Pei-45 (inci)

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Definition
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PEI is the acronym for polyethyleneimine, a polymerized ethyleneimine, also called aziridine, a cyclic secondary amine. The number after "PEI-", here 45, indicates the average number of monomer units - CH2-CH2-NH-. This mixture of substances is used in cosmetic formulations. It acts as viscosity regulator (increases or decreases the viscosity of cosmetic products).

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Last updated on: 29.10.2020

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