Rid Step 1 Lice Killing Shampoo. Easy to follow instructions. America's #1 lice killing brand. Lice treatment. Nothing proven more effective. Leaves no chemical residue behind. Easy to use shampoo & conditioner in one. Need help Call Rid. See inside for 24/7 expert hotline. Includes one patented comb. Bayer. Uses: treats head, pubic (crab), and body lice. Questions or comments 1-800-RID-LICE (1-800-743-5423) or www.ridlice.com. Rid lice killing shampoo will kill lice completely without leaving a chemical residue. Amount of shampoo needed will vary by hair length. See below for guidelines: Hair length - Approximate amount for 1 adult/child: Short (ear length or shorter): First application: 1 oz - 2 oz, second application: 1 oz - 2 oz, Total: 2 oz - 4 oz. Medium (shoulder length): First application: 2 oz - 3 oz, second application: 2 oz - 3 oz, total: 4 oz - 6 oz. Long (past shoulder length): first application: 3 oz - 4 oz, second application: 3 oz - 4 oz, total: 6 oz - 8 oz. The patented Rid comb is proven 100% effective as demonstrated in laboratory studies performed by trained testers. Individual results may vary. Rid 1-2-3 lice elimination system. Rid Step 1 lice killing shampoo lice treatment Rid Step 2 lice & egg comb-out kit. Rid Step 3 home lice control spray. See reverse panel for details. Step 1 lice killing shampoo lice treatment: Nothing proven more effective. Leaves no chemical residue behind. Easy to use shampoo & conditioner in one. Bayer, the Bayer Cross, Rid and Rid logo are registered trademarks of Bayer.