Bioderma Sebium Moussant Purifying Cleansing Foaming Gel: Sebium gel moussant gently cleanses and purifies the skin without drying. It containing zinc sulphate and copper sulphate, it cleanses the epidermis, reduces the number of blemishes, and limits sebum secretion. Its ultra-gentle, soap free formula respects the skins balance. The physiological ph is maintained. The patented natural complex raised the skins tolerance threshold.