The researchers wrote: 'Human body lice are blood-feeding parasites of their sole host, humans. 'The insects reside within the seams of human clothing where they lay their eggs, periodically ...

Isopropyl myristate (IPM) and cyclomethicone D5 do not have an effect on egg development. Only after the operculum (the opening the nymphal louse emerges from) begins to open (4–5 days ...