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Incidence of fungi in shared-use cosmetics available to the public
P B Mislivec1, R Bandler, G Allen
1U.S. Food and Drug Administration, Division of Microbiology, Washington, DC 20204.
Abstract:
A survey was conducted to assess both the potential health risk from shared-use cosmetics caused by microorganisms and the microbial efficacy of preservatives in cosmetics. Samples of 3027 shared-use cosmetic products were collected from 171 retail establishments nationwide. Fungi were present in 10.4% of the products, and 3.9% contained fungal pathogens or opportunistic pathogens. The 423 fungal isolates identified represented 33 genera and at least 69 species. A disproportionately large share of the fungal isolates were from eye products; fewer were from lip products. Pathogenic or opportunistic pathogens made up 32.2% of the fungal isolates. A slightly lower percentage of samples that contained preservatives had fungi, a fact suggesting that preservatives reduce the incidence of fungi in cosmetics. Results of this survey indicate potential microbiological problems concerning the safety of shared-use cosmetics.
Insights
Microbial contamination, including dangerous fungi, is a significant risk in shared-use cosmetics. Preservatives may help reduce fungal presence, but overall safety concerns remain for these cosmetic products.
Area of Science:
- Microbiology
- Cosmetic Science
- Public Health
Background:
- Shared-use cosmetics present a potential route for microbial transmission.
- Assessing the microbiological quality of cosmetics is crucial for consumer safety.
- The efficacy of preservatives in preventing microbial growth in cosmetics requires evaluation.
Purpose of the Study:
- To determine the prevalence of microorganisms, particularly fungi and pathogens, in shared-use cosmetics.
- To evaluate the effectiveness of preservatives in inhibiting microbial contamination in cosmetic products.
- To assess the potential health risks associated with microbial contamination in shared-use cosmetics.
Main Methods:
- A nationwide survey of 3027 shared-use cosmetic products from 171 retail locations.
- Microbiological analysis to identify and quantify fungal presence and types.
- Comparison of fungal incidence in products with and without preservatives.
Main Results:
- Fungi were detected in 10.4% of surveyed cosmetic products.
- 3.9% of products contained fungal pathogens or opportunistic pathogens.
- Eye products showed a higher proportion of fungal contamination compared to lip products.
- Pathogenic or opportunistic fungi constituted 32.2% of all fungal isolates.
- Products containing preservatives exhibited a lower incidence of fungal contamination.
Conclusions:
- Shared-use cosmetics pose potential microbiological risks to consumer health.
- Preservatives appear to reduce the likelihood of fungal contamination in cosmetics.
- Further investigation into cosmetic safety and microbial control is warranted.