Sodium Cocoyl Isethionate (SCI) for Mild Cleansing & Shampoo Bars Bulk Sodium Cocoyl Isethionate for shampoo bars, syndet bars, facial cleansers and sulfate-free personal care formulations. Sodium Cocoyl Isethionate, commonly known as SCI, is a mild anionic surfactant valued for its dense, creamy foam and comfortable skin feel. It is especially popular in solid shampoo bars and syndet cleansing bars, …