SKU-level competitive intelligence across 39 magnesium supplements brands on Amazon U.S. - brand market share, sales volume, price trends, ratings and keyword demand. Refreshed every month.
CATEGORY SNAPSHOT - JUNE 2026
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$39.9M Monthly category revenue |
1.6 M Monthly units sold |
$26.1 Avg. selling price |
4.6★ Avg. seller rating |
39 Brands tracked |
A monthly, SKU-level read on the U.S. magnesium supplements category on Amazon - engineered to show where category revenue sits and how to compete for it. 8 tracked KPIs turn raw marketplace signals into decision-grade data for product, pricing and positioning calls.

Every issue is delivered as a ready-to-present analytical report. Below are real pages from the June 2026 Amazon magnesium supplements edition - the exact format and depth a client receives.
Pure Encapsulations and THORNE’s magnesium supplements sales on Amazon, holding the highest revenue shares at 23.6% and 9.4%, respectively. Other notable brands such as Nature Made, Double Wood Supplements, Life Extension, BioEmblem and others hold smaller individual shares, which together account for over 67.0%, showing a moderately fragmented market. In terms of customer ratings, brand performance is consistently strong, with most brands averaging around 4.6. Pure Encapsulations and THORNE stand out with the average rating of 4.6. Overall, the category shows strong consumer satisfaction, with leading revenue brands also maintaining competitive ratings.

The SKU-level sales data shows that ASIN B0058HWV9S (Pure Encapsulations Magnesium (Glycinate)-180 Capsules) is the leading product, generating $4.67 million monthly revenue with a 11.8% revenue share, making it the clear top SKU in the category. Pure Encapsulations Magnesium (Glycinate)- 90 Capsules ASIN B07P5K7DQP and THORNE - Magnesium Glycinate - Chelated Magnesium Capsules ASIN B0F5XYHRPV follow with monthly revenues of $3.83 million and $3.07 million, respectively. Nature Made has a strong SKU presence, with ten products among the top listings, supported by high review volumes and strong ratings.


The pricing landscape shows that the largest revenue concentration is above $15, with the $15.00 - $29.99 price band generating USD 22.4 million and the $30.00 - $44.99 band generating USD 7.8 million. Together, these two bands account for nearly all category revenue, indicating that consumer demand is highly concentrated in accessible, mass-market pricing.

Brand & Category Managers - benchmark brand share, track competitor SKUs, defend the price corridor and spot whitespace before the next launch.
Third-Party Amazon Sellers - validate the magnesium supplements niche with real units-sold and revenue estimates, review barriers and low-competition keywords.
Distributors & Wholesalers - size category demand, find the fastest-selling SKUs and identify which brands are worth stocking and distributing.
DIY Amazon analytics tools hand you raw data and leave the thinking to you. This report delivers the finished competitive intelligence - interpreted, source-tagged and validated against primary interviews.
Analyst-written strategic implications, not just charts to export
Bottom-up SKU roll-ups triangulated against category totals
Every data point source-tagged for methodological transparency
Month-over-month continuity under a fixed tracker code (CIT-MGS-0626)
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GVR Tracker |
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Brand & SKU market share |
Computed & ranked |
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Strategic interpretation |
Analyst-written |
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Primary validation |
Included |
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Ready to present |
Slides + tables |
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Effort to insight |
Zero - it’s done |
Single issue, annual subscription or multi-category bundle - with optional raw ASIN-level data export and dashboard access.
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Individual License |
Team License |
Enterprise License |
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