6 Shiny-Hair Saboteurs

Photo by: David Cook

The saboteur: Sun exposure.
 There's nothing like sun to leave your hair sad, drab, and brassy," says White. In fact, 100 hours of direct sunlight inflicts the same amount of damage as keeping bleach on your hair for 30 minutes, says Lewellyn.

The savior: SPF.
 Wear a hat or spritz on a UV filter before heading outdoors. "Leave-in products that contain benzophenone-3 or -4, butyl methoxydibenzoylmethane, polyquaternium-59, or... more 

Photo by: David Cook

The saboteur: Sun exposure.
 There's nothing like sun to leave your hair sad, drab, and brassy," says White. In fact, 100 hours of direct sunlight inflicts the same amount of damage as keeping bleach on your hair for 30 minutes, says Lewellyn.

The savior: SPF.
 Wear a hat or spritz on a UV filter before heading outdoors. "Leave-in products that contain benzophenone-3 or -4, butyl methoxydibenzoylmethane, polyquaternium-59, or cinnamidopropyltrimonium chloride are effective in protecting hair," says cosmetic chemist Ni'Kita Wilson. We like Kérastase Soleil Huile Céleste.

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