Liberty Cups are made out of medial grade silicone and are reusable. They sit inside the vagina and collect menstrual blood rather than absorbing it. This means that cups are not linked to toxic shock syndrome like tampons are.
It produces minimal waste and is reusable for 10+ years. By contrast, on average a woman uses 11,000 tampons/pads in their lifetime.
You can also wear the Liberty Cup for up to 12 hours at a time.
Women lose 30-40ml (on average) of blood each period. Cups are able to hold more than 15 ml of fluid compared to one tampon which can hold around 5 ml of blood and a pad which can hold 5-10 ml maximum. That means less changes, less often. Buying a Liberty Cup is a one off cost which means you no longer have to spend each month as well so it's just a great idea all round!.