Sodium Cocoyl Isethionate (SCI)
SODIUM COCOYL ISETHIONATE (SCI)
Origin & Source
Sodium Cocoyl Isethionate is a mild, naturally derived surfactant created from fatty acids of coconut oil and isethionic acid, a compound derived from naturally occurring sulfur salts. While the ingredient undergoes controlled chemical processing to achieve its final form, its primary raw materials are plant-based. SCI has been used for decades in high-end personal care and dermatological formulations due to its exceptional gentleness and skin compatibility.
Chemical Structure & Cleansing Intelligence
SCI is an anionic surfactant, but unlike harsher sulfates (such as SLS or SLES), it has a larger, more skin-friendly molecular structure. This structure allows it to cleanse effectively without penetrating deeply into the skin or disrupting the lipid barrier. The coconut-derived fatty acid portion binds oils and impurities, while the isethionate component allows these impurities to be rinsed away gently with water.
Skin Function & Benefits
On the skin, Sodium Cocoyl Isethionate provides effective cleansing without stripping. It removes dirt, excess oil, and buildup while maintaining hydration and comfort. Because it preserves the skin’s acid mantle and does not aggressively remove natural lipids, SCI is especially suitable for sensitive, dry, acne-prone, and compromised skin. After cleansing, skin feels soft, smooth, and balanced—not tight or squeaky.
Formulation Role & Sensory Profile
In formulation, SCI is prized for its luxurious foam and creamy lather, even in hard water. It produces a dense, cushiony foam that feels indulgent rather than bubbly or harsh. Sensory-wise, it delivers a silky, velvety cleanse with excellent slip and rinse-off. SCI is commonly used in solid bars, powders, cleansing balms, and gentle liquid cleansers where sulfate-free performance is essential.
Typical Uses in Skincare & Body Care
Sodium Cocoyl Isethionate is widely used in facial cleansers, cleansing bars, body washes, shampoo bars, baby products, intimate care, and sensitive-skin formulations. It is particularly favored in solid or low-water products due to its stability and performance.
Why Unicorn Tears Uses It
Unicorn Tears uses Sodium Cocoyl Isethionate because it embodies cleansing without compromise. It allows products to feel indulgent, creamy, and effective while respecting the skin’s natural balance. As a coconut-derived, dermatologist-trusted surfactant with a proven safety profile, SCI aligns perfectly with the brand’s philosophy of intelligent formulation—where purity, performance, and skin comfort coexist.


