AI Article Synopsis
- A study analyzed 96 used personal care and topical OTC drug items from U.S. consumers for microbial contamination.
- Over 55% of eye and face products with global preservatives had high levels of microorganisms, while 79% of mascara products showed similar issues.
- The research found that products with global preservatives struggled to maintain adequate preservation compared to those with non-global preservatives, with common contaminants including various bacteria and yeast.
Article Abstract
Ninety-six used personal care and topical OTC drug items collected from consumers in the USA were examined for the presence of microbial contaminants. Of the eye and face product type containing global preservative chemistries (i.e., acceptable for use in Japan without major restrictions), 55% yielded numbers of microorganisms in excess of 500 CFU/g (P < 0.1814). For the mascara products with global preservative chemistries, 79% yielded numbers of microorganisms in excess of 500 CFU/g (P < 0.024). Products containing global preservative chemistries accounted for 88% (n = 14) of the products that had microbial contents above 10(4) CFU/g (P < 0.001). Prominent contaminants were species of Staphylococcus, Pseudomonas, Klebsiella, Streptococcus, Lactobacillus, Bacillus, Corynebacterium, and yeast. In general, under the stress of consumer use, products preserved with global preservative chemistries did not maintain as adequate preservation as products with non-global preservatives.
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| http://dx.doi.org/10.1007/s10295-008-0468-9 | DOI Listing |
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