This is a dark clay ideal for face masks and mud mask applications. Its color ranges from light gray/green to dark gray. Due to its high content of minerals, sea clay draws oils from the skin, and is rich in algaes, macro- and micro-minerals, as well as sodium and sulphur. Sea plants, seawater, sea salt and oceanic clay have long been popular physical-therapy ingredients in Europe. Recommended as medical therapeutic agents as early as 1578, seawater and sea derivatives were administered for rheumatism and general rehabilitation. To make a facial clay, add distilled water to a small amount of clay. Other additives you may add to a facial mask instead of distilled water are plain yogurt, honey, liquid vegetable glycerine, whipped egg whites or mayonnaise. Apply with clean fingers to clean skin, let dry 15 to 20 minutes, rinse off with warm water, pat skin dry, repeat once a week if necessary. Clay masks will draw out impurities and toxins and may help with acne and similar skin conditions.