By Alyssa Kolsky Hertzig

We're accustomed to fussing over our faces, trying to turn back the clock on sunspots and lines. But there's another age giveaway that could use more attention. "A woman in her 40s doesn't have the hair she had at 20 - it's not just her imagination," says British hair expert Philip Kingsley, author of The Hair Bible. As we age, our locks and scalp are affected by a trio of tribulations - namely dryness, dullness, and thinning. But our accumulating birthdays are not all to blame; dyeing, blow-drying, and styling all contribute to the damage. "Women need to think about their hair the same way they think about their skin," says Gretchen Monahan, a Boston hairstylist and style expert for the Rachael Ray Show. "We're used to moisturizing and protecting our faces, but we don't apply the same care basics to hair." So, while there may not be a time machine for your tresses, here's how a little extra TLC (plus the right products and styling tips) can make your mane look years younger.