Ancient Minerals

Ancient Minerals Magnesium Bath Flakes - Bathing Alternative to Epsom Salt - Soak in Natural Salts - High-Absorption

$19.95

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About this item

  • Mindful Magnesium Soak for Daily Wind-Downs - A clean, water-soluble form of magnesium chloride designed to complement warm baths or foot soaks—no added fragrance or fillers.
  • Purity from the Zechstein Seabed - Harvested from deep underground, our flakes are derived from one of the world’s most trusted natural magnesium sources —untouched by modern pollutants and gentle on all skin types.
  • Beyond Epsom Salt - Unlike Epsom salt (magnesium sulfate), Ancient Minerals uses magnesium chloride flakes—known for fast solubility and ease of topical use.
  • Trusted Since 2007 - Ancient Minerals remains a go-to name in topical magnesium, valued by customers around the world for its quality, sourcing, and simplicity.
  • Flexible for Bath or Foot Soak - Use as part of your evening reset, travel routine, or as a foot soak after long days. Suitable for women, men, and kids of all ages.
$19.95

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Product details
BrandAncient Minerals
ScentUnscented
Age Range (Description)Adult
Recommended Uses For ProductRelaxation
Product BenefitsRelieves muscle aches, improves skin hydration, and promotes relaxation through transdermal magnesium absorption See more
Technical specifications
is_discontinued_by_manufacturerNo
product_dimensions5.51 x 5.51 x 7.83 inches; 4.4 Pounds
departmentAll Ages
date_first_availableMarch 25, 2017
manufacturerAncient Minerals
best_sellers_rank#206 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #2 in Bath Salts

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Customer reviews

4.821,856 ratings
  1. 588%
  2. 413%
  3. 30%
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  5. 10%

Customers say

Customers find these bath flakes to be of high quality and effective, noting they dissolve instantly in warm water and work better than Epsom salts. Customers appreciate the magnesium content, with one mentioning it's a great way to make magnesium oil.

★★★★★

Amazing Recovery and Relaxation - Pure Quality!

Amy BiggsNovember 16, 2025✓ Verified purchase

These Ancient Minerals Magnesium Bath Flakes have transformed my evening routine! After dealing with muscle tension and poor sleep, I decided to try magnesium baths and chose these based on the genuine Zechstein source - best decision ever. The quality is immediately noticeable. These dissolve completely in warm water without any residue or grittiness, creating a silky smooth bath experience. I use about 1/2 to 1 cup per bath, and the resealable bag makes storage and measuring easy while keeping the flakes fresh. Within 20 minutes of soaking, I can feel the difference - muscle tension melts away, especially in my shoulders and legs after long workdays or intense workouts. The absorption through the skin is gentle with no irritation, even on sensitive areas. My sleep quality has noticeably improved on nights I take these baths. What impressed me most is how pure these are - no additives, fragrances, or unnecessary ingredients. Just genuine Zechstein magnesium chloride, which gives me confidence in what I'm putting on my body. The bag lasts quite a while even with regular use. I've tried other magnesium bath products, but the quality and effectiveness of Ancient Minerals is superior. The recovery benefits are real - less soreness, better relaxation, and improved sleep. Perfect for athletes, anyone with muscle tension, or those seeking natural relaxation. Worth every penny for genuine therapeutic-grade magnesium! Read more

★★★★★

Works

ALFFebruary 15, 2026✓ Verified purchase

I mean, what can I say? They are magnesium salts. They aren't fake. Seem like good quality. I mix them in the bath with Epsom salts and it's sooooo relaxing. I feel calm when I get out. Read more

★★★★★

Game Changing Magnesium Bath Flakes

Travis SpeesFebruary 8, 2026✓ Verified purchase

Ancient Minerals Magnesium Bath Flakes is a game changer for everyone, not just athletes. This product is a great way to absorb magnesium through your skin in a bath soak or via creating your own DIY magnesium spray bottle. I like the Magnesium Oil that Ancient Minerals also offers (you can find that product here: https://a.co/d/04dj1kNl) but dissolving these magnesium flakes in distilled water will do the same job if you're looking for savings. I use these magnesium flakes strictly for bath soaks. The calming sensation and relaxing of muscles is very noticeable when I use warm/hot water in my bathtub and soak for 15+ minutes. This helps me sleep considerably easier, both by falling asleep quicker and staying asleep longer though the night. *Disclaimer* If you have any open sores or cuts, this product will burn in those areas a bit as this is a salt, even in a tub of water. I consider this feeling a "healing" feeling but it's not going to be comfortable for everyone as a forewarning. Roughly 50% of the entire population doesn't get enough magnesium. This is an easy way to absorb magnesium without having to ingest magnesium orally which can cause digestive discomfort if you take too much, which is easy to do if you don't know how much magnesium you have consumed that day already. For women that read this review, this product is supposed to help with menstrual cramps. I am not a woman so I'm not well-versed to say from experienced whether that is true or not, but it seems like it would be a low-cost way to solve that issue at a minimum. This is my favorite brand of magnesium bath flakes, and I will continue to purchase these. I am not paid by Ancient Minerals to post this review, I'm simply a big fan of their products. Read more

★★★★★

Must have for your soak

HomeskooliehippieFebruary 3, 2026✓ Verified purchase

Ancient Minerals magnesium bath flakes are great quality and dissolve easily in the bath. My skin feels soft after soaking. I love that they’re made from pure, Zechstein magnesium chloride and have no added fillers. Love this product. Read more

★★★★★

These are THE BEST

HKJanuary 25, 2026✓ Verified purchase

I love these flakes. They make a real difference. And yes, they are expensive, but yes, they are way better than Epsom salts and also better than other magnesium flakes I’ve tried. I frequently do physical activity that leaves me feeling beat up and sore, and a bath with these seems to suck away all the aches and pains — not forever, but certainly long enough for me to easily fall asleep. They are excellent before bed — generally calming and helpful for sleep. They also seem a magical cure for those terrible leg cramps that come at night. If I take a bath with these flakes three times a week, I get no cramps. And once, when I had a cramp in the middle of the night, I limped to the bathroom, ran myself a shallow bath with these flakes, soaked my leg, and the cramps DISAPPEARED. If you’ve had those cramps, you know how much of a miracle that feels like. Read more

★★★★☆

Nice but…

D. MarshMarch 16, 2026✓ Verified purchase

The product is good. It was the quantity suggested for use that surprised me. I use the magnesium in a large jetted tub. For that, it was suggested that a whole packaged be used. This would make the price point very unappealing. Read more

★★★★★

Magneisum flakes healthy bath soak

Dr. Melanie bakerMarch 10, 2026✓ Verified purchase

Perfect for bath soaks to aid in relaxation before bed!! Helps replace magneisum in the body as well. Read more

★★★★★

Ancient Minerals Magnesium Bath Flakes

Sunflower Cottage ReviewsFebruary 16, 2026✓ Verified purchase

If you’re looking for a simple, natural way to unwind at the end of the day and improve your sleep routine, Ancient Minerals Magnesium Bath Flakes are absolutely worth it. I personally soak in these flakes every night for 25–30 minutes, and I’ve become a true believer in the power of magnesium before bed. The difference in relaxation, muscle ease, and sleep quality is unmistakable. Read more

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