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Epsom Salt (Magnesium Sulfate) - USP

List price: $1.86
You save: $0.93 (50%)
SoapGoods Inc
Price in points: 24 points
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About Epsom Salt

All products are for external use only

Free shipping notes: 40 Lb Bag in Box

40 Lb Bag in box ships free in lower 48 continental states. Soapgoods Inc reserves the right to ship free shipping items via any carrier.


  • Synonyms: Eposom Salt, Magnesium sulfate, bitter saltste, Epson Salt
  • INCI Name: Magnesium Sulfate
  • CAS: 7487-88-9
  • Einecs: 231-298-2

The Science

  • Grade: USP
  • Viscosity: Solid
  • Solublity: Soluble in Water
  • Storage: Cool, dark dry area, air tight container preferred


  • Appearance: White salt like granules
  • Odor: Low to no odor
  • Natural: Natural, obtained through mining.
  • Packaging: 1 Lbs is a single bag, 3 Lb is a single bag, 12 lb is 4 x 3 lb bag. 50 lb is a box or bag, 500 lb is 10 x box or bag.
  • Shelf life: Indefinite, Suggested retest date 5 year from purchase

Usage / Benefits

  • Industries: Agriculture, cosmetics and personal care, healthcare, pharmaceuticals, food and beverage (as a food-grade salt), animal care, gardening, and bath products.
  • Applications: Epsom Salt Applications: Bath soak, sore muscle relief, plant nutrient, foot soak, exfoliant, laxative, splinter treatment, hair volumizer, fabric softener, tile and grout cleaner, slug deterrent.
  • Benefits: Epsom Salt Benefits: Muscle relaxation, reduced swelling, skin softening, detoxification, stress relief, alleviation of minor aches and pains, improved sleep, increased magnesium levels, reduced skin inflammation, enhanced plant growth.
  • Products Uses: Epsom Salt Product Uses: Bath bombs, foot scrubs, facial masks, hair treatments, garden fertilizers, soak solutions, shower gels, homemade laundry detergents, natural cleaners, spa treatments, DIY craft projects.
  • Safety: Generally safe, however keep out of eyes and do not eat.
  • Cautions: Not for ingestion, keep away from pets and children who may attempt to eat.
  • External Use Only: Even if food grade, we do not provide items for ingestion, all of our items are for external use only.

Epsom Salt

Magnesium Sulfate or Epsom Salt is used in baths, for flotation therapy, foot soaks, for the alleviation of rough patches and for the reduction of inflammation. It can be used to fight such skin problems such as blemishes and acne when applied directly to problem areas in poultice form. When used to exfoliate skin it does not leave the skin feeling dry like other salts. It is an emollient which gives the skin a silky smooth texture.

Soaking in an Epsom Salt bath can also help relieve the symptoms of Herpes such as lesions and itching. Magnesium sulfate can be used in paste form is used as a dehydrating agent for abscesses, carbuncles and boils. In the case of barium poisoning, Epsom salt may be given as first aid.

Epsom salt can also be used as first aid on insect bites, sprains, bruises and to draw out splinter. Due to the fact that Epsom Salt can be absorbed through the skin, the magnesium level of the body will also increase when the skin is exposed to Epsom Salts. This increase can stimulate the serotonin production within the brain. Serotonin is a mood-regulating neurotransmitter which can elevate feelings of positivity and well-being. Magnesium sulfate is also able to sedate the nervous system.

In gardening and agriculture, magnesium sulfate is used to correct magnesium deficiency in the soil. It can also be added to the soil of potted plants, or to certain crops which need a high amount of magnesium such as roses, tomatoes, peppers and potatoes. It is preferred over other magnesium soil amendments like dolomitic lime because of its high water solubility. It is also able to blend very well with oils.

Epsom salt, scientifically known as magnesium sulfate, is a naturally occurring mineral compound. It has garnered significant attention for its myriad of uses, especially in the domains of personal care, soap making, and cosmetic production. Despite its name, it isn't the typical table salt. Instead, Epsom salt is a crystalline substance, admired for its therapeutic properties and contributions to product formulation.

Origins and Properties

Epsom salt's history can be traced back to the town of Epsom in Surrey, England, where it was initially discovered in natural springs. Comprising magnesium, sulfur, and oxygen, the salt is renowned for its myriad benefits. Its versatility stems from its unique properties, such as its ability to dissolve readily in water, releasing magnesium and sulfate ions.

