Oleic acid, also referred to as Omega-9, is a colorless or pale yellow, odorless unsaturated fatty acid. It occurs naturally in sources such as animals, vegetable fats and oils. The most common vegetable sources of oleic acid include avocados, palm oil, olive oil, table olives, canola oil and others. On the other hand, its common animal sources are beef tallow, lard, etc. Oleic acid is present in an easily available product due to the ready availability of raw materials needed for its production. Oleic acid finds usage in various applications such as chemical intermediates, lubricants, detergents, surfactants, epoxy resin esters, emulsifiers and protective coatings, release agents and caulks & sealants, among others. As an emulsifier or surfactant, oleic acid is used in cosmetics and personal care products – it used for the manufacturing of lotions, lipsticks, creams, etc. Generally, oleic acid is an essential part of human diet as it is present in both vegetable oils as well as animal fats. It has also been proved that any diet containing the required amount of oleic acid can improve fasting plasma glucose, blood circulation and insulin sensitivity.