It will be a water/oil emulsion but won't be just the butter in the oil portion. I'll likely use around 25% butter (% of the oil portion, not counting the water here). I have a jar of cream I made with 50% coco butter and I really like it but its a tad bit too thick for what I'm wanting this time around. I'll try to find some RBO to add, does it keep decently well in lotions? I do use a preservative.