Influence of Personal Factors on Health-Promoting Behavior in College Students: A Structural Equation Modeling Approach.

Purpose: This study aimed to determine how personal factors influence health-promoting behavior in university students using a structural equation modeling approach guided by the Health Promotion Model.

Patients And Methods: An analytical cross-sectional study was conducted. The study included 763 health science students from four universities in Cali, Colombia, who answered a questionnaire on personal factors and Health Promoting Lifestyle Profile II, Spanish version, which was validated in the study population.

Body-decorating products: Ingredients of permanent and temporary tattoos from analytical and european regulatory perspectives.

This review summarizes the current regulatory status of tattoos in all their versions in the European Union framework, as well as the analytical approaches developed so far to control the safety of this type of products. Publications from the last two decades (2000-2019) have been reviewed in which body-decorating products have become more and more popular. Tattoo inks, permanent make-up, sticker tattoos, and henna-based products are covered.

Simultaneous determination of preservatives and synthetic dyes in cosmetics by single-step vortex extraction and clean-up followed by liquid chromatography coupled to tandem mass spectrometry.

A simple methodology based on vortex extraction (VE) followed by liquid chromatography tandem mass spectrometry (LC-MS/MS) has been developed for the simultaneous analysis of 22 regulated preservatives and synthetic dyes in cosmetics. The extraction procedure was performed in an Eppendorf tube allowing both extraction and clean-up in a single step, reducing sample and reagents consumption, and resulting in an effective and quick extraction. The method exhibited good linearity (R ≥ 0.

Miniaturized matrix solid-phase dispersion followed by liquid chromatography-tandem mass spectrometry for the quantification of synthetic dyes in cosmetics and foodstuffs used or consumed by children.

Miniaturized matrix solid-phase dispersion (MSPD) followed by liquid chromatography tandem mass spectrometry (LC-MS/MS) has been proposed for the simultaneous analysis of different classes of synthetic dyes in confectionery and cosmetics intended for or mostly consumed by children. Selected compounds include most of the permitted dyes as food additives as well as some of the most frequently used to color cosmetic products in accordance with the respective European directives. MSPD procedure was optimized by means of experimental design, allowing an effective, rapid and simple extraction of dyes with low sample and reagents consumption (0.

Positive lists of cosmetic ingredients: Analytical methodology for regulatory and safety controls - A review.

Cosmetic products placed on the market and their ingredients, must be safe under reasonable conditions of use, in accordance to the current legislation. Therefore, regulated and allowed chemical substances must meet the regulatory criteria to be used as ingredients in cosmetics and personal care products, and adequate analytical methodology is needed to evaluate the degree of compliance. This article reviews the most recent methods (2005-2015) used for the extraction and the analytical determination of the ingredients included in the positive lists of the European Regulation of Cosmetic Products (EC 1223/2009): comprising colorants, preservatives and UV filters.

Determination of dyes in cosmetic products by micro-matrix solid phase dispersion and liquid chromatography coupled to tandem mass spectrometry.

A simple method based on micro-matrix solid phase dispersion (MSPD) followed by liquid chromatography-mass spectrometry (LC-MS/MS) has been developed for the rapid and simultaneous determination of nine regulated water-soluble dyes in personal care and decorative products. The proposed miniaturized extraction procedure was optimized by means of experimental designs in order to obtain the highest extraction efficiency. Under the optimal selected conditions, the method was validated showing satisfactory performance in terms of linearity, sensitivity, and intra-day and inter-day precision.

Development of a multianalyte method based on micro-matrix-solid-phase dispersion for the analysis of fragrance allergens and preservatives in personal care products.

An effective, simple and low cost sample preparation method based on matrix solid-phase dispersion (MSPD) followed by gas chromatography-mass spectrometry (GC-MS) or gas chromatography-triple quadrupole-mass spectrometry (GC-MS/MS) has been developed for the rapid simultaneous determination of 38 cosmetic ingredients, 25 fragrance allergens and 13 preservatives. All target substances are frequently used in cosmetics and personal care products and they are subjected to use restrictions or labeling requirements according to the EU Cosmetic Directive. The extraction procedure was optimized on real non-spiked rinse-off and leave-on cosmetic products by means of experimental designs.