Ducray Kertyol PSO Shampoo for Chronic Dandruff and Itching, Psoriasis, 125mlPROPERTIES Red patches covered with varying degrees of scale appear on the scalp. This shampoo helps remove the scales and relieve redness and itching.HOW TO USE Apply to damp scalp. Clarify. Renew the application, leaving it to act for 3 minutes. Rinse thoroughly. Use 2 to 3 times per week for at least 6 weeks.COMPOSITION WATER (AQUA), SODIUM TRIDECETH SULFATE, GLYCERIN, CAPRYLIC/CAPRIC TRIGLYCERIDE, SODIUM LAUROAMPHOACETATE, SULFUR, SODIUM CHLORIDE, COCAMIDE MIPA, SALICYLIC ACID, FRAGRANCE (PARFUM), METHYLISOTHIAZOLINONE, SILICA, SODIUM SHALE OIL SULFONATE, TALC