NYDA Pump Spray 100ml Nyda Pump Spray is based on dimeticone. The spray causes adult head lice, larvae & eggs to suffocate & works in just one application, if applied as directed. Nyda is designed to kill headlice in one minute, & eggs in 8 hours. Nyda is suitable for children aged 2 or over. How to use it Apply to dry hair. Spray the hair roots thoroughly. Massage the spray into the hair, until it is completely wet & leave it in for 30 minutes. After 30 minutes use the comb provided to remove the dead lice & larvae. Leave the spray on the hair for at least 8 hours (e.g. overnight), this will suffocate the head lice. Wash the hair with regular shampoo. Hair should be re-checked after 8-10 days to make sure that the head lice are gone & that no further treatment is necessary. If necessary the application should be repeated as described above. Active Ingredients Dimeticone, medium-chain triglycerides, jojoba wax, fragrances. Warning Nyda must not be used near open fire or incandescent objects (for example hair dryers). Keep Nyda away from heat & ignition sources & do not smoke during the treatment.