Evaluation of Residual Antibacterial Effects on Canine Skin Surface and Hairs Following Treatment with Five Commercial Mousse Products Against Staphylococcus Pseudintermedius in Vitro
July 2022
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Studysummary In this study, researchers found that topical mousse treatments containing chlorhexidine and other active ingredients showed significant antibacterial effects on both skin and hair in short-haired dogs, but mainly on hair in long-haired dogs, suggesting hair evaluations might overestimate skin-level efficacy. Our plain-language summary of this paper — not a Tressless recommendation.
The study evaluated the residual antibacterial effects of five commercial mousse products on both the skin surface and hairs of short- and long-haired dogs against Staphylococcus pseudintermedius. The products were tested on 15 short-haired and eight long-haired dogs. Results showed that mousses containing 2% chlorhexidine and 2% miconazole, 3% chlorhexidine and 0.5% climbazole, and 2% chlorhexidine and 1% ketoconazole produced significant bacterial inhibition on both skin and hairs in short-haired dogs until Day 14. In long-haired dogs, these products inhibited bacterial growth on hairs until Day 14, but skin swabs from mousse 1 only showed inhibition until Day 4. The study concluded that evaluating hairs might overestimate bacterial inhibition on the skin surface, particularly in long-haired dogs.
