NCBI ROFL: Nothing like a thin coat of earwax to keep the bugs away.

Earwax (cerumen) might be formulated into a safe and biodegradable insect repellent "Some of the most common life threatening insect-borne diseases include malaria, leshmaniasis and yellow fever which can be prevented or treated with different non-therapeutic/therapeutic procedures such as use of mosquito net, insect repellent (IR), vector controlling strategies, vaccination and implementation of pharmaceuticals. Among these methods IR provides the cheapest and easiest one to use. Active ingredients of IR usually include N,N-diethyl-3-methylbenzamide (DEET), botanical extracts and picaridin. However still some concerns remain e.g. DEET is not biodegradable, has side effects on skin, cardiovascular and central nervous system and is not applicable in under 3 years old children and animals. Cerumen is produced by glands that are located on the outer third of the ear canal, has a characteristic of bitter taste and protection of ear which is known as IR, bactericide, fungicide and antivirus. It has lipidic and non-lipidic ...