Magnesium Bath Flakes Ultra + MSM

Name: Magnesium Bath Flakes Ultra + MSM
Brand: AncientMineral
SKU: AMFU-1
Price: 14.95 USD
Availability: InStock
Rating: 4.97 (35 reviews)

$14.95

Best Seller

Dissolved in warm water, Ancient Minerals Magnesium Bath Flakes Ultra contain only the purest ingredients of highly soluble magnesium chloride with premium distilled OptiMSM® (the world's purity standard for MSM) in a convenient magnesium soak.

Softens skin and rinses clean
Helps release post-activity tension
Infused with OptiMSM® for added support
Pure, fragrance-free, and fast-dissolving
Suitable for full baths or foot soaks

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Product variants

Pairs well with

Elemental magnesium

Fast-dissolving flakes provide clean magnesium care—no additives, no synthetics.

Pure magnesium chloride

This magnesium chloride is protected from modern contaminants and trusted for clean, topical use.

Post-activity soak

OptiMSM® adds organic sulfur to the soak—ideal after movement, training, or long days on your feet.

End-of-day support

Helps transition your body into rest—a welcome addition to evening routines.

Inside the formula

A closer look at the ingredients that shape this product.

Genuine Zechstein Magnesium Chloride

Sourced from a protected underground seabed known for exceptional purity.

100% pure, highly soluble magnesium chloride
No added fragrance, dyes, or preservatives
Unscented and skin-friendly

Magnesium Bath Flakes Ultra + MSM

MSM (from OPTIMSM®)

A premium form of organic sulfur known for purity and quality in topical applications.

Pairs well with magnesium chloride
Enhances the feel of the soak
No added fragrance or synthetic fillers

Suggested Use

Enhance your bath with the power of magnesium and MSM.

Add 1-2 cups of bath flakes to warm water
Soak for 20-30 minutes to allow magnesium to absorb
Pat skin dry and enjoy the lingering sense of relaxation

1,000+ five star reviews

Real people, real results

View All

(148)

“Safe to use on children which is why I bought it in hopes it would help them sleep at night. It worked wonders on all three of my kids! Relaxed them and bedtime was so easy and relaxing believe it or not!”

Skyler C.

Verified Purchase — Magnesium Bath Flakes

(84)

“Your magnesium oil is the very best. Acouple of nights I had cramps of the foot and leg. I sprayed some oil in the affected area, rubbed the oil in and almost immediately the cramps were gone. This is wonderful stuff!”

Susan W.

Verified Purchase — Magnesium Oil

(89)

“Love it. Incredibly absorbs into your skin it’s not greasy, and I love that. It has no scent to it. It moisturizes my skin really well ,and the magnesium helps my muscles. It’s a winner. I will continue to buy it”

m.E.C.

Verified Purchase — Magnesium Lotion

(10)

“My wife has been looking for a good alternative to deodorant as she is allergic to many commercial brands. She absolutely loves her magnesium gel now and says she will never use another deodorant again.”

Johnny

Verified Purchase — Magnesium Gel

How Ancient Minerals® compares

		Other Options
MSM-Enhanced	Infused with premium OptiMSM® to elevate magnesium soaking	Lacks advanced ingredients that enhance the soaking experience
Source Purity	Sustainably sourced from the ancient underground Zechstein seabed for unmatched purity	Often made with polluted or synthetically produced forms
Clean Formula Simplicity	Ultra-pure magnesium flakes and MSM—nothing added	Can include artificial ingredients and skin irritants
Tradition-Driven	Honors the time-honored practice of mineral bathing	Lacks connection to ancestral methods

Further Insights

What makes this soak different

This formula combines two trusted ingredients—Genuine Zechstein magnesium chloride and OptiMSM®. Together, they create a clean, mineral-rich soak designed to support physical comfort through topical use.

Why quality matters

Both ingredients are known for their purity and performance in wellness routines. Magnesium chloride offers fast solubility and a clean skin feel, while OptiMSM® is a premium source of organic sulfur, widely used in recovery-focused formulations.

Fits your lifestyle

Whether after movement, before bed, or anytime your body needs a break, this formula works for full-body baths or targeted foot soaks—no scent, no fillers, no hassle.

Customer Reviews

Customers praised these flakes for relieving muscle soreness, joint pain, and promoting deep sleep. Reviewers noted they "dissolve easily" and leave skin feeling soft. Many appreciate the relaxation and restoration after soaking. One customer mentioned it helps with chronic nerve pain and skin issues. Only concern was cost relative to quantity.

When I feel like I might be getting sick, I take a hot bath and in the morning, I'm completely well.
When I get out I feel loose, sleepy and nothing aches! Heaven in a bag!
They dissolve easily, leave my skin soft, and my muscles feel so relaxed after each soak.

5 stars: 34 (97%)
4 stars: 1 (3%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Our family feels restored and relaxed after a bath.

Awesome product and amazing customer service!

