Study of the colloidal stability and optical properties of sunscreen creams

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Published: Apr 25, 2019
DOI: https://doi.org/10.26850/1678-4618eqj.v44.2.2019.p26-36

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Gustavo Pereira Saito
Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara, SP, Brazil
Mariana Bizari
Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara, SP, Brazil
Marco Aurélio Cebim
Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara, SP, Brazil
http://orcid.org/0000-0001-8267-935X
Marcos Antonio Correa
Universidade Estadual Paulista (Unesp), Faculdade de Ciências Farmacêuticas, Araraquara, SP, Brazil
http://orcid.org/0000-0001-9229-3039
Miguel Jafelicci Junior
Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara, SP, Brazil
http://orcid.org/0000-0003-2574-9926
Marian Rosaly Davolos
Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara, SP, Brazil.
http://orcid.org/0000-0001-8326-1465

Abstract

Sunscreen formulations containing inorganic/organic filters or mixture of them were synthesized by oil/water dispersion. The viscosity measurements show that sunscreen formulations are time-dependent non-newtonian fluids. In the CIELab color diagram, the white and/or beige colors presented by formulations do not compromise the aesthetics of the cosmetic product. UV-VIS absorption spectra show that sunscreen creams have high UV shielding ability, mainly the formulations containing inorganic and organic filters mixtures, which provide in vitro SPF and critical wavelength values recommended for UV protection.

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How to Cite
Saito, G. P., Bizari, M., Cebim, M. A., Correa, M. A., Jafelicci Junior, M., & Davolos, M. R. (2019). Study of the colloidal stability and optical properties of sunscreen creams. Eclética Química, 44(2), 26–36. https://doi.org/10.26850/1678-4618eqj.v44.2.2019.p26-36
Issue
Vol. 44 No. 2 (2019): Eclética Química Journal
Section
Original articles
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Author Biography

Marian Rosaly Davolos, Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara, SP, Brazil.

Graduate in Chemistry from Universidade Estadual Paulista Júlio de Mesquita Filho (1975), master in Inorganic Chemistry from Universidade de São Paulo (1978) and Ph.D in Science, Inorganic Chemistry area, from Universidade de São Paulo (1983). Has experience in Chemistry, focusing on Inorganic Chemistry, acting on the following subjects: 1- Filters and sunscreens and 2- Luminescent Materials, involving rare earth complexes, LB organized films and scintillators.

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