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Investigation on the use of expired make-up and microbiological contamination of mascaras

Synopsis Objectives This study investigated the habits of female students regarding make‐up use, and quantifies the microbiological contamination of mascaras worn by this population. Methods To this end, 44 students answered a structured questionnaire to evaluate the use of expired make‐up, shared u...

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Bibliographic Details
Published in:International journal of cosmetic science 2013-08, Vol.35 (4), p.375-380
Main Authors: Giacomel, C. B., Dartora, G., Dienfethaeler, H. S., Haas, S. E.
Format: Article
Language:English
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Summary:Synopsis Objectives This study investigated the habits of female students regarding make‐up use, and quantifies the microbiological contamination of mascaras worn by this population. Methods To this end, 44 students answered a structured questionnaire to evaluate the use of expired make‐up, shared usage and reports of adverse effects. Subsequently, make‐up samples were collected to check the manufacturing registration and the expiration date and its visibility on the label. The total counts of microorganisms and identification of Pseudomonas aeruginosa and Staphylococcus aureus in mascara samples collected were performed as described in the Brazilian Pharmacopea (4th edition) Results According to the results obtained, 97.9 % (43/44) of participants reported that they use or have previously used make‐up after the expiration date, with mascara being the most frequently mentioned product. It was observed that on the sample collection date, 70.5% (31/44) of the students had some type of expired make‐up. The microbiological analysis of 40 mascara samples revealed 2.54 ± 1.76 104 UFC mL−1 bacteria and 2.55 ± 1.54 104 UFC mL−1 fungi. Analysis revealed the presence of S. aureus in 79% of samples and of P. aeruginosa in 13%. Conclusion The results are interesting because they show that women tend to continue to use make‐up beyond the expiry date. Frequently, these products have a high level of contamination with pathogenic microorganisms. Résumé Objectifs Cette étude a examiné les habitudes des étudiantes concernant l'utilisation de maquillage, et de quantifier la contamination microbiologique des mascaras portés par cette population. Methodes À cette fin, 44 étudiants ont répondu à un questionnaire structuré pour évaluer l'utilisation de maquillage expiré, utilisation partagée et des rapports d'effets indésirables. Par la suite, des échantillons de maquillage ont été recueillis pour vérifier l'inscription de fabrication et la date d'expiration et sa visibilité sur l'étiquette. Resultats Les chiffres totaux des micro‐organismes et l'identification de Pseudomonas aeruginosa et de Staphylococcus aureus dans des échantillons de mascara recueillis ont été réalisés comme décrit dans la pharmacopée brésilienne (4e édition). Selon les résultats obtenus, 97,7% des participants ont déclaré qu'ils utilisent ou ont déjà utilisé du maquillage après la date d'expiration, avec le mascara en tant que produit le plus fréquemment mentionné. Il a été observé qu'à la date du prélèvem
ISSN:0142-5463
1468-2494
DOI:10.1111/ics.12053