Some non-insecticidal products are marketed for use together with an insecticidal product. Such an approach can be expensive with the purchase of at least two products. Clear® Lice Egg Remover is a gel that contains a number of enzymes, including oxidoreductase, transferase, lyase, hydrolase, isomerase, and ligase. It is to be used after treating with Clear® Lice Killing Shampoo, which contains pyrethrum extract. LiceGuard® shampoo contains sodium laureth sulfate and is to be used after treating with a pyrethrin or pyrethrum product or the electronic LiceGuard® Robi Comb®. RID® gel contains cabbage extract and pineapple extract for dissolving the "glue" that attaches nits to hair. It is to be used following RID® shampoo, which contains pyrethrum extract.