What's the Big Deal with Menthol Crystals? 20th Dec 2017 Christina If you’ve never heard of menthol crystals, here is a quick guide that explains what they are and how you can use them! WHAT ARE MENTHOL CRYSTALS? Basically, menthol crystals are peppermint essential oil in solid form, and they actually Tags: #menthol crystals #menthol #crystals #uses #benefits #recipes #headaches #cramps #nausea #fever #cough #cold #flu #shampoo #lip balm #muscles #burns #itch #numb #natural #remedy #decongestant #respitory #wfmed #greenhealth #immunity