Serious Question: Does Setting Spray Really, Truly Work?

There are a few questions that always seem to warrant the same answers, no matter who is asking them. We consider them to be (almost) universal truths. Here are just a couple of examples: What should I do to prevent premature signs of aging? Wear sunscreen every day. What should I make for lunch? Something involving avocado because it's delicious. What should I use to ensure my makeup lasts all day long? Setting spray.

As for the latter, we've been told time and again that setting spray is the key to achieving truly long-wearing makeup. If we don't want smudging, budging, or flaking, we should spritz our faces before we head out the door. But we have to wonder, do setting sprays really work, or are they the product of misconceptions and good marketing? We felt unequipped to answer this on our own, so we reached out the experts—namely two professional celebrity makeup artists. Keep scrolling to see what they had to say.