Hinokitiol has a broad range of biological activities, many of which have been explored and characterised in literature. The first, and most well known, is the potent antimicrobial activity against many bacteria and fungi, regardless of antibiotic resistance.[5][6] Specifically, Hinokitiol has been shown to be effective against Streptococcus pneumoniae, Streptococcus mutans and Staphylococcus Aureus, common human pathogens.[7][8] Additionally, Hinokitiol has been shown to possess inhibitory effects on Chlamydia trachomatis and may be clinically useful as a topical drug.[9][10] More recent studies have shown that Hinokitiol also demonstrates anti-viral action when used in combination with a zinc compound against a several human viruses including rhinovirus, coxsackievirus and mengovirus.[7]