Pyrethrin-piperonyl butoxide is available in a 0.33% shampoo or shampoo and conditioner marketed as R&C Shampoo and Conditioner and Pronto Shampoo.

Pyrethrin is derived from the Chrysanthemum flower. Piperonyl butoxide acts synergistically to increase the effectiveness of the pyrethrin.


  1. Apply the product on dry hair.
  2. Leave on the hair for 10 minutes.
  3. Shampoo the hair. The product is then washed off.
  4. Repeat treatment after 7-10 days.


Although there are no restrictions in terms of use in pregnant and nursing mothers it is advisable to consult your doctor before using in this situation as well as in children under 2 years. Avoid if allergic to Chrysanthemums.

More information about how permethrin and pyrethrin-piperonyl butoxide work.