Acids, bases, and pH – oh my! What kind of things that might affect pH?

What do you want to know about ingredients and pH? Let’s get this conversation started!  If an ingredient is water soluble, it has the potential to alter the pH. Glycerin, propylene glycol, hydrosols, floral waters, distillates, preservatives, proteins, humectants – these are all found somewhere on the pH scale, and they can have an impact…