While invisible makeup protectors, like primers and setting sprays, might seem to fit the bill of gimmicky extras we don't really need, some of them actually do work to keep our faces from melting off on those mornings when we're trapped in an overcrowded subway car with broken A/C. Even better news for us penny-pinching cynics, we can add the two extra layers of sweat defense for less than $10, total.
Whether you're looking for a mattifying priming glue, a lightweight barrier that wears like a sheer moisturizer, or a refresh spray that magically melts your makeup back to cute, you'll find a great, low-budge option, ahead.
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