Doris Ann
Member
I know I’m late to answering this question, but I wanted to add my opinion. I really found Jan Berry’s book, Simple & Natural Soapmaking, to be the most helpful. I just loved it and bought my own copy after using the library’s copy. If you are interested in natural cola rants, she has a great section showing how various natural colorants look in soap when added to the oils or added to the lye solution. It also shows differences in color when using various amounts and differences in color over time. The pictures in the book were very helpful regarding how to make the soap and how to achieve various color effects in the soap, such as “tiger stripe,” “pencil lines,” and “in-the-pot swirls.”