you defo need to stock up on these. use twice a week to help with blackheads..
i try to warm it up in hot water, so as to save on the amount needed to apply.
when the material is cold, there is not much 'elasticity' and its hard to apply without using way too much of it.
i say buy one to try it out, but keep in mind these last about 2-3 months if used twice a week.