Eucerit® was the first product patented by Isaac Lifschütz for the Beiersdorf company in 1900.

This is lanolin alcohol used until today by NIVEA for skin protection. Lanolin is a mixture of fatty acids and cholesterol, a wax from the glands of the woolly fleece of sheep where it has an emollient and protective function and is included in cosmetic products to moisturise the skin.

Eucerit, now more commonly known as Eucerin, was a revolutionary emulsion developed more than 100 years ago that is still popular and in common use today. The initial formulation is still the basis for a relevant global product line that holds significant market share today. The concept for Eucerin was originally developed in Germany by Dr Isaac Lifschütz, who helped develop Eucerin, meaning "beautiful wax," in 1898. The ointment was very smooth, allowing Eucerin to develop as a stable emulsion. Eucerin was revolutionary and outperformed all of its predecessors in emulsion stability, moisturizing ability, its ability to resist degradation, and its cost-effectiveness (1).

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(1) Anwar Y, Lowenstein EJ. Eucerin: A Revolutionary Formulation Still Going Strong for Over a Century. Skinmed. 2016 Dec 1;14(6):437-439.