Has anyone tried the Ion pre and after-color treatments from Sally's? Do they make color last longer?

Pre-treatment to "even porosity": Ion - Ion Color Brilliance Pre-Color Treatment Would this benefit all types of porosity?
After-color treatment to help "seal the cuticle": Ion - Color Brilliance - Ion Color Brilliance After Color Treatment

I wonder which ingredients in the post treatment help "close the cuticle"? Wouldn't ordinary conditioner accomplish the same thing?