Hi Crafters, Its been awhile for me. Just started research and work on dry oil perfume using Cyclomethicone and FCO. Still dinking around with the ratios not sure if I want to do a 90% cyclo 10% FCO or 70-30? Still working out the kinks. Trail trail trail Question, does this type of perfume require some sort of preservative? If so, are you willing to throw out some preservative ratios for these early work ideas? TIA. and its great to be back!!