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1 Squalene is a component of some adjuvants that are added to vaccines to enhance the immune response. 2  MF59, an adjuvant produced by Novartis and added to the FLUAD flu vaccine, is such an example. 3  Squalene by itself is not an adjuvant, but emulsions of squalene with surfactants do enhance the immune response.hat is squalene? 1  Squalene is a naturally occurring substance found in plants, animals, and humans. 2  Squalene is also found in a variety of foods, cosmetics, over-the-counter medications, and health supplements. 3  Squalene is commercially extracted from fish oil, and in particular shark liver oil.
The Difference Between Squalane and Squalene Squalene isn't stable enough for use in products intended to be kept on the shelves for some time, like skin care products. Squalane is derived from squalene, and is the more stable form of this molecule, as well as being colorless and odorless.