“Formulations of alcohols with chlorhexidine or povidone-iodine may have some added activity or persistency, which pure alcohols do not have.”
“If aqueous chlorhexidine or povidone-iodine is compared with various alcohols, then the immediate antimicrobial activity of the alcohols is significantly greater than that of the aqueous agents, by a factor of about 1 log (ie, a 10-fold difference).”