This has to be answered somewhere here. But I cant really find the answer. what is the difference in end product regarding whether you do a/b or stb?
i know the stb is what most people do because it's less steps or whatever. does the a/b provide a stronger product? cleaner? whiter? or is is the same?
i know the stb is what most people do because it's less steps or whatever. does the a/b provide a stronger product? cleaner? whiter? or is is the same?
