Sure result, we have used it many times, of course it requires repetition as expected and frequent combing with the comb.
It greases the hair enough, it requires a very good shampooing to remove it but we intentionally left them a little greasy.
Be careful with the eyes. And on the skin on the face. At night, if the hair is still a little greasy, it is better to put a cotton hat or something else so that the hair does not rub against their face at night.
Comb: we concluded that it is not the most convenient on the market. We found one with longer and thicker teeth in a well-known chain of toy stores, etc.
Lice: adults do not die easily. Make sure you applied it for a long time and combed well. And if you had many, continue searching for them in the following days, of course with repetition. They can survive up to 72 hours outside the head (we did an experiment the first time we got infected). Follow the recommended cleaning protocol. Also, they don't die in the washing machine!! (I found them walking fine on the washed blanket!) It's better to use a dryer or iron or seal them in a bag for 2 weeks, etc.
Advice: frequently search for the children on the forehead, behind the ears, etc. with good daylight. It's better to catch them when they have 1-2 instead of a whole colony.
Don't hesitate to notify the school or other institutions. If they don't treat everyone, the lice will spread everywhere. Besides, "clean heads go to clean places," no one will misunderstand you