Assessment of Microbial Contamination and Metabolite Expo-sure in Cosmetic Products Used in Women's Beauty Salons
Abstract
Background: An important route of microbial transmission is the shared use of these products in beauty salons. We aimed to investigate level of contamination with microorganisms and their metabolites in shared-use cosmetics in several women's beauty salons.
Methods: Bacterial and fungal strains from 320 opened/used cosmetic samples were identified according to the Iranian standards for microbial quality of cosmetic products in Golestan Province (North of Iran) during Jul-Sep 2021. In order to assess production of toxins and protease by the predominant bacterial and fungal isolates, multiplex-polymerase chain reaction and the Lowry protein assay were performed, respectively.
Results: Microbial contamination was detected in 180 samples (56.5%), and the highest and lowest rates of microbial contamination were related to skin products (63.88%) and eye beauty products (20%), respectively. The highest level of S. aureus contamination (> 4,000 colony-forming units/g) was found in toner and face wash samples, and the highest level of C. albicans contamination was seen in lipstick samples (>20,000 colony-forming units/g). Only one (2%) S. aureus isolate produced staphylococcal enterotoxin B, while 3 out of 12 (25%) C. albicans isolates were able to produce protease.
Conclusion: The shared-used health and beauty products, face products, in the study area are heavily contaminated. Therefore, it is essential to store used cosmetics in dry and cool places, establish strict inspection regulations for cosmetic products before and after entering the market, and increase awareness of beauty salon workers regarding the appropriate use, sanitary control, and maintenance of health and beauty products.
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| Issue | Vol 53 No 5 (2024) | |
| Section | Original Article(s) | |
| DOI | https://doi.org/10.18502/ijph.v53i5.15599 | |
| Keywords | ||
| Microbial contamination Metabolite Health and beauty products Cosmetics | ||
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