Magnesium Oxide 500mg Capsules
FailThe average product has 19,507 reviews to catch up to, so Magnesium Oxide 500mg Capsules is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $167K/yr78K searches / yr
- 90-day growth
- +5.0%search demand this quarter
- Competition
- 68%top-5 click share · 14 brands · 76 sellers
Flapen Score
Magnesium Oxide 500mg Capsules against its category
The dotted line is the Health & Household average. Past it, Magnesium Oxide 500mg Capsules is stronger. Inside it, weaker.
Market
The Magnesium Oxide 500mg Capsules market on Amazon at a glance
Shoppers on Amazon United States searched for Magnesium Oxide 500mg Capsules 78K times last year and spent an estimated $167K. The top 5 brands take 81% of clicks. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 15.6% of those searches ended in a purchase.
Shoppers searched for this 78K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 15.6% of those searches ended in a purchase. Searches in the last 90 days moved +5.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $167K a year.
- Searches, last 12 months
- 78K
- Growth, 90 days vs prior 90
- +5.0%
- Conversion, latest week
- 15.6%
- Market size, estimated
- $167Ka year
- Peak month
- March1.2× the quietest month
- Top search term
- magnesium oxide 500mg74K searches a year
02 · Price
A sale here is worth $13.75.
Listings sell for $13.75 on average, from $5.55 to $39.16. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 750 to 1,000 of them. At $13.75 that is $10K to $14K a year per listing.
- Average price
- $13.75under the $15 to $100 sweet spot
- Price range
- $5.55–$39.16
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- $10K–$14K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
83% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #477 within Magnesium. It carries 19,507 reviews at 4.62 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 83%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #477in Magnesium
- Average rating
- 4.62 starsAmazon United States average 4.42 stars
- Average reviews
- 19,507per listing
- Listings tracked
- 18
04 · Newcomers
1 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 73 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 73 months
Products
Top Magnesium Oxide 500mg Capsules products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 28, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Natures Bounty Magnesium 500 mg Tablets High Potency Magnesium Supplement for Bone & Muscle Health Whole Body Support 200 Count (Pack of 1)
- Price
- $8.74
- Rating
- 4.7/5
- Reviews
- 105,290
- Age
- 12y ago

Carlyle Magnesium Oxide 500mg | 120 Capsules | Premium Quality
- Price
- $6.39
- Rating
- 4.6/5
- Reviews
- 683
- Age
- 3y ago

Amazing Formulas Magnesium Oxide Supplement | 500 Mg per Serving | 90 Capsules | Non-GMO | Gluten-Free | Made in USA
- Price
- $10.11
- Rating
- 4.5/5
- Reviews
- 797
- Age
- 10y ago

Natures Bounty Magnesium Supplements 500mg Tablets Support Bone & Muscle Health 200 Count (Pack of 2)
- Price
- $16.23
- Rating
- 4.7/5
- Reviews
- 105,290
- Age
- 8mo ago

Best Naturals Magnesium Oxide 500mg 360 Tablets - 1 Year Supply - Magnesium for Immune Support Muscle Recovery Leg Cramps Relaxation
- Price
- $18.74
- Rating
- 4.6/5
- Reviews
- 878
- Age
- 3y ago
Trending
estimated 90-day click momentum
Amazing Formulas Magnesium Oxide Supplement 500 Mg per Serving Capsules Non-GMO Gluten-Free Made in USA 180 Capsules
- Price
- $18.52
- Rating
- 4.8/5
- Reviews
- 36
- Age
- 3y ago

Magnesium Oxide 400mg 500 Capsules | Elemental Form for Max Concentration | Supports Calm Muscle & Nerve Health | Non-GMO
- Price
- $17.52
- Rating
- 4.6/5
- Reviews
- 754
- Age
- 1y ago

Best Naturals Magnesium Oxide 500mg 360 Tablets - 1 Year Supply - Magnesium for Immune Support Muscle Recovery Leg Cramps Relaxation
- Price
- $18.74
- Rating
- 4.6/5
- Reviews
- 878
- Age
- 3y ago

Douglas Laboratories Magnesium Oxide | Supports Normal Heart Function and Bone Formation* | 250 Capsules
- Price
- $20.50
- Rating
- 4.5/5
- Reviews
- 629
- Age
- 6y ago

nbpure MagO7 Natural Colon Cleanse & Detox (180 Capsules)
- Price
- $39.16
- Rating
- 4.6/5
- Reviews
- 47,406
- Age
- 22y ago
Newest
by launch date
Natures Bounty Magnesium Supplements 500mg Tablets Support Bone & Muscle Health 200 Count (Pack of 2)
- Price
- $16.23
- Rating
- 4.7/5
- Reviews
- 105,290
- Age
- 8mo ago

Magnesium Oxide 400mg 500 Capsules | Elemental Form for Max Concentration | Supports Calm Muscle & Nerve Health | Non-GMO
- Price
- $17.52
- Rating
- 4.6/5
- Reviews
- 754
- Age
- 1y ago

Carlyle Magnesium Oxide 500mg | 120 Capsules | Premium Quality
- Price
- $6.39
- Rating
- 4.6/5
- Reviews
- 683
- Age
- 3y ago

Amazing Formulas Magnesium Oxide Supplement 500 Mg per Serving Capsules Non-GMO Gluten-Free Made in USA 180 Capsules
- Price
- $18.52
- Rating
- 4.8/5
- Reviews
- 36
- Age
- 3y ago

BulkSupplements.com Magnesium Oxide Capsules - Magnesium Supplement Magnesium Oxide 500mg - Gluten Free 1 Capsule per Serving 180 Count (Pack of 1)
- Price
- $16.26
- Rating
- 4.6/5
- Reviews
- 182
- Age
- 3y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 68% of clicks. Leaders hold, but buyers still shop past them.
Brands
14 falling
Sellers
76
Est. top-5 brand share
81%
Top 20: 100%
Est. top-5 click share
68%
Top 20: 100%
Open market
14%
- Nature's Bounty34%
- Carlyle19%
- Amazing Nutrition13%
- Best Naturals11%
- Nutricost5%
- BulkSupplements5%
- Open — no brand owns it (8 brands, 14%)
Demand
Magnesium Oxide 500mg Capsules search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.2×
Reviews and returns
What reviews say buyers love and hate about Magnesium Oxide 500mg Capsules
We read the reviews and the return reasons for every product selling here.
“Magnesium deficiency”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Magnesium Oxide 500mg Capsules questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









