Polyglyceryl-20 Octaisononanoate

Polyglyceryl-20 octaisononanoate is a synthetic surfactant derived from polyglycerin and fatty acids. It belongs to a class of mild cleansing agents designed to remove oils and impurities from the skin without excessive stripping.In skincare formulations, it functions primarily as a cleanser and emulsifier—helping to break down sebum and makeup whilst keeping water and oil-based ingredients evenly distributed throughout a product. It is commonly found in cleansers, micellar waters, and makeup removers.

Surfactants like polyglyceryl-20 octaisononanoate have a dual chemical nature—one end is attracted to oil, the other to water. This allows them to surround oil droplets and suspend them in water-based solutions, making it possible to rinse away makeup and sebum with water alone.Because it is considered a mild surfactant, it is designed to cleanse without severely disrupting the skin barrier, though thoroughness of rinsing and individual skin sensitivity remain important factors in overall tolerance.

This ingredient is typically encountered in rinse-off products such as cleansers, micellar waters, and makeup removers. Ensure thorough rinsing to remove all product residue. In leave-on formulations, it will be present at lower concentrations. If used in a cleanser, follow with appropriate toning and moisturising steps suited to your skin.

Polyglyceryl-20 octaisononanoate is generally well-tolerated and considered safe for cosmetic use. Those with sensitive or barrier-compromised skin should patch test, as with any new cleanser, and ensure thorough rinsing.