The card does not speak of sensitive skin and contains no warnings. It describes sea salt with lavender and melissa essential oils; the manufacturer writes that the salt has a restoring effect and that the oils refresh and tone the skin. This has no confirmation. The list of ingredients (INCI) is not on the card.
General information (not a manufacturer's instruction): essential oils can sometimes cause irritation in people with sensitive skin and allergy; in case of sensitivity, try the salt first on a small area of skin.