Isolation of Staphylococcus aureus from Some Cosmetics Products and their Relationship to Acne in Women Visiting Beauty Salons in Mukalla City

Abstract

Background: While cosmetics are widely used for enhancing appearance, improper handling and storage can make them sources of microbial contamination and skin issues.

Objective: This study aimed to isolate and identify Staphylococcus aureus from cosmetic products in Mukalla, Yemen, and investigate its association with acne in female users. Forty product samples were collected from four beauty salons in the period from December 2024 to February 2025.

Methods: Samples were collected with sterile swabs, cultured on blood agar, and identified via morphological, microscopic, and biochemical tests. Questionnaires administered to salon staff and clients assessed potential risk factors. Data were analyzed statistically.

Results: Overall, 37.5% of cosmetic samples were contaminated with S. aureus, with blush showing the highest rate (12.5%). Women aged 15–25 years were most affected and most prone to acne. Statistical analysis (p < 0.05) indicated a significant link between clients' hygiene practices and reported skin problems, such as facial irritation and redness.

Conclusion: Contaminated cosmetics, particularly blush, can transmit S. aureus to the skin. Microbial colonization and toxin production may lead to inflammation, resulting in acne and other skin infections.