botanica28% - mGanna18% - Best Naturals15% - Evolviing Roots4% - NOW Foods3% - Open — no brand owns it (1 brand, 3%)
## **magnesium hydroxide powder demand & seasonality**
Weekly Amazon search volume, last 22 weeks — -2.0% search growth over the last 90 days.
1K800Mar '26Mar '26Apr '26May '26May '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/magnesium-hydroxide-powder/trend)
## **Top magnesium hydroxide powder 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%$6K20%$13K30%$19K40%$25K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Herbs Botanica Magnesium Hydroxide Powder 8 oz Fine Powdered Magnesium for DIY Use Deodorant Toothpaste and Crafting Ozonated Magnesium Oxide Alternative**Herbs Botanica**$11.54**4.5★106 rev](https://www.amazon.com/dp/B0FG3492CR) [2**BulkSupplements.com Magnesium Hydroxide Powder - Magnesium Hydroxide Supplement - Food Grade & Gluten Free 1g per Serving 500g (1.1 lbs) (Pack of 1)**BulkSupplements**$18.92**4.7★1,508 rev](https://www.amazon.com/dp/B00GUOWEL8) [3**mGanna Magnesium Hydroxide Powder 227 GMS / 0.5 lbs**mGanna**$11.27**4.5★86 rev](https://www.amazon.com/dp/B0CYTB6S5B) [4**Best Naturals Magnesium Hydroxide Powder - 380mg of Elemental Magnesium per Serving - 454 Servings per Cotainer - 1 Pound**Best Naturals**$14.69**4.6★288 rev](https://www.amazon.com/dp/B0C3WMWGY6) [5**Evolviing Roots Magnesium Hydroxide Powder 8 oz (227g / 1/2 lb) Fine Cosmetic Grade Mineral Powder for DIY Personal Care Deodorant Formulas Toothpaste Face Masks & External Use Applications**Evolviing Roots**$9.58**4.6★4 rev](https://www.amazon.com/dp/B0GZWBRMJW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Evolviing Roots Magnesium Hydroxide Powder 8 oz (227g / 1/2 lb) Fine Cosmetic Grade Mineral Powder for DIY Personal Care Deodorant Formulas Toothpaste Face Masks & External Use Applications**Evolviing Roots**$9.58**4 rev2mo ago](https://www.amazon.com/dp/B0GZWBRMJW) [**Vitamatic Magnesium Oxide Powder 1000 mg Per Serving 250 Servings High Absorption Magnesium Supplement 600 mg Elemental Magnesium Unflavored**Vitamatic**$9.97**44 rev1y ago](https://www.amazon.com/dp/B0FHTK6N8M) [**Herbs Botanica Magnesium Hydroxide Powder 8 oz Fine Powdered Magnesium for DIY Use Deodorant Toothpaste and Crafting Ozonated Magnesium Oxide Alternative**Herbs Botanica**$11.54**106 rev1y ago](https://www.amazon.com/dp/B0FG3492CR) [**mGanna Magnesium Hydroxide Powder 227 GMS / 0.5 lbs**mGanna**$11.27**86 rev2y ago](https://www.amazon.com/dp/B0CYTB6S5B) [**Best Naturals Magnesium Hydroxide Powder - 380mg of Elemental Magnesium per Serving - 454 Servings per Cotainer - 1 Pound**Best Naturals**$14.69**288 rev3y ago](https://www.amazon.com/dp/B0C3WMWGY6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Evolviing Roots Magnesium Hydroxide Powder 8 oz (227g / 1/2 lb) Fine Cosmetic Grade Mineral Powder for DIY Personal Care Deodorant Formulas Toothpaste Face Masks & External Use Applications**Evolviing Roots**$9.58**4.6★**▲ 231%**](https://www.amazon.com/dp/B0GZWBRMJW) [**Vitamatic Magnesium Oxide Powder 1000 mg Per Serving 250 Servings High Absorption Magnesium Supplement 600 mg Elemental Magnesium Unflavored**Vitamatic**$9.97**4.3★**▲ 19%**](https://www.amazon.com/dp/B0FHTK6N8M) [**Herbs Botanica Magnesium Hydroxide Powder 8 oz Fine Powdered Magnesium for DIY Use Deodorant Toothpaste and Crafting Ozonated Magnesium Oxide Alternative**Herbs Botanica**$11.54**4.5★**▲ 14%**](https://www.amazon.com/dp/B0FG3492CR) [**mGanna Magnesium Hydroxide Powder 227 GMS / 0.5 lbs**mGanna**$11.27**4.5★**— 9%**](https://www.amazon.com/dp/B0CYTB6S5B) [**Best Naturals Magnesium Hydroxide Powder - 380mg of Elemental Magnesium per Serving - 454 Servings per Cotainer - 1 Pound**Best Naturals**$14.69**4.6★**— 5%**](https://www.amazon.com/dp/B0C3WMWGY6)
**~~View all trending →~~**
## **What reviews say buyers love and hate about magnesium hydroxide powder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Zero complaints”*
**Value For Money**12%
*“it's so worth it”*
**Muscle Pain Relief**7%
*“Helps fantastically with muscle soreness from working out”*
**Advertised Vs Actual Product**7%
*“it worked exactly as expected”*
**Efficiency**6%
*“Functional Performance:”*
**Ease Of Use**6%
*“Ease of use”*
**Magnesium**6%
*“com Magnesium Hydroxide 5 stars because its simple, clean, and does exactly what I need it to do”*
**Solubility**4%
*“The solubility is consistent”*
**Durability**3%
*“Last”*
**Ingredients-Overall**3%
*“this is ultimately a specialty ingredient that requires some knowledge”*
### **What buyers complain about **
**Magnesium**19%
*“Very disappointed, the bottle came opened and the magnesium was all over”*
**Advertised Vs Actual Product**17%
*“Misleading description”*
**Quality-Overall**11%
*“bad quality”*
**Allergies**8%
*“My son has autoimmune disorders which cause his skin to feel like it is burning like he has a bad sunburn”*
**Hard Feel**8%
*“Shake hard”*
**Regulates Digestion**4%
*“beware dont go anywhere after digesting”*
**Contamination**3%
*“its gotten harder to find it without added ingredients that contaminate the process”*
**Ingredients-Overall**3%
*“its gotten harder to find it without added ingredients that contaminate the process”*
**Smell**3%
*“smelled chemical like”*
**Sleep Quality**3%
*“I don't sleep well on a normal day so I can't say if this helped any”*
### **Top return reasons **
**Smell**50%
**Advertised Vs Actual Product**50%
## **Common magnesium hydroxide powder questions**
- **Is magnesium hydroxide powder profitable to sell on Amazon United States?**
- The niche generates $63K/yr across 8 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.0%. Flapen's verdict: Skip it (40/100).
- **How competitive is the magnesium hydroxide powder niche?**
- 7 brands and 17 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in magnesium hydroxide powder?**
- Top complaints mined from reviews: Magnesium, Advertised Vs Actual Product, Quality-Overall. The return rate is 0.0%.
- **What does it cost to enter the magnesium hydroxide powder niche?**
- Listings span $9.58–$25.59; the average listing price is $14.61 (sweet spot $15–$100). The average incumbent carries 1,180 reviews — the moat a new listing must climb.
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