Question
Looking for answer that is scientific in nature and not just an opinion.
When using dial (on my cat) it helps kill the fleas, sometimes better than even cheap flea-shampoos do. But like those cheap shampoos, does it or does it not kill all 4 stages in a flea's life cycle (ex. some shampoos don't kill eggs)??
Question 2 is using dial first before a store-bought, flea-shampoos does it cover say the eggs with a layer that the flea-shampoo doesn't penetrate to kill the egg??
Answer
Dish soap, bar soap, liquid soap, shampoo (for humans) is a no-no for cat's (or dogs). Cats skin is a significantly different Ph than human skin and using these products can cause irritation, itching, allergies, etc. Additionally, when they groom themselves, they can ingest chemical traces that may cause other issues in the future.
For good flea control, there are many, many methods and products. Do a search here on the site and you will find many answers for flea control.
I use Comfortis on my cat and dog and have been extremely pleased. They both have no reaction to the treatment.
Answered By - M.Mat