Best Magnesium Bath Flakes (2026): 8 Checked, Cost a Pound
Buy Ancient Minerals Magnesium Bath Flakes, 8 lb, $3.74 a pound. They are pure magnesium chloride flakes, and it is the lowest cost a pound of any flake in a bag of 3 lb or more. Want a small bag to try first? Dr Teal's 2 lb is $6.87.
Our pick for: magnesium chloride bath flakes
- A pound
- $3.74at Amazon's price
- A bag
- $29.958 lb resealable bag
- Made of
- Magnesium chlorideFlakes, not Epsom salt
- Smaller bag
- 4.4 lb$4.53 a pound, $19.95
Why we pick it Pure magnesium chloride flakes in an 8 lb resealable bag at $3.74 a pound. It costs the least of the flakes in bags of 3 lb or more.
Which bath flakes are magnesium chloride?
Six of the 8 products we checked are magnesium chloride, from five brands: Ancient Minerals, NOW, Asutra, Life-flo and Seven Minerals. One is Epsom salt, magnesium sulfate. If you want magnesium chloride flakes in a big bag, buy Ancient Minerals, $3.74 a pound in an 8 lb bag.
NOW Solutions Magnesium Flakes
Magnesium chloride flakes, 54 oz (3.375 lb). Choose it if you want the NOW brand.
$3.91 a pound · $13.19 for 54 oz
Check price on AmazonAncient Minerals, 4.4 lb
The same flakes in a smaller bag, $4.53 a pound. Choose it if 8 lb is too much.
$4.53 a pound · $19.95 for 4.4 lb
Check price on AmazonSeven Minerals Deep Relaxation Magnesium Chloride Flakes
Magnesium chloride flakes, 3 lb. Choose it if you want chamomile and clary sage.
$6.65 a pound · $19.95 for 3 lb
Check price on AmazonAsutra Magnesium Chloride Flakes
Magnesium chloride flakes, 4 lb, for bath, foot and body soaks.
$6.75 a pound · $26.99 for 4 lb
Check price on AmazonLife-flo Magnesium Bath Flakes, unscented
Magnesium chloride flakes with trace minerals, 44 oz (2.75 lb), unscented.
$8.58 a pound · $23.59 for 44 oz
Check price on AmazonWhich one is Epsom salt?
Epsoak is Epsom salt, magnesium sulfate, a different salt from the flakes above.
Epsoak Epsom Salt, 5 lb
It is unscented, in a 5 lb bag. Choose it if you want Epsom salt, $17.95.
$3.59 a pound · $17.95 for 5 lb
Check price on AmazonA small bag to try first
Dr Teal's Ancient Oasis Magnesium Flakes, fragrance free
A 2 lb bag of fragrance free magnesium flakes. Choose it to try a first bath for $6.87.
$3.44 a pound · $6.87 for 2 lb
Check price on AmazonHow do you tell flakes from Epsom salt on a label?
- Find the salt named on the bag or in the listing: "magnesium chloride" for flakes, "magnesium sulfate" for Epsom salt.
- Find the weight. 16 oz is 1 lb, so a 54 oz bag is 3.375 lb.
- Divide the price by the pounds to get the cost a pound, the figure in the table below.
How do the eight we can price compare a pound?
Lowest cost a pound first, at Amazon prices read November 12, 2026 and the bag weight on each listing. Cost a pound is the price divided by pounds. Amazon prices change, so the order can too.
| Product and salt | A pound | Bag and price |
|---|---|---|
| Dr Teal's Ancient Oasis Magnesium Flakes | $3.44 | 2 lb, $6.87 |
| Epsoak Epsom SaltMagnesium sulfate (Epsom salt) | $3.59 | 5 lb, $17.95 |
| Ancient Minerals Magnesium Bath Flakes, 8 lbMagnesium chloride | $3.74 | 8 lb, $29.95 |
| NOW Solutions Magnesium FlakesMagnesium chloride | $3.91 | 54 oz, $13.19 |
| Ancient Minerals Magnesium Bath Flakes, 4.4 lbMagnesium chloride | $4.53 | 4.4 lb, $19.95 |
| Seven Minerals Magnesium Chloride FlakesMagnesium chloride | $6.65 | 3 lb, $19.95 |
| Asutra Magnesium Chloride FlakesMagnesium chloride | $6.75 | 4 lb, $26.99 |
| Life-flo Magnesium Bath FlakesMagnesium chloride | $8.58 | 44 oz, $23.59 |
Questions people ask
Why do some listings say "Epsom salt alternative"?
Ancient Minerals and Life-flo title their flakes an Epsom salt alternative. The flakes are magnesium chloride, which is a different salt from Epsom salt, magnesium sulfate.
What does Zechstein mean on a bag of flakes?
Zechstein is an ancient seabed. Ancient Minerals, Asutra and Life-flo name it as the source of their magnesium chloride. NOW says its flakes come "from the Ancient Seabed."
Can you use the flakes for a foot soak?
Two listings name a foot soak: Life-flo ("Bath & Foot Soak") and Asutra ("Magnesium Flakes for Bath Soak, Foot & Body").
How we picked
We found the magnesium flakes sold on Amazon and read each listing's salt and weight on November 12, 2026. For NOW we read the salt on the maker's page. We priced each bag on November 12, 2026 and divided by its weight. The 8 listings come from 7 brands.
Sources
- Amazon product listing titles and prices for the 8 products, read November 12, 2026 through the Amazon Creators API.
- NOW Foods maker's page for NOW Solutions Magnesium Flakes, which lists the ingredient as magnesium chloride, read November 12, 2026.