Dilinoleic Acid/Propanediol Copolymer

Dilinoleic Acid/Propanediol Copolymer is a slightly tacky, glossy emollient that is commonly used in lip products as it is soluble in lip product's favorite oil, castor oil; it sticks well to the skin (substantive) and gives a nice glossy appearance. 

It also often comes to the ingredient list (especially in non-lip products) combined with Phytosteryl Sunflowerseedate and Hydrogenated Vegetable Glycerides; in this case, the trio serves as a vegetable lanolin alternative, bringing rich emollience to the formula.