What it is
Disodium succinate is the sodium salt of succinic acid, a small dicarboxylic acid. In cosmetic formulas it is used to buffer and stabilize pH, often paired with succinic acid as a buffer system. It is water-soluble and used at low levels.
Safety & warnings
As a simple, water-soluble organic acid salt used at low buffering concentrations, disodium succinate is generally well tolerated and is not associated with notable irritation or allergenicity. It is not an oil and is not comedogenic.
Origin & sourcing
Manufactured salt of succinic acid; succinic acid can be produced by fermentation or by synthesis.
Questions everyone asks
What is disodium succinate used for in cosmetics?
It is primarily a buffering agent that helps keep the product at a stable, intended pH.
Does it have any UV function?
No. It is a pH buffer and does not contribute to sun protection.