During your cycle, you can just wash the menstrual cup with water and gentle unscented soap. However, when you are inserting it for the first time at the beginning of your next cycle, you must sterilize the cup. Folding 101 The real deal For a comfortable insertion, the cup needs to be folded in certain ways. Once you buy the cup, you don't have to think about it for the next 5 years. It's safe since you won't be throwing away pads or tampons every 5 days of the month. You can wear the cup during the day and even when you are sleeping. It is safe, leak-proof and extremely comfortable. Our manufacturing facility is germ free and sterilized. The cup is made of 100% Medical Grade Silicone, which means it's free of Latex, BPA and any harmful toxins. It has gone through extensive testing to make it safe. One cup lasts a minimum of 5 years! Days of spending money on period products are gone.