Personal Care and Therapeutic Benefits

One of the most iconic uses of Epsom salt is in bath soaks. When added to bathwater, Epsom salt is believed to provide several benefits:

  • Muscle Relaxation: Magnesium, a primary component of Epsom salt, is known to play a crucial role in muscle function. Many people believe that an Epsom salt bath can help in relaxing muscles and alleviating soreness.
  • Skin Exfoliation: The granular texture of Epsom salt makes it an excellent exfoliating agent. When used as a scrub, it can help in removing dead skin cells, leaving the skin feeling soft and rejuvenated.
  • Stress Reduction: A warm bath enriched with Epsom salt can be a relaxing ritual, potentially aiding in reducing stress and promoting a sense of well-being.

Use in Soap Making

In the realm of soap making, Epsom salt finds its niche. Here are some of its notable contributions:

  • Texture and Appearance: When incorporated into soap bars, Epsom salt can give them a distinctive texture, adding an exfoliating quality to the product.
  • Mineral Enrichment: Epsom salt introduces beneficial minerals, mainly magnesium, to soaps. This can be a selling point for those who seek mineral-enriched skincare products.

Cosmetic Making

The cosmetic industry has not remained untouched by the charm of Epsom salt. Here's how it is utilized:

  • Face Masks: Epsom salt, when combined with other ingredients like clays or botanical extracts, can be a potent component of face masks, especially those targeting acne-prone or oily skin.
  • Hair Care: Some hair care formulations, especially scalp scrubs or treatments for oily scalps, might include Epsom salt. It can help in removing product buildup and potentially balancing scalp oil production.
  • Foot Soaks: Epsom salt's exfoliating and relaxing properties make it a prime ingredient in foot soaks, assisting in softening rough skin and providing relaxation.


The multifaceted nature of Epsom salt has secured its place in various personal care and cosmetic products. Whether it's a rejuvenating bath soak, an exfoliating soap bar, or a nourishing face mask, the benefits of this humble mineral compound are manifold. As the beauty and self-care industry continues to evolve, Epsom salt's enduring appeal ensures it remains a staple in many formulations, offering a harmonious blend of therapeutic and aesthetic benefits.

Epsom Salt Uses

Epsom salt, known scientifically as magnesium sulfate, is a versatile compound cherished for its diverse range of applications. Derived from mineral-rich waters, its uses span from household to horticulture and health to beauty.

Health and Wellness

  • Muscle Relaxation: Dissolving Epsom salt in a bath can aid in soothing muscle aches and pains, making it a go-to remedy for athletes and those with muscle soreness.
  • Stress Reduction: Magnesium plays a role in mood regulation, and an Epsom salt bath might help alleviate stress and promote relaxation.
  • Detoxification: Some believe that Epsom salt baths help draw out toxins, although scientific evidence for this claim is limited.
  • Constipation: Taken internally under appropriate guidance, Epsom salt can act as a laxative.

Beauty and Personal Care

  • Skin Exfoliant: Epsom salt's granular nature can help exfoliate the skin when used as a scrub.
  • Hair Volumizer: Mixed with conditioner, it can potentially reduce excess oils, giving hair more volume.
  • Acne Treatment: The salt's exfoliating and potential antibacterial properties can be beneficial for acne-prone skin.
  • Foot Soak: Epsom salt is popular for softening and soothing tired feet.

Household Uses

  • Cleaner: Its abrasive texture can assist in scrubbing tile and grout.
  • Fertilizer Supplement: Epsom salt provides magnesium, which some plants may require for optimal growth.
  • Pest Control: It can be used as a natural insecticide in some cases.
  • Fabric Softener Alternative: Some use Epsom salt as an eco-friendly alternative to commercial fabric softeners.


  • Plant Growth Booster: The magnesium in Epsom salt can be beneficial for plants, enhancing their growth and health.
  • Slugs and Pests: Sprinkling Epsom salt can deter slugs and some pests from invading gardens.
  • Tomato and Pepper Enhancer: These plants, in particular, benefit from the magnesium content, leading to juicier and healthier fruits.


From its therapeutic attributes to its functional household applications, Epsom salt remains a staple in many homes and industries. Its wide-ranging benefits and uses make it an invaluable compound for various needs.

Epsom Salt Benefits

Main Benefits of Epsom Salt

Muscle Relaxation

Soaking in an Epsom salt bath helps in relaxing the muscles and relieving pain, making it a popular post-workout choice.

Reduced Swelling

Epsom salt's natural anti-inflammatory properties can help reduce swelling and alleviate pain.

Skin Softening

Known for its exfoliating properties, Epsom salt can soften the skin and exfoliate dead skin cells.


Bathing in Epsom salt can help draw out toxins from the body, promoting overall health.

Stress Relief

Magnesium in Epsom salt can help produce serotonin, a mood-elevating chemical in the brain, leading to reduced stress and better mood.

Alleviation of Minor Aches and Pains

The soothing properties of Epsom salt can help with minor aches and pains, particularly for conditions like arthritis.

