You can find
plain epsom bath salts at any drug or grocery store as well as many versions mixed with a variety of fragrance.
I believe you will be fine with
PLAIN epsom salts.
Not exact matches
You could just soak in
plain ol'
epsom salts, but why bother when you can pick one of these bath soaks to suit your specific needs?
I use
epsom salts — either
plain salt and I add scented bath oil to the water or lavender scented salts (I use Up & Up from Target).