I kept using the puff along with the cushion until I finished using it all.
However, I heard that it is difficult to maintain hygiene if foundation remains on the puff for a long time.
They say you need to be especially careful if you handle it frequently or store it in a humid place.
They say it is best to wash used puffs periodically and dry them completely before using them again.
If it still smells or the surface has changed significantly even after washing, it is better to replace it.
I also put it off because it was a hassle, but I realized that since it is a tool that touches the skin directly, it requires maintenance more than I thought.
How often do you all wash your cushion puffs?