Frequently Asked Questions

RID® Lice Products FAQs and Information

  • Why is it important to use RID® Lice Killing Shampoo on DRY hair?

    Wetting the hair can dilute the treatment. It is critical that you are careful about reading directions before using the product. If you do apply RID® Lice Killing Shampoo on Wet hair, rinse the Shampoo from the hair. Continue with the combing procedure in Step 2. Apply another treatment on DRY hair 24 hours later. This will be the Day One application. Re-apply treatment 7 to 10 days later to kill any newly hatched lice. Continue with the combing procedure after each application to remove dead lice, eggs, and nits.

  • In what sizes is RID® sold?

    RID® Lice Treatment Complete Kit contains:
 4 FL OZ (118 mL) Shampoo
 2 FL OZ (59 ml) Lice & Egg Comb-Out Spray
 3 OZ (85.1 g) Home Lice, Bedbug & Dust Mite Spray 
Patented RID® Lice Comb All sizes of the Shampoo and the Complete Kit contain step-by-step illustrated instructions.

    RID® Lice Elimination Essentials Kit contains:
 4 FL OZ (118 mL) Shampoo
 2 FL OZ (59 ml) Lice & Egg Comb-Out Spray
 Patented RID® Lice Comb

    RID® Lice Killing Shampoo is available in:
 2 FL OZ (59 mL), 
4 FL OZ (118 mL)
, 8 FL OZ (236 mL)

    RID® Home Lice, Bed Bug & Dust Mite Spray is available in:
 5 OZ (141.8 g)

  • Should I ventilate the room when using RID® Home Lice, Bedbug &
 Dust Mite Spray?

    Yes. Do not allow adults, children, or pets to enter until vapors, mists and aerosols have dispersed, and the treated area has been thoroughly ventilated. See RID® Home Lice, Bedbug &
 Dust Mite Spray Product details.

  • When will I be lice-free?

    When all directions have been followed for the 3-step lice elimination process, you should be free of lice after the day of your final application. To ensure that you are lice-free, it is critical that all steps be followed according to package directions. The full treatment requires 7 to 10 days.

  • Why are there two sprays included in the RID Lice Treatment Complete Kit?

    The kit contains two sprays:

    1. Lice & Egg Comb-Out Spray: to be used on the head to aid in detangling hair to make lice and egg comb-out easier. It can be applied as often as desired during the comb-out process. Click here for detailed instructions on how to remove lice and eggs.

    2. Home Lice, Bedbug & Dust Mite Spray: to be used to kill lice and eggs on mattresses, furniture, car interiors and other non-washable items. This product is not for use on humans and should NOT be used on the head.

  • Is RID Lice & Egg Comb-Out Spray sold separately if I need more?

    No, Lice & Egg Comb-Out Spray is not currently sold separately. If you need more, you may use a conditioner as an alternative combing aid.

  • How often should I treat to kill lice with RID®?

    Successful treatment requires using RID® Lice Killing Shampoo on Day One and then 7 to 10 days later. You should not complete the second shampooing sooner than day 7. However, it is important to check the hair continually and remove any nits or eggs that may have been missed in the initial combing process.
    If you have recently completed the RID® 3-step process and have lice again, please consult a doctor or pharmacist before using RID® again.

  • When will RID® begin to work?

    Most lice will die within, or shortly after, the ten-minute dosing. Lice are very sensitive to light and will move quickly when alive. If you observe lice crawling after treatment, they are probably affected and will die shortly. You should just comb them out of the hair.

  • Can RID® products be used on pets?

    No. Although RID® helps ensure complete lice elimination when used properly, it is designed for use in humans and is not approved for use on pets or any other animals. If you think your pet may have lice, be sure to contact your vet immediately.

  • Can I use my own shampoo/conditioner after lice treatment?

    While it is not necessary to use your own shampoo or conditioner after treatment, doing so will not interfere with RID®'s efficacy.

  • Can I use RID® on my infant?

    No. RID® should not be used on an infant (under 2 years of age) without consulting a doctor.