Important Question: When Will Unopened Beauty Products Expire?

"Powder formulations do not contain water or oil (both of which can shorten lifespan), so they can typically last up to two years if they remain unopened. That said, if you open the product and notice it has crumbled or the shade has darkened, you should toss it! If outdated, they can create irritation on the skin, especially if you suffer from sensitive skin issues or rosacea." — Dr. John Diaz