Ultra Epsom®

Premium Epsom Salt Multiple Grain Sizes Available

by SaltWorks


In stock: Usually leaves our facility within 24-48 hours



Ultra Epsom® Salt is the highest quality, pharmaceutical grade Epsom salt available. Ultra Epsom Salt brand of magnesium sulfate, exclusively from SaltWorks®, is known for its exceptional purity and therapeutic value. It dissolves easily, perfect for soothing sore muscles, relaxing soaks, and calming foot baths. Create body scrubs, bath salts and much more with the new range of grain sizes available. Add Ultra Epsom Salt to your garden for lush, green lawns, roses and vegetables. Ultra Epsom Salt is affordably priced and offered in bulk in several unique grain sizes for multi-purpose use.

Fine Grain: Ideal in bath salt and salt scrub recipes, Ultra Epsom Salt in Fine grain is also good to use in bathing, gardening and as a sore muscle soak.

Medium Grain: Ultra Epsom in Medium grain is a crystal size that works well for bath salts, body scrubs, sore muscle soaks and in gardening.

Coarse Grain: Coarse Ultra Epsom is a large grain crystal that is good for gardening, homemade bath salts and as a sore muscle soak.

Certified Authentic

All-Natural Product

Kosher Certified


Salt Name Ultra Epsom
Salt Description Magnesium Sulfate
Scent Unscented
Brand SaltWorks
Ultra Epsom Salt is rated 5.0 out of 5 by 237.
Rated 5 out of 5 by from So glad I discovered SaltWorks' Ultra Epsom Salt! I bought 50 lbs. of the fine grain 2 weeks ago, and have already ordered another 50 lbs.! I never dreamed that there would be such a difference in the Epsom salt I bought in the local CVS or Walgreen's and the salt I purchased from SaltWorks, which dissolves in the warm water so much faster and actually sparkles! I am even giving a 3 lb. sample to a friend so that she can discover the difference. Now we are also ordering the Dead Sea Salts, which are on sale this Christmas season. Highly recommended, esp. for its therapeutic value on sore leg muscles!
Date published: 2016-12-18
Rated 5 out of 5 by from Best Salt For Recovery On The Market I own a boxing gym and was gifted a 50lb. bag of Ultra Epsom Salt (Extra Fine Grain). All of my fighters soak with it to reduce their muscle soreness and speed up recovery. This stuff is the best on the market. I also soak my body twice per week for 30 minutes as I suffer migraines from a lack of magnesium. My body absorbs magnesium optimally transdermally (through skin). I give this product 5 stars because of what my entire gym and myself have experienced over the last 2 years of using it. Our fighters recover faster and my migraines are gone.
Date published: 2017-10-27
Rated 5 out of 5 by from Fine grain Epsom salt Perfect product and inexpensive in bulk.. I use it in 5he bath @nd around my pecan trees... I am s@ving hundreds buying thi# twice a year... instead in cosmetics or pharmacy or garden store ay 3.00$ plus a pound.. and shipping was quick enough and free.
Date published: 2018-01-13
Rated 5 out of 5 by from very happy with this Epsom Salt We bought the Ultra Epsom Salt 50 pound bag {fine grade} and it has worked very well for healing salt baths. We use 2 cups for each bath. It really helps to relax our muscles and detoxify. I have also added a tsp. to my drinking water to cleanse that way occasionally. Our bag is near empty and we will continue to use this product, I returned to the seasalt.com website today to order another 50 pound bag. I am very happy with this products and grateful to have found this site.
Date published: 2016-11-06
Rated 5 out of 5 by from Best for fibromyalgia I have frequent deep muscle and joint pain due to fibromyalgia. When my symptoms assert themselves, I soak in a very hot bath with 6 to 8 cups of this extra fine epsom salt and the next day I can function again. It's so fine that it dissolves quickly and it feels much cleaner in my body than the grocery store epsom salt I had been using. I live on an extremely limited budget but I make cuts elsewhere so that I can afford 50lb bags of this stuff. If I don't use it, I suffer.
Date published: 2017-09-26
Rated 5 out of 5 by from Soothing I have an autoimmune disease that has attacked the muscles in my lower body. After doing my therapy, my doctor advised me to soak in epsom salt with a few other ingredients and it makes the difference between functioning and not functioning after therapy. I just ordered my second go around with 2 25# bags since the 50 wasn’t available. This has been a big help to my feeling better so I appreciate the process and the time it takes to put on the market. Thank you.
Date published: 2017-10-08
Rated 5 out of 5 by from This stuff is magical I have been buying and sharing 50lb bags of Epsom salt from salt works for a few years now. It is effective beyond another brand I have used plus it is beautifully fresh anf clean. My aches and stress melt away in every bath. Using it in compresses with turmeric has healed my own skin occasional eruptions AS WELL as healed abscesses on our cat and several dogs I have cared for over the years. This is a solid buy and I hope I can access it for the rest of my days.
Date published: 2017-10-07
Rated 4 out of 5 by from Top quality Bought a 50 pound bag and a 5 pound bag last month. Arrived fast and packaged well. The salt is high quality. I prefer the ultra fine now that I've gotten a chance to experience it. I docked this product one star because the large bag isn't resealable and makes it difficult to store and use without making a mess. The smaller bag is resealable. I would recommend to others and will definitely consider buying more.
Date published: 2016-12-22
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