Repeat of last review. Thought I was reviewing msm purchase

I've been using the Magnesium Bath Flakes Ultra + MSM for years now. I love them! When I feel like I might be getting sick (cold or flu), I take a hot bath with a bag of flakes and in the morning, I'm completely well. Sore? Fixes achy muscles too. It's an extraordinary product!

This is heaven in a bag! I’ve gotten into the habit of taking a soak each night with the Bath flakes and when I get out I feel loose, sleepy and nothing aches! I love this product. It’s added a degree of self care that I never knew that I needed..

helps a lot with managing chronic nerve pain! I love this product.

Perfect for Unwinding

Absolutely love these Magnesium Bath Flakes! They dissolve easily, leave my skin soft, and my muscles feel so relaxed after each soak. Highly recommend!

Love this!

Amazing bath flakes. Love them! Highly recommend!!!

Amazing!

Bath Flakes

The bath flakes are great for soaking feet, as well.

Working great!

I love the product. Helps my joints.

Sleep heaven

I use this with 3 pounds of baking soda and magnetic clay, in hot water, and soak in it for an hour. Turns me into jello and I sleep like a rock. I look forward to these baths!

Excellent

Magnesium Bath Flakes Ultra

I love soaking in an epsom salt bath!!

Terrific product

High quality

I keep it in stock.

Smells fantastic- flakes are small and dissolve easily. Excellent customer service- received order w/in 2 days.

Repeat and lifelong customer

Thank you for healing my body from others ill needs. We each deal with trauma daily, our perspectives and traumas are different, and your products have become my lifelong resource for restoration of my known healthy self.

Wonderful product!

I have already ordered a second bag of this! I absolutely love the magnesium bath flakes. I go to bed feeling so relaxed I definitely noticed a difference in how my body feels after taking a bath! I love it so much I keep ordering more and I’ve ordered some for My friends as well!

Somewhat costly for amount of product.

Great product!

I really enjoy using these magnesium bath flakes once or twice a week. They don't leave any residue on your skin and work well for alleviating muscle tension and great for overall relaxation.

A must have for post workout soaks

Good stuff!

Probably the best bath salt Ive ever used! It’s strong and I love it!

Mag bath

Very relaxing and because I have some skin issues it helps with that. Blessings

Magnesium flakes ultra

Love the way this feels on my skin. Helps with calming as well

Flakes

Excellent bath flakes!!

Love this stuff!

This has become part of my post workout routine! Perfect for sore muscles!

5 Stars

My doctor recommended the bath flakes to help with fascia healing. About 20 minutes after soaking in the flakes, I felt a sense of wellness and relaxation. Would recommend this product.

5 Stars

Awesome for taking baths.

Excellent bath flakes!

I love these Ultra bath flakes. I often do cardio daily, and the flakes, used regularly in the bathtub, decrease overall muscle soreness. Worth it just for that. But the flakes also feel good in the water and make baths more fun!

Good Sleep

The next best thing to being in the Ocean! And I sleep really deeply plus my skin feels smooth

FAQs

How is this different than epsom salts?

Magnesium bath flakes (magnesium chloride) and Epsom salts (magnesium sulfate) are both mineral salts used in bathing traditions, but they differ in form, origin, and experience.

Ancient Minerals Magnesium Bath Flakes are made with magnesium chloride, which offers a smooth, easily dissolvable soak and is known for its use in professional wellness settings. Epsom salts, composed of magnesium sulfate, are more commonly found in general retail and may vary in source and consistency.

Our flakes are sourced from the ancient Zechstein seabed, a protected and deeply buried natural deposit. By contrast, many Epsom salt brands do not disclose their source and may be packaged from various suppliers based on availability.

Where does Ancient Minerals magnesium chloride come from?

Ancient Minerals magnesium chloride is harvested from the Zechstein seabed, a deeply buried, ancient deposit in the Netherlands. This source has been protected from modern environmental exposure for millions of years, and is known for its consistency and quality.

We use only Genuine Zechstein magnesium chloride, and every Ancient Minerals product carries the Genuine Zechstein mark—a reflection of its origin and mineral identity.

Is this the best application for children and how much should be used?

Magnesium baths have been used by families as a gentle self-care practice for children. For a small bath, many parents choose to add ½ to 1 cup of flakes to warm water, adjusting as needed based on the child’s age and comfort level.

As with any new product, we recommend consulting your pediatrician—especially for children under 2 years of age.

How often should I take a magnesium bath?

Magnesium baths can be enjoyed regularly as part of a self-care routine. Many people choose to soak a few times per week, while others make it a daily ritual.

As with any personal care practice, frequency can be adjusted based on your individual needs and preferences.

Are Ancient Minerals products appropriate during pregnancy and breastfeeding?

Many women choose to include magnesium baths as part of their self-care routine during pregnancy or breastfeeding. However, if you are pregnant or nursing, we recommend consulting your healthcare provider before use—especially if it’s your first time using topical magnesium.