These pure Menthol Crystals are amazing at giving your shower fizzies that extra kick that everyone loves and is also used for making scrubs, soaks, salves, balms, creams or even toothpaste. They can be dissolved in rubbing alcohol, heat, or oil. The melt point for these is around 106 degrees. If these melt in the summer (sometimes happens during shipping), let them harden back up and then they will be ready to crush.