I made my black seed soap yesterday. It turned out wonderful. Tallow, peanut, castor and pko. 1/2 oz black seed oil and the contents of 3 black seed capsules. My eyes were reopened to using full water. I had planned to hp, but when the batter was so smooth, creamy and slow to trace, I dumped all the ingrediants in, 2 oz of frag and did a blue swirl.
I added a wee bit of geranium and french vanilla. In the finished soap you can still pick up a slight peppery scent of the black seed. The tallow turned a beautiful white and hopefully the fench vanila fo won't discolor.