The good news? The end of cold weather is approaching. The bad news? Perhaps your hair has taken a beating. Recently reader DCStar tried out Kérastase Resistance Substance Constructive Leave-In Conditioner ($28), a treatment that helps improve damaged hair. Here's what she thought:

Kérastase never disappoints, in my opinion, and this product fits right in with my high expectations. After washing, I took a nickel-sized amount in my palms and rubbed it through the ends of my hair, working back towards the roots (but not above ear-level), and then used a blow-dryer as usual. My hair looked model perfect, straight, and with fewer flyaways than usual. The smell is an added treat all day long — every time you toss your gorgeous hair. I definitely recommend it.

I'm a fan, too — it does smell amazing. Do you love reviewing products? Well, then it's time to head over to our Product Reviews website. To sweeten the pot, we're having an amazing contest right now. For every three quality reviews you submit, you're entered for a chance to win a $500 gift certificate from Benefit Cosmetics. Woo hoo!