Magnesium sulphate has many soothing properties

From an article on medicalnewstoday.com
An Epsom salt detox is a warm bath with Epsom salt that may help improve the body’s natural detoxification process and promote healing.

Including Epsom salt in a warm bath may help with relaxation and stress relief.

The two main ingredients of Epsom salt are magnesium and sulfate. It is believed the combination of both ingredients stimulates detoxification pathways.

Magnesium is a natural substance that aids a variety of bodily functions, including the removal of toxins. Sulfate can strengthen the walls of the digestive tract and make releasing toxins easier.

There is little scientific research documenting the detoxifying effects of Epsom salt. However, advocates of it argue that an Epsom salt detox bath may have the following benefits:

Read more