For those who want the nourishing effects of butters and oils without the fizz of a bath bomb, bath melts or solid bath oils are perfect.  They’re easier to make, too, because they aren’t as finicky as bath bombs.  These bath melts are made with geranium essential oil.  You can substitute an essential oil of your choice.   If you choose to use fragrance oil (FO) instead, be sure to check the recommended usage amount because it will be different.