In addition to helping makeup stick, they can prevent sun damage.
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“Setting sprays with an SPF label contain the same active ingredients as traditional sunscreens and theoretically should undergo the same testing to ensure that they give the protective factor contained on the label,” says Shilesh Iyer, MD, dermatologist with the New York Dermatology Group in New York City, adding that consumers should look for an SPF of 30 or higher. Sunscreens in setting sprays can be one of two types: chemical or physical. “Physical blockers act by providing a thin physical barrier that protects the skin against sunlight,” says Iyer. This type could last longer than a chemical spray (which works by absorbing UV radiation) or even a physical cream because the spray can be more effectively locked into place.