Disodium Ethylene Dicocamide PEG-15 Disulfate

Disodium Ethylene Dicocamide PEG-15 Disulfate is a synthetic surfactant derived from coconut fatty acids. It belongs to the sulfate family of cleansing agents and is primarily used in rinse-off products such as cleansers and shampoos rather than leave-on skincare.As a surfactant, this ingredient works to reduce the surface tension of water, allowing it to mix with oils and impurities on the skin or hair. It also contributes to foam production, which many people associate with effective cleansing, though foam itself is not a measure of cleaning efficacy.

This surfactant has two key parts: a hydrophobic (oil-loving) tail derived from coconut and a hydrophilic (water-loving) head. When applied to skin, the molecule orients itself at the oil-water boundary, surrounding oil droplets and allowing them to be rinsed away with water. This dual action makes it effective at cleansing without leaving a residue.The PEG-15 portion of the molecule influences how the ingredient behaves in formulation, affecting its mildness and solubility in water-based systems.

This ingredient is typically found in rinse-off products, so it should be used as you would any cleanser: apply to damp skin, work into a lather if desired, and rinse thoroughly with water. For sensitive skin, keep contact time brief and follow with a hydrating toner or moisturiser to maintain skin barrier health.

Generally recognised as safe for use in rinse-off formulations. Some individuals with sensitive or compromised skin barriers may find sulfates slightly stripping, particularly if used frequently or left on skin for extended periods.