Apply sufficient amount of gel to dry hair; wait 10 minutes. Rinse thoroughly. Use provided comb to remove lice and eggs. Shampoo and condition hair. Repeat if lice still present after 7–9 days.

(Side note: highly recommend a lice removal salon if you can swing it ... My husband actually commented that these combs were far more effective than the ones that come in the over-the-counter lice ...