At about the turn of the century, the natural fatty acid triglycerides used as oily components in cosmetics were replaced by low‐priced hydrocarbon oils of high purity. More recently the trend was reversed in Europe, and the hydrocarbon oils are being replaced by resynthesized triglycerides and liquid waxy esters derived from natural products. Apart from dermatological and toxicological safety aspects, the resynthesized triglycerides used are derived from natural fatty acids and may even be used as food additive constituents. These modern oily components are well suited for use in specialty applications and for solving problems in the formulation of cosmetics.
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H. P. Kroke (1978) studied this question.