KeraCare product line changed the formula of some of its shampoos a few years ago to make them sulfate-free. Many of the hairstylists began complaining about the new formula, so KeraCare re-entered the old formula back onto the market as the "classic" formula. Now, I realized that the original "sulfate-free" 1st Lather shampoo has changed ingredients since it was first introduced into the market. The pH is also different. Some bottles of the sulfate-free First Lather shampoos have a "6.5" pH and some bottles have a "4.5" pH.
I wonder what are the rules of changing the ingredients of products, but they still market the products as the same product?
For instance, I did an article on how Nexxus Humectress changed their ingredients over the years. Recently, I also noticed that Paul Mitchell Sculpting Foam eliminated an ingredient Lawsonia Inermis(Henna) Extract as well as changed their dispenser top for this foam.
I suppose the manufacturers do not want to pay extra money to re-package or to bring alert to minor ingredient changes, but major ingredient changes should be marked on the packaging as a courtesy to the hairstylists in case the ingredient change affect the results in their client's hair. At least, they will not have to be surprised.
Physicians don't expect their prescription drugs to change in midstream. Why should cosmetologists have the "switch-a-roo" done to them?
