I should have figured it out sooner.
 
It's the shampoo I use in the shower.
When I wash my hair, the shampoo runs down my whole body.
Printed very clearly on the shampoo label it reads, "FOR EXTRA VOLUME AND BODY."
 
I have gotten rid of the shampoo and I am going to start using Dawn
dish detergent.
Its label reads, " DISSOLVES FAT THAT IS OTHERWISE DIFFICULT TO REMOVE."
Problem solved!

Wow! It sure pays to read the label!