N-Hydroxysuccinimide

N-Hydroxysuccinimide is an amino acid derivative commonly used in eye care products to address dark circles. It works by helping to break down bilirubin and iron deposits that contribute to under-eye discolouration.

Often combined with chrysin and peptides in eye formulations, this ingredient targets the haemoglobin-derived pigments that cause dark circles from poor circulation or blood leakage.