I didn’t add any color to this loaf of soap, because I wanted to see what the fragrance oil might do to it. I thought it might darken some, but I wasn’t really expecting it to darken that much!
I cut the loaf into bars first, then a few days later, trimmed the edges of the bars. You can see how in just a few days it went from the beige on the inside to completely dark by the time I trimmed the corners.
Sometimes, no matter what you do, the fragrance oil will darken soap, despite having been colored. I’ve had that happen too. Once, I colored with black to try to combat that process, and it still turned brown!
Kind of amazing how fast, and strong, that process is!