Best Selling Magnesium Oxide 400mg: See Top Product Rankings by Sales Volume & Market Trends

March 2026
123 Products Tracked

Looking for the most popular magnesium oxide 400mg products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "magnesium oxide 400mg." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.

Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B0058HWV9S currently leads the magnesium oxide 400mg market with 70K monthly sales, followed closely by B0B6CTYD6S with 70K monthly sales and B00H5PJ0HW with 50K monthly sales. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.

🏆Shoppers' Top PicksAmazon
by monthly sales March 2026
Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief, Sleep, Heart Health, Nerves, Muscles, and Metabolism* - with Magnesium Glycinate - 180 Capsules
1
B0058HWV9S
$46.50·
4.6
Units/sold70K
Magnesium Glycinate 400mg | 180 Capsules | Sleep, Muscle, & Heart Support | Vegan, Third Party Tested, Gluten Free, Non-GMO, by Double Wood Supplements
2
B0B6CTYD6S
$16.95·
4.6
Units/sold70K
Nature's Bounty Magnesium 500 mg Tablets, High Potency Magnesium Supplement for Bone & Muscle Health, Whole Body Support, 200 Count (Pack of 1)
3
B00H5PJ0HW
$8.98·
4.7
Units/sold50K

Top Selling Magnesium Oxide 400mg

As of March 2026, we analyzed 123 tracked products in Amazon's "magnesium oxide 400mg" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 6,000 and 70,000 monthly sales. B0058HWV9S leads the magnesium oxide 400mg market with an estimated 70,000 monthly sales.

123Products Tracked
27,500Top 10 Avg. Sales
$20.28Top 10 Avg. Price
4.6Top 10 Avg. Rating
🏆
Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief, Sleep, Heart Health, Nerves, Muscles, and Metabolism* - with Magnesium Glycinate - 180 Capsules
#1
B0058HWV9S

Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief, Sleep, Heart Health, Nerves, Muscles, and Metabolism* - with Magnesium Glycinate - 180 Capsules

70,000
Units Sold/mo
$46.50
Price
4.6
Rating
45.9K
Reviews
2
Magnesium Glycinate 400mg | 180 Capsules | Sleep, Muscle, & Heart Support | Vegan, Third Party Tested, Gluten Free, Non-GMO, by Double Wood Supplements
B0B6CTYD6S
$16.95
4.6 (20.2K)
Magnesium Glycinate 400mg | 180 Capsules | Sleep, Muscle, & Heart Support | Vegan, Third Party Tested, Gluten Free, Non-GMO, by Double Wood Supplements
70,000 Units Sold/mo
3
Nature's Bounty Magnesium 500 mg Tablets, High Potency Magnesium Supplement for Bone & Muscle Health, Whole Body Support, 200 Count (Pack of 1)
B00H5PJ0HW
$8.98
4.7 (102.3K)
Nature's Bounty Magnesium 500 mg Tablets, High Potency Magnesium Supplement for Bone & Muscle Health, Whole Body Support, 200 Count (Pack of 1)
50,000 Units Sold/mo
4
Nature Made Magnesium Oxide 400 mg Softgels, Extra Strength Magnesium Supplements for Men and Women, Support for Muscle, Nerve, Bone and Heart, 110 Day Supply
B07CDWT8WM
$14.00
4.7 (43.8K)
Nature Made Magnesium Oxide 400 mg Softgels, Extra Strength Magnesium Supplements for Men and Women, Support for Muscle, Nerve, Bone and Heart, 110 Day Supply
20,000 Units Sold/mo
5
Nature Made Magnesium Oxide 250 mg, Magnesium Supplements for Men and Women, Support for Muscle, Heart, Bone and Nerve Health, 200 Tablets, 200 Day Supply
B0002VG3QC
$6.79
4.7 (33.6K)
Nature Made Magnesium Oxide 250 mg, Magnesium Supplements for Men and Women, Support for Muscle, Heart, Bone and Nerve Health, 200 Tablets, 200 Day Supply
20,000 Units Sold/mo
10
Magnesium Glycinate 400mg | 200 Tablets | High Absorption Mag Supplements for Sleep, Leg Cramps, Heart, Muscle, Calm | Non Buffered Bisglycinate, Extra Strength for Women and Men, Tablets Not Capsules
B084TQZ2WQ
$19.95
4.6 (8K)
Magnesium Glycinate 400mg | 200 Tablets | High Absorption Mag Supplements for Sleep, Leg Cramps, Heart, Muscle, Calm | Non Buffered Bisglycinate, Extra Strength for Women and Men, Tablets Not Capsules
6,000 Units Sold/mo
View All 123 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the magnesium oxide 400mg price landscape, we segmented all 123 tracked listings in Amazon's live "magnesium oxide 400mg" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.

Leading the distribution, the $20.00 ~ $50.00 band is the category's best magnesium oxide 400mg price zone, absorbing 46% of the assortment (413 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the magnesium oxide 400mg category.

Top 3 Price Tiers

$20.00 ~ $50.00 is the most competitive price tier, containing 46% of tracked products.

Sweet Spot
$20.00 ~ $50.00
Tier 1
46%
413 products

Top products in this price tier

#1
B0058HWV9S
$46.50
70k Units Sold/mo
Unlock Top Performers
#2
$10.00 ~ $20.00
Tier 2
38%
340 products
$0.00 ~ $10.00
Tier 3
12%
109 products
$50.00 ~ $100.00
4%
Unlock to view all price tier distributions and their ASIN sales contributions

"Magnesium oxide 400mg" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "magnesium oxide 400mg" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.

During the week of 2026-03-08 to 2026-03-14, the Amazon USweekly search volume for "magnesium oxide 400mg" was approximately 7,332 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #26,197, dropping 2,125 positions from the previous week. Additionally, the top 3 products for this keyword capture 62.5% of the total click share and 55.4% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

magnesium oxide 400mg

ASINSIGHT
Search Frequency Rank
26,197
2,125
Search Volume
7,332
5.6%
Top 3 Click Share
62.5%
Top 3 Conv. Share
55.4%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
7,332
View full trends for the past 3 years
MarAprMayJunJulAugSepOctNovDecJanFebMar
Multi-Dimensional Data

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