"Glycol" refers to divalent alcohol as the alcoholic component of this ingredient (ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol and others).

"Ester" or "esters" refers to an esterification product (condensation product of alcohol and acid) or a transesterification product obtained by direct reaction of alcohols with fats. Function(s) of this ingredient in cosmetic products
SKIN CONDITION
Maintains the skin in good condition
SKIN TREATMENT - Emollient
Softens and smoothes the skin
SURFACTANT - CLEANING
Surfactant for cleaning skin, hair and/or teeth
SURFACTANT - EMULIZING
Allows the formation of finely dispersed mixtures of oil and water (emulsions) https://cosmileeurope.eu/inci/detail/2236/c18-36-acid-glycol-ester/ https://www.glycol-ethers.eu/what -are-glycol-ethers/