The OrganiCup Menstrual Cup ($20) is AllergyCertified, which means it has been reviewed by a toxicologist to ensure its free of known allergens. Available in three different sizes (mini, small, and large), these cups are made of medical-grade silicone, are free of colour additives, and hold the equivalent of about three tampons. While the ridged stem is meant to make the cup easier to remove, some reviewers noted having to trim it for more comfort, though others were not bothered with its design.