Evaluation of the Physical Stability of Sunscreen: Application of a Canonical Correlation Analysis for Relating the Temperature and Extensibility

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Author(s) J. A. Moreno Rodríguez | M. A. González Coronel | G. Carmona Gutierrez | M. González Flores | L. A. Moreno | Cortez J.I | E. Hernández Baltazar | M. A. Hernández Apam
Pages 454-460
Volume 1
Issue 9
Date September, 2012
Keywords TiO2, ZnO, sunscreen, UV radiation, cosmetics

In recent years, awareness campaigns on sun exposure have successfully changed the habits of many citizens. However there are people who still do not realize the serious health risks that they can cause the sun without adequate measures. Many times they are driven for the fashion for tanning the skin, but they not carry out the most basic precautions to the exposion the sun. Today people are aware that may have third degree burns and skin cancer when exposed to sunlight. We elaborate a sunscreen in the laboratory of Pharmacy, School of Chemical Sciences of the BUAP. It evaluates the physical stability, pH, their absorption in the ultraviolet and extensibility to 5 ° C, 25 ° C and 45 ° C, with the results obtained are considered two sets of variables: extensibility and room temperature. We will study the relationship between the two sets to determine if they both have a stake in the behavior of the cream, for this analysis will use the technique of Canonical Correlation Analysis is responsible for studying two groups of variables to determine the relationship through its maximum correlation, a situation that allowed us to determine that the behavior of the extensibility of the cream has a relationship with temperature.

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