Sodium Hydrolyzed Potato Starch Dodecenylsuccinate

Sodium hydrolyzed potato starch dodecenylsuccinate is a modified starch derived from potato. It is created by chemically treating potato starch with a hydrophobic (water-repelling) side chain, which allows it to function as a surfactant — a substance that helps oil and water mix together.In skincare formulations, it primarily serves as a foam booster and surfactant. This means it helps cleansing products create a stable lather and improves their ability to lift away oils and impurities from the skin. It is a relatively uncommon ingredient, appearing in approximately 0.1% of skincare products.

This ingredient works by reducing surface tension between oil and water. The modified starch molecule has both water-loving and fat-loving regions, which allows it to trap oil molecules and suspend them in water so they can be rinsed away.Its foam-boosting function creates fine bubbles during application, which aids the mechanical action of cleansing and contributes to the sensory experience many people expect from a facial wash or cleanser.

This ingredient is found almost exclusively in rinse-off products such as cleansers and face washes, where it works as part of a larger formulation. Simply use your cleanser as directed, and there is no need to adjust your routine based on this ingredient's presence. It is most effective when the product is emulsified with water during cleansing.

This ingredient is generally well-tolerated and has a long history of safe use in cosmetics. It is unlikely to cause irritation, though those with starch sensitivity should check the full ingredient list.