Spotted your dream beauty product secondhand? Before you hit "buy," make sure you know the return policy. Here's what you need to ask to avoid a beauty bust.

Secondhand beauty can feel like finding a hidden gem—but not every listing is a winner. Learn the 5 red flags every beauty lover needs to know before you buy.

Found your perfect product from beauty resale? Before you use it, check the batch code and expiration date. Here's a quick guide to understanding those little labels and keeping your skin safe.

Thinking about buying opened or swatched beauty products? Get the full scoop on what's safe to buy secondhand and what you should always leave behind.