7. Products.
How often: Every two weeks is best, but every month is acceptable if you’re the only one using your makeup. If you’ve shared products or are sick, clean them after each use. Take no chances here.
Method: You can buy special makeup cleaners, but it’s not really necessary. Instead, pour rubbing alcohol into a small spray bottle, then spray the surface of each product. Rubbing alcohol evaporates immediately, so this won’t damage or change the consistency of your products at all.
Extra credit: Clean the containers, too. Soak a cotton ball in rubbing alcohol and rub down the plastic or cardboard housing of each product. Use a new cotton ball for each item so that you don’t accidentally cross-contaminate.