paraben

I am just curious how many people that make lotions actually send out for challenge testing? I am curious because, since I am at the parents, I have been looking at sellers websites to see how their lotions are made. I have found many using proteins, aloe, oatmeal, starches, etc using Optiphen...

Hello Dear Friends I newbie in soap making and i want to produce cp soaps. I need to use a synthetic preservative in my product ( NOT NATURAL ) and read than "paraben" family is good and have low cost . what is your suggestion ??? Thank you