Improved Sleep

The relaxation effect extends to promoting better sleep, especially when used in evening baths.

Increased Magnesium Levels

Since the body can absorb magnesium through the skin, Epsom salt baths can be a way to increase body magnesium levels.

Reduced Skin Inflammation

For localized skin inflammation or minor wounds, an Epsom salt soak can offer relief and promote healing.

Enhanced Plant Growth

When used in gardening, Epsom salt can promote healthier plants by providing them with vital minerals.


Epsom Salt Bath: An Overview

What is Epsom Salt?

Epsom salt, scientifically known as magnesium sulfate, is a naturally occurring mineral compound. It's renowned for its myriad of health and wellness benefits when dissolved in warm water.

Benefits of Epsom Salt Bath

  • Muscle relaxation and soreness relief

  • Stress reduction through increased production of serotonin

  • Reduced swelling and inflammation

  • Skin softening and exfoliation

  • Alleviation of minor aches and pains

  • Detoxification as it helps in drawing out toxins

  • Improved sleep patterns

How to Take an Epsom Salt Bath

Begin by filling your bathtub with warm water. Add approximately 1 to 2 cups of Epsom salt, allowing it to dissolve completely. Submerge your body and soak for at least 12-15 minutes. For enhanced relaxation, consider adding a few drops of essential oils like lavender or eucalyptus.


Always consult with a healthcare professional before starting regular Epsom salt baths, especially if you have any existing health conditions or concerns. It's also essential to hydrate after the bath to replenish any lost fluids.

Epsom Salt for Plants

Epsom salt, which is a common name for magnesium sulfate, has gained popularity among gardeners and plant enthusiasts for its potential benefits to plants. This mineral compound is distinct from table salt, and its use in gardening is rooted in its rich magnesium content, a vital nutrient for plants.

Why Plants Need Magnesium

Magnesium plays a pivotal role in plant health and growth. As a central element in the chlorophyll molecule, it's crucial for photosynthesis, the process by which plants convert light into energy. Magnesium also aids in the creation of amino acids and assists with enzyme activities. A deficiency can hinder these processes, leading to reduced growth and less robust health for the plant.

Signs of Magnesium Deficiency

Magnesium deficiencies can manifest in several ways:

  • Leaf Curling: The edges of leaves might curl upward or become brittle.
  • Interveinal Chlorosis: Leaves display yellowing between the veins while the veins themselves remain green.
  • Reddish-Purple Leaf Tips: In some plants, a magnesium shortage can cause leaf tips to adopt a reddish or purplish hue.
  • Reduced Yields: For fruiting plants, a deficiency can result in fewer and smaller fruits.

Using Epsom Salt in Gardening

Epsom salt can be utilized in various ways to support plant health:

  • Soil Amendment: Before planting, Epsom salt can be mixed into the soil to enrich it with magnesium. This can be especially helpful in soils that have been depleted of their natural magnesium content.
  • Foliar Spray: Dissolved in water, Epsom salt can be sprayed directly onto plant leaves. This method allows for quick absorption of magnesium.
  • Transplant Recovery: Transplanting can stress plants. Soaking roots in an Epsom salt solution before planting can help reduce this shock.
  • Deter Pests: While not its primary use, some gardeners believe that Epsom salt can deter certain pests like slugs and beetles.


While Epsom salt can be beneficial, it's essential to use it judiciously. Overuse can lead to an imbalance of nutrients in the soil. It's always a good idea to test your soil first to determine its nutrient content before adding any supplements, including Epsom salt.


Epsom salt's potential benefits to plants are anchored in its magnesium content, an essential nutrient for optimal plant growth and health. While it's not a cure-all, when used correctly and in the right circumstances, it can be a useful tool for gardeners seeking to bolster their plants' well-being.

Benefits of Epsom Salt

Muscle Relaxation

Soaking in an Epsom salt bath can help soothe and relax sore muscles, providing relief after strenuous activity.

Stress Reduction

Epsom salt baths can elevate the levels of serotonin, a mood-lifting chemical in the brain, leading to a calmer mind and reduced stress.

Alleviation of Aches and Pains

The therapeutic properties of Epsom salt can assist in the alleviation of minor aches, pains, and stiffness in the body.

Skin Health

Epsom salt acts as a gentle exfoliant, helping to remove dead skin cells, softening the skin, and reducing skin inflammation.

Improved Sleep Patterns

The relaxation effect of an Epsom salt bath can contribute to better sleep, especially when taken in the evening.


When dissolved in warm water, Epsom salt can help draw out toxins from the body, promoting an internal cleansing.

Enhanced Recovery

For those with active lifestyles, Epsom salt baths can aid in muscle recovery and reduce inflammation from minor injuries.

