The Best Serums Can Sort Out Any Skin Problem (No, Really)

We know serums have been around for a while now, but which ones are the best? Despite the mass interest, there’s still a hint of confusion, cynicism, uncertainty—all of the above, really—over whether it is absolutely necessary to add a serum into our regimens. “Everyone knows that a serum is a skin booster, but because it’s more expensive, they think it’s not necessary,” explains Howard Murad, MD, board-certified dermatologist and founder of Murad skincare. However, there’s more to serums than just giving the skin a quick pep talk. If you’re puzzled or just totally over the long-winded, science-packed explanations about why you need one, wonder no more.

Here are the essential things you need to know (without the bits you don’t).