DERMA FACTORY Panthenol 2%  Mild Acidic Cleansing Bar is formulated with high content of 2% of panthenol and coconut-derived vegetable surfactant to strengthen skin barrier and moisturize skin with creamy, soft foam. D-panthenol is a pro-vitamin B5, and when absorbed into the skin, it turns into vitamin B5 to help protect and strengthen the skin barrier.