How does Baybit Lice Spray kill lice and nits? - The active ingredient of Baybit Lice Spray is dimethicone. This substance completely covers the area around the lice and blocks its respiratory and excretory holes. As a result, the louse cannot expel excess water from its body. It stays where it is without moving. Since Baybit Lice Spray immobilizes the head lice, the lice cannot feed and die of starvation. Head lice do not develop resistance to BAYBIT spray. Since BAYBIT Spray does not contain insecticide, there is no harm in using it repeatedly. It does not contain any solvents that may affect people with asthma. Baybit Flea Spray is perfect for children's safety. How to use Baybit Lice Spray? Intended for external use only. Step 1: Applying Baybit Lice Spray: The amount depends on the length and fullness of your hair. Apply the spray to your dry hair and massage it into the hair and scalp until the liquid is completely applied. Be careful not to let the spray come into contact with the eyes. After spraying, let it sit for eight hours. Warning: For very long and very full hair - more may be required to apply completely to hair and scalp. Step 2: Removing lice and nits by combing. Important: Hair must be combed to remove lice and nits. At the end of the first 20 minutes after applying BAYBIT lotion, comb your hair, forelock by forelock, with a lice comb. Step 3: After applying to all hair, wait for the hair to dry on its own. (do not use a dryer) BAYBIT Spray should remain on the hair for at least eight hours. Normal daily activities can be continued with sprayed hair. Check the hair or scalp regularly for the next 7 days for lice and/or nits. If you see lice or nits again - repeat the entire treatment.