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DIY Make Up & Personal Care Supplies– Proudly Canadian-Owned • Based in Toronto
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INCI Name: Sodium Cocoyl Isethionate
Appearance: Off white powder (85% active)
Solubility: Dispersible in water (best combined with other surfactants)
Usage Rate: 5–60% depending on product type
Our ready to use high purity Sodium Cocoyl Isethionate (SCI) is a mild, solid anionic surfactant derived from natural coconut fatty acids. Known for its exceptionally gentle cleansing profile, it is a staple in modern syndet (synthetic detergent) formulations where both foam quality and skin mildness are required.
SCI is used at 5–20% in liquid cleansers and up to 60% in solid bars. It works best when combined with co-surfactants such as Coco Betaine or Sodium Lauroyl Glutamate for optimal performance and easier processing. Requires gentle heating to disperse in the aqueous phase or may be blended with other surfactants to form stable bases.
It’s a sulfate-free anionic surfactant prized for creating dense, creamy, low-irritation foam. It’s the backbone of many solid shampoos, syndet bars, and gentle facial cleansers.
Powdered SCI (85% active) offers maximum concentration and flexibility. It blends easily with other powdered surfactants for solid formats, unlike prilled or noodle grades which contain more binders and are trickier to handle in DIY or small-batch production.
SCI is dramatically milder. It cleanses effectively without stripping skin or hair lipids, making it suitable for baby products, facial cleansers, and sulfate-free shampoos. Foam is denser and creamier than the big, airy bubbles of sulfates.
It can work solo, but most formulas blend it with amphoterics like Cocamidopropyl Betaine or amino acid surfactants (like Sodium Lauroyl Glutamate) to boost foam, improve viscosity, and reduce dustiness in powders or bars.
SCI on its own can produce hard, brittle bars. Adding plasticizers (like glycerin, sorbitol, or Propanediol), co-surfactants, or fatty alcohols improves flexibility and reduces crumbling.
SCI has low solubility in water. It disperses better in hot surfactant solutions or with a co-surfactant system. For solid bars, pre-wetting with humectants or blending with faster-dissolving surfactants improves processing.
Not easily. SCI tends to form opaque systems due to low solubility. It’s better suited for creams, pastes, or solids. For clear liquid cleansers, glucosides or sulfosuccinates are better choices.
Yes. It’s derived from coconut fatty acids and is biodegradable. While not accepted in the strictest natural standards (like COSMOS without restriction), it’s widely used in “sulfate-free” and “eco-inspired” formulations.
SCI foam can be too creamy and dense on its own. Blending with amphoterics (like betaine) or adding a small amount of high-foam surfactant increases lather volume.
Crafts – DIY – Formulations
Proudly Canadian-Owned • Based in Toronto
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