Bath salt is made of very pure sea salt. Bath salt is available in different grain sizes (varying from fine up to very coarse) and it's suitable for adding oils, pigments and fragrances.
Bath salts are used in the bathing culture for centuries, long before the use of soaps and other bath products (fabricated on the basis of detergents). Bath salts are one of the few cosmetic products of which the hydrating effect is proved. Moreover, bath salts, made from sea salt, have a relaxing and beneficial effect on skin and body because of its rich composition (contains minerals and trace elements).