Sodium Cocoyl Isethionate

Characteristics of Sodium Cocoyl Isethionate

Sodium Cocoyl Isethionate (SCI) is a gentle, high-foaming anionic surfactant derived from fatty acids and sodium isethionate. Known for performing well even in hard water, it is highly valued in personal care for its mildness, low irritation potential, and ready biodegradability.

Far more than a basic foaming agent, SCI consistently creates a rich, creamy lather under conditions where other surfactants struggle—including low temperatures, water-scarce formulations, and slightly acidic environments. Because its molecular structure has a natural affinity for the skin, it cleanses without disrupting the skin's moisture barrier, avoiding the harsh, stripping effect typically associated with sulfates like SLS. It rinses away effortlessly, leaving no heavy residue behind—meaning your skin won’t feel slippery or unwashed, nor will it feel tight and dry. This perfect balance makes SCI a favorite base ingredient in artisanal soaps and solid shampoo bars, where it pairs beautifully with amino acid surfactants and betaines. It hits the "golden mean" of cleansing: powerful enough to remove impurities, yet gentle enough to prevent buildup or damage to the hair.

Properties:

Gentle & High-Foaming: Sodium Cocoyl Isethionate (SCI) is a mild surfactant that creates a rich, luxurious lather. It performs consistently well even in hard water or when mixed with traditional soap bases.

Temperature Stable: It maintains excellent stability in both hot and cold water.

Premium After-Feel: It is highly popular among consumers for leaving the skin feeling silky, soft, and hydrated after rinsing.

Versatile Daily Use: It is a staple ingredient in everyday personal care products like bar soaps, body washes, and facial cleansers.

Ideal for Facial Cleansers: Thanks to its ultra-mild nature and high fat content, it acts as an excellent conditioning agent that protects the skin's natural moisture balance.

Elevated Product Texture: It gives facial cleansers a beautiful pearlescent appearance and an abundant foam, ensuring a gentle cleanse with a velvety finish.

Here is where you will usually find Sodium Cocoyl Isethionate (SCI):