What I have noticed with rock hard bath bombs is that all have the same concept for ingredients.... oil or butter that solidifies when it is at room temp.(i.e. coconut oil, cocoa butter, shea butter, etc.) I have spent many, many hours researching after hundreds of attempts at batches that were okay but nothing like what they sell at the stores. With that being said I have embraced the fact that I have CP down and that is the majority of my business. I do not have any desire to spend more time at this point mastering bath bombs. I order mine wholesale from Jenny and they are wonderful! You can drop one of those babies and it is like a golf ball. They sell very well and it is one less thing that I need to worry about. Good luck to all of you that continue..... Jennifer