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A Novel Quality Control Method for the Determination of the Refractive Index of Oil-in-Water Creams and Its Correlation with Skin Hydration

Adejokun, Deborah and Dodou, Kalliopi (2021) A Novel Quality Control Method for the Determination of the Refractive Index of Oil-in-Water Creams and Its Correlation with Skin Hydration. Cosmetic, 8 (3). pp. 74-79. ISSN 2079-9284

Item Type: Article

Abstract

The sensory properties of cosmetic products can influence consumers’ choice. The accurate correlation of sensory properties, such as skin hydration, with the material properties of the formulation could be desirable. In this study, we aimed to demonstrate a new method for the in vitro measurement of the refractive indices (RIs) of turbid creams. The critical wavelength of each cream was obtained through direct measurement using a sun protection factor (SPF) meter; the wavelength value was then applied in the Sellmeier equation to determine the RI. The results obtained from the in vitro skin hydration measurement for each cream correlated with their RI values. This suggests that RI measurements could be a useful predictive tool for the ranking of creams in terms of their skin hydration effects.

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More Information

Depositing User: Kalliopi Dodou

Identifiers

Item ID: 13876
Identification Number: https://doi.org/10.3390/cosmetics8030074
ISSN: 2079-9284
URI: http://sure.sunderland.ac.uk/id/eprint/13876
Official URL: https://www.mdpi.com/2079-9284/8/3/74

Users with ORCIDS

ORCID for Kalliopi Dodou: ORCID iD orcid.org/0000-0002-2822-3543

Catalogue record

Date Deposited: 01 Sep 2021 13:50
Last Modified: 25 Jan 2022 08:52

Contributors

Author: Kalliopi Dodou ORCID iD
Author: Deborah Adejokun

University Divisions

Faculty of Health Sciences and Wellbeing > School of Pharmacy and Pharmaceutical Sciences

Subjects

Sciences > Chemistry

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