Most people think soap is soap, but there ARE differences. Have you ever noticed that some soaps are labeled "beauty bars" not "soap"? For simplicity I will call all bar soap, "soap".
There are some brands of soap that leave a residue MUCH worse than others. I love Zest specifically because it does not leave soap scum. In fact, I have washed my hair and body with it for years. (Every time I would tell someone this, they would be outraged, especially hair dressers.) I wouldn't think of using any other soap in my hair because of soap scum.
Years ago as a child whose job it was to scrub the tub and sinks, I noticed that there was less soap scum under the Zest holder on the bathtub wall. Hmmm. Then I finally figured out that other soaps left a residue on my fingernails, but Zest didn't. Sure, I could be more diligent and scrub it off, but why? I could use Zest and it not even show up to begin with. That's when I tried it on my hair. Now, I hate traveling and using the soaps (or shampoos) in hotel rooms. I always pack my Zest. I don't leave home without it. My hair even tangles less with Zest.
Then I married a chemist. It turns out that some soaps are soaps, and some are detergents. Go figure. I have a couple of those ionic air cleaners and they get dirty with some sort of black residue. Zest won't budge the black stuff, but soap will. Hubby tries to explain it, but I am not a chemist. All I know is Zest is the best. ... View related article.
