Natroba
"Natroba killed the live lice and also the eggs in my child's hair.  Only one treatment was necessary.  I highly recommend this product and willl use it again in the future as it works quickly and is very effective.  The only issue is that the egg casings are left in the hair.  We have an issue with the school sending notes home stating my child has nits, when in fact, there are no viable nits in her hair."