Egg oil

[4] Modern methods of production include liquid–liquid extraction[5] using common solvents such as hexane,[6] petroleum ether, chloroform, and ethanol.

Unlike traditional egg oil produced by heat, solvent extracted product also contains immunoglobulins,[7] which are destroyed at higher temperatures.

Egg yolk has been used in traditional cosmetics since the eleventh century in Jewish, Greek, Arab, and Latin cultures.

[citation needed] Egg oil can be used as an excipient/carrier in a variety of cosmetic preparations such as creams, ointments, sun-screen products, or lotions where it acts as an emollient, moisturizer, anti-oxidant, penetration enhancer, occlusive skin conditioner, and anti-bacterial agent.

[12] In the 16th century, Ambroise Paré used a solution of egg yolk, oil of roses, and turpentine for war wounds, an old method that the Romans had discovered 1000 years before him.