Get Hollywood Hair:
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How to Get Rihanna's Signature Red
1. Lighten first: Primary tones look muddy unless you start with a pale base. Dab your hairline with petroleum jelly and use rubber gloves to prevent staining. Follow dye instructions for processing, but remove color after an hour to prevent damage. A semi-permanent formula like Manic Panic Semi-permanent Hair Color Cream ($10 each; rickysnyc.com) works best.
2. Detox with a rich conditioner, preferably one packed with protein like Motions Deep Penetrating Treatment ($5; drugstore.com).