Salt of the Earth - Natural Deodorant Spray (50ml). Salt of the Earth classic crystal deodorant has been keeping customers dry and odour-free for over 20 years.. Hard-working, and comprising nothing but pure mineral salt, it remains a modern skincare classic.. Perfect for men and women alike, this unscented deodorant won't suffocate your pores, but instead sits on the surface of your skin, inhibiting the growth of odour-causing bacteria.