Epsom Salt (Magnesium Sulphate)
Naturally packed full of minerals, it has a much finer grain than sea salt. Most commonly recognised in bath salts/soaks, Epsom salt helps ease aches and pains. It almost feels a bit 'fizzy' on your skin.
Its quality of absorbing water quickly makes this a great addition to other mineral clays/salts to create a luxurious or medicinal soak.