Magnesium Bath Flakes Ultra Magnesium Bath Flakes Ultra

Magnesium Bath Flakes Ultra

Regular price $14.95

Made with the same high-potency, tension-relieving magnesium chloride concentration as our best-selling bath flakes, Magnesium Bath Flakes Ultra includes the addition of  OptiMSM®, the premier source of organic elemental sulfur. OptiMSM® promotes cellular detoxification, helps reduce muscle soreness, and provides joint, skin and immune health support while enhancing magnesium absorption.

One time

Pairs well with


Soothes soreness with OptiMSM®

OptiMSM® provides elemental sulfur, a critical component of connective tissue that helps make cells more permeable, making it easier for nutrients and water to enter and toxins and wastes to leave. It also encourages production of glutathione, the body’s “master antioxidant” involved in cellular detoxification. MSM supports joint mobility, muscle recovery, youthful skin, and immune health. The addition of OptiMSM® makes this bath ideal for athletes and those looking to restore the body with a post-workout reset.

Restores magnesium levels

Magnesium is an essential mineral involved in over 300 biochemical processes. It supports heart health, builds strong bones, promotes nervous system and muscle health, and is essential to energy production. Every cell in your body needs magnesium to thrive, yet many of us are deficient. Our bath flakes make it easy to replenish depleted magnesium at the cellular level.

Supports stress relief & relaxation

Soaking in a warm magnesium-infused bath is a simple ritual that can help ease stress and tension. Often called the “relaxation mineral,” magnesium calms nerves and muscles, supports healthy brain function and improves mood by regulating neurotransmitters that send messages throughout your brain and nervous system.

Eases achy muscles

Magnesium offers fast, powerful relief from everyday muscle aches and discomfort. It supports the healthy function of muscles, helping them relax and contract properly. MSM provides additional support to help ease post-exercise muscle soreness.

Promotes restful sleep

In addition to supporting stress relief, magnesium can help you get a good night’s sleep by helping to relax the body as your body prepares for rest. Especially when used in an evening bath before bed, the “relaxation mineral” can help you fall asleep and sleep soundly through the night.


Genuine Zechstein Magnesium Chloride Flakes

Sourced from concentrated seawater deposits found approximately 2 miles beneath the earth’s surface in the ancient Zechstein seabed, our pure magnesium chloride offers superior absorption and potency compared to other forms of magnesium.

Methylsulfonylmethane (from OptiMSM®)

A superior source of organic sulfur, MSM enhances magnesium absorption and works via multiple mechanisms to decrease inflammation and support cellular detoxification. OptiMSM® is the world’s purest, safest, most consistent MSM.

Ingredients List

Genuine Zechstein magnesium chloride flakes (and trace minerals), methylsulfonylmethane (MSM), vegetable glycerin

Approximately 15g elemental magnesium per cup
Approximately 3g elemental sulfur (from OptiMSM®) per cup

How To Use

Dissolve 1-3 cups of magnesium flakes into a warm foot bath or full tub bath and soak for 30 minutes or more.

Dissolve up to 8 lbs of magnesium flakes in a full tub bath for intense applications.

The temperature of the water should be warm, but not hot. Hot water causes the skin to eliminate rather than absorb.

Following the bath, rinse skin with cool running water, then pat skin dry with a towel and apply a natural moisturizer.

Why topical magnesium with MSM?

Since ancient times, people have bathed in mineral-rich hot springs to reap the many health benefits that come from taking in minerals like magnesium and sulfur through the skin, a practice known as balneotherapy. Today, people all over the world continue to seek out hot springs for healing and rejuvenation. 

The Ancient Minerals® Ultra line combines topical magnesium with MSM, the world’s premium source of organic sulfur, providing a convenient and effective way to replicate the ancient art of balneotherapy. 

Topical magnesium allows you to maximize your daily magnesium intake without additional pills or the laxative effect often caused by oral supplements. Sulfur enhances the uptake of magnesium ions, soothes tension  and promotes cellular detoxification. 

Our Ultra products offer a powerful way to replenish magnesium and sulfur at a cellular level using your most efficient organ of absorption—your skin.

Customer Reviews

Customer Reviews

Based on 15 reviews
Suzanne D.
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.

Melissa D.
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.


How is this different than epsom salts?

Magnesium bath flakes are made from magnesium chloride. Epsom salts are magnesium sulfate. Although both contain a form of magnesium, magnesium chloride is much better suited for topical application. Magnesium chloride is the best choice because of its clinical and pharmacological effects, and its lower tissue toxicity as compared to magnesium sulfate. Magnesium chloride is more easily assimilated, and therefore more bioavailable or absorbed and utilized by the body. Whereas magnesium sulfate is not as easily absorbed and utilized in the body.

Magnesium Chloride has a different molecular structure that is more easily assimilated, and therefore more bioavailable or absorbed and utilized by the body. Whereas Magnesium Sulfate is not as easily absorbed and utilized in the body. Epsom Salts are also more rapidly excreted through the kidneys than Magnesium Chloride, which explains why results don’t last long, and more amounts are needed for desired effects.

Additionally, mankind’s indiscriminate use of fossil fuels and synthetic chemicals has ensured that almost every single body of water on this planet contains measurable levels of toxins. This includes the most easily attained sources of Epsom Salts. In fact, many Epsom Salt brands do not reveal the sourcing of their product and package from the cheapest source available at the moment, many of which could be polluted with environmental toxins and heavy metals.

Where does Ancient Minerals magnesium chloride come from?

Ancient Minerals magnesium is harvested from the Zechstein seabed, isolated from the forces of modern pollution. Genuine Zechstein magnesium is globally the most coveted source of naturally occurring magnesium chloride in existence. The Genuine Zechstein emblem is a mark of purity on every Ancient Mienrals product, and is an assurance that you are receiving only the finest natural magnesium chloride in the world.

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

Ancient Minerals magnesium baths are the preferred application by most parents, and have been used with great success on children as young as 6 months old. They are not only safe, but also highly therapeutic and can calm even the most restless young ones. Use 1/2 cup to 1 cup in a small bath.

How often should I take a magnesium bath?

You can take an Ancient Minerals magnesium bath as often as you'd like.

Are Ancient Minerals products safe to use during pregnancy and breastfeeding?

Our Ancient Minerals products are safe to use while pregnant or breastfeeding. That being said, if it's your first time using our products, you may still want to consult with your practitioner prior to using them.

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