It depends on whether or not you have elastic nipples! Do your nipples tend to stretch to the end of the tunnel in standard flanges? If not, feel free to use lubricating oil to prevent friction.
If your nipples are elastic, our silicone flanges have a special feature that holds the nipple tissue in place to keep them from stretching, which also holds the milk ducts open so the milk drains more easily and quickly with total comfort. Only the very tip of the nipple should move in the flange. They can only do this without any lubrication, though, so it's important to remove it from every source.
See Lubrication in our Silicone Flanges for a full list of sneaky lubrication sources.
Reviewed by Diana West, IBCLC
June 10, 2021