Earlene, Yes, you are correct that adjustments need to be made to a formula when you add an acid that will affect the base used in the product, but you said very little about how you made the calculations to correct the addition of an acid to the base included in your formula. In the 2nd. portion of my response, I was responding to the scent aspect mentioned below by the original poster, Jerry who created this thread to find out the information about using lemon in his soapmaking process. My reply, as others who have replied to this thread, is to everyone who has posted or who is reading this thread. Sorry I didn't delete the second section of your post. You are entitled to express your opinion about the pH of soap as you did in the 3rd. section. I don't happen to feel the same way about this issue. I am very careful in determining pH in soap, shaving soap, shaving cream or any other types of products I formulate and manufacture. I have been taught by several friends of mine who are cosmetic chemists how important it is to test the pH of a product if there is any concern about it having a higher pH than is appropriate for that product. I was instructed that I should use a pH meter (and I do feel much more comfortable using my pH meter!) to do the appropriate testing as it is the only proper way to perform this task! I am saying this to all those out there who may read it as I think it is important and correct information for them to have so that they can do the right thing when they are creating their products! This goes for amateurs and professionals alike!