The composition of the water of the Harkány hot spring, the amount of ions dissolved in 1 litre of water in milligrams: sodium 150, ammonium 1.53, calcium 51, magnesium 15, iron 0.05, potassium 12.0, total cations: 230.1, chloride 110, bromide 0, 32, iodide 0.07, fluoride 1.19, bicarbonate 565, sulfide 12.1, total. Phosphate 0.16, total anions: 689, metaboric acid 6.6, metasilicic acid 54, free sulfuric acid 170.
Carbonyl sulfide and hydrogen sulfide, as well as the compounds created from these, exert cellular biological activity, are highly effective at grabbing free radicals, and are a great antioxidant. Researchers confirmed an anti-inflammatory effect affecting potent cellular immune function. As a sulfur-containing medicinal water, it contains hydrogen sulfide. When oxidized in air, it precipitates in the form of sulfur colloid – this is reduced to hydrogen sulfide by the skin’s organic matter, absorbed, incorporated into acidic polysaccharides and thio-amino acids, and affects cellular metabolism. It improves the local blood flow to the tissues, thus increasing the circulation of the scalp. Thanks to the special combination of mineral salts, it has a unique moisturizing effect. Due to its high content of calcium and magnesium, it soothes sensitive skin while restoring the scalp barrier layer.