What: Robin uses Repelle Skin Shield Wand, $4.99, to keep her hair color on her roots and nowhere else.

The Lowdown: Considering most people who attempt at-home hair coloring stain their hairline (and yes, I’m one of them), I was happy to find Repelle. It’s a cute little lip balm-like stick that you rub around your hairline, ears and neck before applying your hair color. Aside from containing petroleum (which is what many hair dressers use before dying hair in a salon), Repelle also contains Pretectin-22, which ionically-repels hair chemicals. As a result, I didn’t have to spend time scrubbing my scalp raw after the dye job. Repelle to the rescue.

Yea or Nay: Yea. You can even use it as a manicure helper. If you line your nails with Repelle it will prevent nail polish from sticking to your skin.

Buy It: Walgreens, Rite Aid.