Phospholipids are natural surfactants and emulsifiers consisting of an alcohol (like glycerin), one or two molecules of a fatty acid, and a phosphoric acid compound. Lecithin was the first identified phospholipid and the main source of it is from soybeans or egg yolks. Lecithin contains about 60% to 70% phospholipids. Lecithin softens and refattens the skin, offering a non-greasy, long lasting skin feel. These have a phosphate hydrophilic or water loving head and a hydrophobic (water hating) or lipophilic tails composed of fatty acids, which is why they can act as emulsifiers. (Reference, reference)

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