Head lice assessment videos

Permethrin- and pyrethrin-resistance is seen here in live head lice 15 minutes after treatment with Nix®, as compared to an untreated control group.1

 
Untreated Lice
 
Treated with Nix®
 
Permethrin-Resistant Lice Treated with Natroba (Spinosad)
Source: Videos created in collaboration with J. Marshall Clark, et. al, and the Departments of Veterinary and Animal Sciences, Molecular Pharmacology, Microbiology, and Biochemistry and Molecular Biology at the University of Massachusetts, Amherst.

Head lice studies demonstrate resistance to pharmacy-aisle treatments

Today, head lice resistance to permethrin- and pyrethrin-based pharmacy-aisle products is >98% across 48 states.1-3

 
The Facts About Head Lice Are Irrefutable