Mag
FailPrices span $3.44–$14.56, mostly outside the sweet spot, so Mag is a Fail.
- Flapen Score
- 39 / 100Ranks 1,746 of 2,035 Health & Personal Care niches · −9 vs the category median of 4839
- Market size
- £292K/yr224K searches / yr
- 90-day growth
- -36.3%search demand this quarter
- Competition
- 82%top-5 click share · 9 brands · 44 sellers
Flapen Score
Mag against its category
The dotted line is the Health & Personal Care average. Past it, Mag is stronger. Inside it, weaker.
Market
The Mag market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Mag 224K times last year and spent an estimated £292K. The top 5 brands take 92% of clicks. Flapen scores it 39 out of 100, a Fail.
01 · Demand
An estimated 15.8% of those searches ended in a purchase.
Shoppers searched for this 224K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 15.8% of those searches ended in a purchase. Searches in the last 90 days moved -36.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £292K a year.
- Searches, last 12 months
- 224K
- Growth, 90 days vs prior 90
- -36.3%
- Conversion, latest week
- 15.8%
- Market size, estimated
- £292Ka year
- Top search term
- magnesium glycinate 400mg43K searches a year
02 · Price
A sale here is worth £8.26.
Listings sell for £8.26 on average, from £3.44 to £14.56. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 2,500 to 3,000 of them. At £8.26 that is £21K to £25K a year per listing.
- Average price
- £8.26under the $15 to $100 sweet spot
- Price range
- £3.44–£14.56
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 2,500–3,000
- Revenue per listing a year
- £21K–£25K
- Returns
- 0.1%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads and reviews.
92% 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 #22 within Minerals. It carries 8,263 reviews at 4.52 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 92%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #22in Minerals
- Average rating
- 4.52 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 8,263per listing
- Listings tracked
- 12
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 44 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 44 months
Products
Top Mag 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 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Magnesium Supplements Tablets
- Price
- £3.44
- Rating
- 4.6/5
- Reviews
- 5,535
- Age
- 12y ago

VitaBright Magnesium Glycinate Supplements | 180 Capsules | 1500mg 300mg Elemental Mg | High Strength Chelated Magnesium Bisglycinate for Adults | Tablets for Nerves & Psychological Support
- Price
- £14.56
- Rating
- 4.6/5
- Reviews
- 4,507
- Age
- 3y ago

VitaBright Magnesium Glycinate Complex 6-in-1 | 2500mg 485mg Elemental | 120 Caps | Glycinate Tablets Zinc Vitamin B6 & D | High Strength Magnesium Supplements for Women | ZMA Supplements for Men
- Price
- £8.01
- Rating
- 4.6/5
- Reviews
- 2,454
- Age
- 2y ago

Magnesium Glycinate 400mg | Chelated Bisglycinate for Muscle Relaxation Bones Heart Nerve Rest & Calm Support for Women & Men | High Absorption Magnesium Chelate Supplement | 120 Capsules
- Price
- £10.64
- Rating
- 4.4/5
- Reviews
- 3,814
- Age
- 2y ago

Magnesium Glycinate 3-in-1 Complex - 1800mg Supplements as Bisglycinate Citrate & Malate 90 Vegan Capsules Triple High Absorption 384mg Elemental UK Made
- Price
- £8.11
- Rating
- 4.5/5
- Reviews
- 35,795
- Age
- 3y ago
Trending
estimated 90-day click momentum
Magnesium Glycinate 400mg | Chelated Magnesium Glycinate for Maximum Absorption & Bioavailability | Calm Relaxation Muscle Health & Energy Support Supplement | Resealable Eco Pack | 60 Capsules
- Price
- £7.49
- Rating
- 4.3/5
- Reviews
- 31
- Age
- 11mo ago

Magnesium Citrate Capsules 1480mg | 444mg Elemental | 4 Months | Electrolytes & Hydration - Regular Daily Use | Magnesium Supplements for Women & Men | Not Powder or Tablets | VitaBright
- Price
- £12.88
- Rating
- 4.5/5
- Reviews
- 6,266
- Age
- 7y ago

Zipvit Magnesium Glycinate 2000mg with 400mg Elemental Plus Vitamin B6 120 Vegan Tablets High Strength Magnesium Supplements
- Price
- £7.91
- Rating
- 4.6/5
- Reviews
- 2,240
- Age
- 2y ago

VitaBright Magnesium Glycinate Supplements | 180 Capsules | 1500mg 300mg Elemental Mg | High Strength Chelated Magnesium Bisglycinate for Adults | Tablets for Nerves & Psychological Support
- Price
- £14.56
- Rating
- 4.6/5
- Reviews
- 4,507
- Age
- 3y ago

Magnesium Glycinate 400mg | Chelated Bisglycinate for Muscle Relaxation Bones Heart Nerve Rest & Calm Support for Women & Men | High Absorption Magnesium Chelate Supplement | 120 Capsules
- Price
- £10.64
- Rating
- 4.4/5
- Reviews
- 3,814
- Age
- 2y ago
Newest
by launch date
Magnesium Glycinate 400mg | Chelated Magnesium Glycinate for Maximum Absorption & Bioavailability | Calm Relaxation Muscle Health & Energy Support Supplement | Resealable Eco Pack | 60 Capsules
- Price
- £7.49
- Rating
- 4.3/5
- Reviews
- 31
- Age
- 11mo ago

Magnesium Glycinate 4-in-1 Complex - 400mg Elemental Mg - 180 Capsules
- Price
- £9.37
- Rating
- 4.6/5
- Reviews
- 3,717
- Age
- 1y ago

VitaBright Magnesium Glycinate Complex 6-in-1 | 2500mg 485mg Elemental | 120 Caps | Glycinate Tablets Zinc Vitamin B6 & D | High Strength Magnesium Supplements for Women | ZMA Supplements for Men
- Price
- £8.01
- Rating
- 4.6/5
- Reviews
- 2,454
- Age
- 2y ago

Magnesium Glycinate 400mg | Chelated Bisglycinate for Muscle Relaxation Bones Heart Nerve Rest & Calm Support for Women & Men | High Absorption Magnesium Chelate Supplement | 120 Capsules
- Price
- £10.64
- Rating
- 4.4/5
- Reviews
- 3,814
- Age
- 2y ago

Zipvit Magnesium Glycinate 2000mg with 400mg Elemental Plus Vitamin B6 120 Vegan Tablets High Strength Magnesium Supplements
- Price
- £7.91
- Rating
- 4.6/5
- Reviews
- 2,240
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 82% of clicks. A locked shelf that new listings rarely crack.
Brands
9 falling
Sellers
44
Est. top-5 brand share
92%
Top 20: 100%
Est. top-5 click share
82%
Top 20: 100%
Open market
5%
- VitaBright36%
- Vitabiotics Ultra27%
- Nobi Nutrition13%
- Zipvit8%
- Nutrition Geeks8%
- SMNutrition3%
- Open — no brand owns it (3 brands, 5%)
Demand
Mag search demand
Weekly searches over the year. Pick a range.
Search terms
Top Mag search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- magnesium glycinate 400mg43K/yr
- vitabright magnesium glycinate27K/yr
- vitabiotics magnesium34K/yr
- tablet magnesium9K/yr
- magnesium 6 in 1 complex12K/yr
- ultra magnesium8K/yr
- magnesium glycinate and zinc8K/yr
- magnesium 400mg8K/yr
- pro magnesium 46K/yr
- magnesium 500mg5K/yr
Reviews and returns
What reviews say buyers love and hate about Mag
We read the reviews and the return reasons for every product selling here.
“unable to sleep”
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.
16 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 Mag 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









