Exploring Innovations in Soap and Syndet Bar Formulations: A Comprehensive Review

Abstract

Soap has been used by humans since ancient times and was probably already known to the Sumerians. It is a fatty acid salt obtained from the reaction of a strong base with a fatty substance of animal (tallow) or plant origin (oil). Syndets are much more recent and have been in use for about a century. In the case of liquid syndets, they are mainly alkyl sulphates and their derivatives alkyl ether sulphates while isethionates and sarcosinates are more commonly found in solid syndets. Synthetic soaps and detergents are surfactants and, as such, they have detergent properties. The way soap works accounts for its antimicrobial properties. The manufacturing and evaluation of sop and syndet (synthetic detergent) bar includes several methods and techniques.