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Color Wow Dream Coat Supernatural Spray ($20, originally $30)

This anti-humidity hair treatment is a must have for the summer. It has heat-activated polymers that help to "waterproof" your hair, so you can brave everything from rain to humidity while keeping your blowout intact. Plus, it can tame frizz while adding shine. For more details and before and after photos, read our former editor's Color Wow Dream Coat Supernatural Spray review.

Editor Quote: "I initially tried the Color Wow Dream Coat Supernatural Spray while getting ready for an outdoor graduation party, and it had just rained. Usually, my hair would turn into a giant, frizzy poof, but now, it just became slightly wavier with no frizz whatsoever." — Anvita Reddy, former assistant shopping editor