Disodium Succinate

Disodium succinate is a synthetic ingredient derived from succinic acid, a naturally occurring organic compound. In skincare formulations, it functions primarily as a surfactant and masking agent — meaning it helps to cleanse the skin by breaking down oils and impurities, and can mask unpleasant odours from other ingredients in a formula.As a surfactant, it works by reducing the surface tension of water, allowing it to mix with oily substances and be rinsed away more effectively. It is found in a relatively small proportion of skincare products, typically at low concentrations.

Disodium succinate works as a surfactant by positioning itself between water and oil molecules. One end of the molecule is attracted to water whilst the other is attracted to oils, allowing it to suspend oily dirt and makeup so they can be rinsed away with water. This dual affinity makes it useful in cleansers and emulsified formulations.As a masking agent, it simply helps to neutralise or cover undesirable odours that may arise from preservatives, actives, or other raw materials in the formula.

Disodium succinate is a supporting ingredient rather than a standalone active, so it is used as directed within a full product formulation. It appears in cleansers, makeup removers, and emulsified serums. Follow the usage instructions of the product containing this ingredient; it is typically suitable for daily use when part of a gentle cleanser.

Disodium succinate is generally well-tolerated in cosmetic concentrations. As a surfactant, it may cause irritation in very high concentrations or with prolonged contact, though this is unlikely at typical skincare levels. Those with very sensitive or compromised skin barriers should patch-test products containing this ingredient.