Enhanced chlorhexidine skin penetration with 1,8-cineole.

Area of Science:

• Dermatology
• Microbiology
• Pharmacology

Background:

• Chlorhexidine (CHG) exhibits poor skin penetration.
• Understanding CHG's dermal absorption is crucial for effective antisepsis.

Purpose of the Study:

• To compare the depth of chlorhexidine (CHG) skin permeation.
• To evaluate the effect of 1,8-cineole on CHG skin penetration.

Main Methods:

• Ex-vivo study utilizing Franz diffusion cells with human skin.
• Quantification of CHG concentration in skin slices (100 μm increments to 2000 μm depth) via HPLC.
• Statistical analysis using repeated measures ANOVA.

Main Results:

• CHG concentration in skin was significantly higher (33.3%) when 1,8-cineole was included in the solution.
• The presence of 1,8-cineole demonstrated a statistically significant increase in CHG skin permeation (P=0.042).

Conclusions:

• 1,8-cineole, a component of eucalyptus oil, enhances chlorhexidine (CHG) skin delivery.
• Improved CHG penetration into deeper skin layers may reduce microbial load.
• This enhanced delivery holds potential for decreasing surgical site infection rates.