I would not use Epsom's; except once in a great while (ok for baths). Epsom’s is not a full spectrum mineral salt like the others and is inherently less balanced.
Make sole. Better for you. Just take a pint jar and fill it 1/3 full with Himalayan or "Real Salt". Then fill the rest with good quality water; even distilled should work since you are putting a lot of trace minerals back in it. Then shake it up real well and let it stand overnight or until it looks really well mixed. If constipation occurs from detoxing, a stronger sole and water solution can be consumed. The salt nourishes the body, helps to reduce detox symptoms and acts as a laxative. I normally don't need to drink a lot at a time.