Mask Sealer and Mustache Wax
Moustache Wax is a great solution for those with extra facial hair that don't want to shave and don't want their mask to leak. Just liberally apply the food grade silicone to your whiskers, put your mask on, and go diving. Reapply when necessary! This is perfect for the person with a mustache. Just apply this to your mustache and the mask will seal better to prevent leaks.