Minerals including potassium, magnesium, selenium, sulfur, zinc, iodine, iron, and, of course, sodium are abundant in seawater. A plunge in the water is comparable to giving your skin a mineral bath. In fact, medical professionals frequently advise patients with eczema or psoriasis to take a bath in seawater to soothe their itchy, inflamed skin. You may visit the beach and reap the same advantages, or you can stay home and take a sea-salt bath and treat yourself to a dead sea mud mask, either way check out the benefits of seawater for your skin.