Hair's the Scoop

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From smart suds to faux fringe, these anti-aging innovations can help stop the clock:

Dove Pro-Age Thick & Full Therapy Shampoo
This volumizing cleanser removes build-up, smooths and strengthens, and improves manageability. $3.74, Walgreens.com.

L’Oréal Professionnel Série Expert Age Densiforce Masque
A rich, fast-action conditioning treatment that helps to fortify, nourish and protect mature hair, without weighing it down. $30, LorealProfessionnel.com.

Phyto Phytocyane Revitalizing Serum
An all-natural serum that addresses the oh-so-fun issue of hair loss/thinning, and also delays the onset of grays. $50, Sephora.com.

Avon Advance Techniques Grey Root Touch-Up
Formulated with creatine to strengthen and repair hair, this gentle, peroxide-free color instantly blends away roots until your next shampoo. $5.99, Avon.com.

HairDo Fringe Clip-In Bangs
An easy-to-use, pain-free alternative to dermatological fillers. Use them to hide forehead "flaws," or to add a youthful edge to any look. $190.95, HairUWear.com.

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Kristen Stewart channels Joan Jett for her upcoming film, "The Runaways."

The Times Online explores the psychology of the hair salon.

Gray hair guards against cancer? Bloomberg.com explains.

Total Beauty reveals their readers' least favorite hair-removal products.

Cosmopolitan Magazine needs your hair color help.

Crazy or Crafty? X17 questions Melanie Griffith's new look.

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With stars like Madonna proving that a person's choice in fitness, fashion and lifestyle (cough, plastic surgeon) can take decades off their appearance, should certain hairstyles still be considered inappropriate after a certain age?

Take Demi Moore, for example. Her (beautifully) long locks go against the notion that such looks are only fit for those under 40. And then there's Claudia Schiffer, who has been spotted recently sporting the sort of edgy, rock 'n roll-inspired 'do once reserved for rebellious 20-somethings. And who can forget Gwen Stefani's "Today Show" appearance? That updo sparked a surprising debate about whether such styles are avant-garde or childish.

What do you think? Is it time to update (or bin!) our "rules of hair"?

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Filming or faux pas? Diane Keaton looks hilarious in hot rollers as she strolls the streets of NYC.

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Seen here with FEED co-Founder Lauren Bush, Christie Brinkley's luminous locks are ageless.

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Pictured here at a recent press event for "33 Variations," Jane Fonda's luminous, healthy-looking locks are ageless.

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Carol Burnett stepped out in her signature, strawberry-blonde locks to celebrate the acting career of friend Tim Conway.

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Seen here taking a quick break from her "Sticky & Sweet" tour, Madonna (looking perfectly tousled) walked the red carpet in support of her husband's new film, "RocknRolla."

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Pictured here at the 24th Annual Infinity Awards, Diane Keaton shows that going gray can be quite flattering with the right highlights and lowlights.