Quality assessment of hair shampoos containing sugar-derived surfactants
Key words:
quality assessment, shampoos, natural cosmetics
Summary
The study attempts to evaluate selected quality characteristics of liquid hair shampoos according to Cosmetic Organic Standards (COSMOS) containing sugar-derived surfactants of sugar origin. For the purposes of this article, three formulas of stable cosmetics were developed, whose individual raw materials met the COSMOS requirements, established for cosmetic raw materials of natural origin. Individual formulas, with a constant percentage of the main components, differed in the mass ratio of sugar-derived surfactants used: Lauryl Glucoside (LG) and Coco Glucoside (CG) (1:3; 1:1; 3:1).
The following physicochemical measurements, which can be considered as characteristics of liquid shampoo quality, were evaluated: dynamic viscosity, foam stability index (FSI), ability to emulsify fatty soils and evaluation of consistency (hardness and adhesion force). The results obtained were related to the values obtained for a reference shampoo.
It was found that the mass ratios of used sugar-based surfactants significantly affect the studied quality characteristics. The application of Lauryl Glucoside (LG) and Coco Glucoside (CG) in a mass ratio of 3:1 allowed to obtain the highest values of dynamic viscosity, which correlated with the values measured for hardness and adhesion force of evaluated shampoos. In turn, the consequence of using these cosmetic raw materials in a mass ratio of 1:3 was a reason of a high ability to emulsify fatty soils, which can be translated into more effective washing abilities of shampoos. It is possible to formulate a generalisation that the change of LG and CG ratios used in the washing composition did not significantly affect FSI values, however, it is worth noting that all prepared shampoos met the requirements of the Polish Standard for measured parameter.
Prof. UTH dr hab. inż. Małgorzata ZIĘBA
Kazimierz Pulaski University of Technology and Humanities in Radom
Faculty of Chemical Engineering and Commodity Science
Department of Commodity Science and Quality Sciences,
26-600 Radom, Chrobrego 27, Poland
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