Has anyone used black oxide for making a thin black line?
I made a batch and wanted a darker thin line between my two layers. I had been using vanilla specks as it didn't affect the colour but it wasn't dark enough for what I wanted. I tried the black oxide in a shake jar with nylon on the top but now I think i may end up with black suds has anyone tried this or can recommend something different to use? Maybe charcoal but I am scared that when I cut the log that the colour will run through the soap..