Simply spray hair throughly and allow to air dryn100% Guaranteed and is effective killing lice and eggsnExcellent quality professional nit comb included, if nit removal is desirednStarts working on contact and safe for children 6 months and oldernSafe, non-toxic formula and Spanish/English directionsnLicefreee Spray! Instant Head Lice Treatment starts killing lice on contact. The non-toxic spray application makes the one step solution fast, safe and easy to apply. Licefreee Spray! is a homeopathic formula that has been tested 100% effective in killing lice and their nits. Combing is not a required step for the treatment to be effective, but may be required by your school's no-nit policy. Licefreee Spray! includes a professional stainless steel comb if nit removal is desired. Licefreee! provides effective treatment and is completely non-toxic to humans, though its deadly to lice. Since its launch over 10 years ago, Licefreee! has become America's #1 non-toxic brand chosen for head lice treatment. Licefreee! Non-toxic Lice Killing Hair Gel uses naturally occurring ingredients to kill lice and their eggs. The formula is free of pyrethrum and permethrin and comes with a professional stainless steel comb for easy nit removal. Licefreee! Leaves no harmful pesticide residue on the hair or scalp and is safe for multiple applications. Available in a Single Dose 4oz Gel, Double Dose 8oz Gel, and a 6oz Spray! Each comb with a metal comb.