I love Millcreek, but as someone mentioned earlier, it is more geared toward candles than soapmaking. I make soy candles, and some of my favorite hot/cold scent throwers have been from Millcreek...that being said, I wouldn't guarantee that their oils will all work well in soap. As we all know, soap is a finicky beast, with A LOT of variables, and FO's can cause some funky things to happen.