Great Video from Mountain Rose Herbs YouTube Channel.
I jotted down the recipe from the video and here it is:
1 cup dead sea salt, 1 cup coarse sea salt, 1 cup white Kaolin cosmetic clay, 1/2 cup Epsom salt, 1/2 Borax (sodium borate), 1/2 cup baking soda, and 1 teaspoon lavender essential oil.
Mountain Rose Herbs sells the ingredients, Bulk Apothecary is good...and you can do a google too. Check Amazon, as I love their free prime shipping!