Improved Nerve Function

Magnesium, a key component of Epsom salt, plays a crucial role in the proper functioning of nerves, muscles, and enzymes in the body.

Epsom Salt for Feet

Epsom salt, chemically known as magnesium sulfate, has been used for centuries as a versatile remedy for various ailments. Among its multitude of applications, it's particularly renowned for its benefits when used in foot soaks.

Benefits of Epsom Salt Foot Soaks

Submerging feet in an Epsom salt solution can offer numerous advantages:

  • Relieves Soreness: Epsom salt can help soothe and relax sore or aching feet, especially after long days of standing or walking.
  • Reduces Swelling: Its anti-inflammatory properties can aid in reducing swelling and discomfort in the feet.
  • Fights Foot Odor: The salt can neutralize foot odor, making it an excellent remedy for those who suffer from smelly feet.
  • Softens Skin: Epsom salt can exfoliate and soften rough or calloused skin, leading to smoother, healthier feet.
  • Fungus and Athlete’s Foot: While it's not a direct cure, soaking in Epsom salt can alleviate symptoms associated with fungal infections and athlete’s foot.

How to Prepare an Epsom Salt Foot Soak

Creating an Epsom salt foot bath is simple and requires minimal ingredients:

  1. Fill a basin or tub with warm water. Ensure it's large enough to comfortably submerge both feet.
  2. Add 1/2 to 1 cup of Epsom salt to the water.
  3. Stir the water until the salt dissolves completely.
  4. Submerge your feet and relax for 20-30 minutes.
  5. Once finished, dry your feet thoroughly, especially between the toes.

Additional Tips and Considerations

For an enhanced experience or specific needs, consider the following tips:

  • Essential Oils: Adding a few drops of essential oils, like lavender or eucalyptus, can enhance relaxation and provide additional benefits.
  • Frequency: While Epsom salt foot soaks can be beneficial, it's essential not to overdo it. Limit soaks to a few times a week unless advised otherwise by a professional.
  • Consultation: If you have any existing health conditions or concerns, it's always wise to consult with a healthcare provider before starting any new treatments.

Epsom salt foot soaks offer a simple, natural, and effective method to relax, rejuvenate, and restore one's feet. Whether it's daily stresses, physical exertion, or minor foot issues, Epsom salt can provide relief and promote overall foot health.

Epsom Salt and Tomato Plants

Role of Magnesium in Plants

Magnesium is a vital nutrient for plants, playing a crucial role in photosynthesis and the creation of ATP (adenosine triphosphate). Epsom salt, being magnesium sulfate, can be a source of magnesium for plants in deficient soils.

Benefits for Tomato Plants

  • Improved Photosynthesis: Magnesium aids in the formation of chlorophyll, which is essential for photosynthesis.

  • Better Fruit Production: Epsom salt can promote more vigorous growth and a higher yield.

  • Prevention of Leaf Curling: A magnesium deficiency can lead to leaves curling, and Epsom salt can help prevent this.

  • Strengthened Cell Walls: This can result in more disease-resistant plants.

How to Use Epsom Salt for Tomatoes

There are multiple ways to introduce Epsom salt to tomato plants:

  • Soil Mixing: Before planting, mix a couple of tablespoons of Epsom salt into the soil.

  • Foliar Spray: Dissolve a tablespoon of Epsom salt in a gallon of water and use it to mist plants every couple of weeks.

  • Direct Application: Sprinkle a tablespoon of Epsom salt around the base of the plant once a month.


While Epsom salt can be beneficial, it's essential to use it in moderation. Excessive use can lead to other nutrient imbalances in the soil. Always conduct a soil test before deciding on any treatment to determine the nutrient needs of your garden.

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Disclaimer: All product descriptions and specifications provided in this description are intended as a guide only and are subject to change without notice. While we strive for accuracy, discrepancies or errors may be present. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Texture was nice and finer than expected, which is a good thing. :) I ordered a 6 lb container. I use these for baths with a little essential oil, very relaxing. Shipping was very fast via ground but I do live locally to Soapgoods. I wish true breakables ordered from other companies would come wrapped in this much bubble wrap! This was my first order. I can get epsom salt at the regular grocery for about half the price but this salt seems to be finer and better quality, which will be great for the gifts I'm making. Container was sealed on top as were others which is nice. Great company, thanks.
I think I'm one of those people who believes that epsom salt can do no wrong (and I'm always right!). This is great product for making bath gifts for friends.
So much cheaper than you can find it in the stores, and it makes for a nice foot or whole body soak.
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Safety Data Sheet (Epsom-Salt-Magnesium-Sulfate-USP.pdf, 111 Kb) [Download]