Okay, so it's not <em>really</em> caviar in this new treatment from <a href="http://www.kerastase-usa.com/_en/_us/conso/home/home.aspx" target="_blank">Kérastase</a>, called <a href="http://www.kerastase-usa.com/_en/_us/conso/products/chronologiste/waitlist.aspx" target="_blank">Chronologiste</a>. It's something called "mimetic caviar," which I understand is a lab-derived equivalent. (Because really—who wants their hair to smell like fish eggs?)

Anyway, listen up, because this is probably the most decadent hair treatment I've ever come across.

The claim is that Kérastase has taken ALL the benefits of ALL their products, and combined them into one "super-treatment," which is available in both in-salon and at-home versions and is suitable for all hair types.

This puppy does it all: it volumizes, hydrates, strengthens, repairs, smooths, adds shine and offers UV protection. Amazing right?

Here's how it works. Each Chronologiste kit comes with two ingredients: the caviar pearls and a mask containing hydrating ceramides and vitamin E. They're designed to be mixed together at the last minute, just before application. You then work the concoction through wet, just-shampooed hair from roots to tips and massage it into your scalp. After leaving it in for 10 minutes or so, you just rinse out and style as normal.

I got to try out the 30-minute in-salon treatment (which includes a  shampoo, scalp massage and style) a few weeks back at Toronto's <a href="http://www.hairontheavenue.ca/" target="_blank">Hair on the Avenue</a>, and WOW—my ends felt incredibly silky and strong. It totally deep-sixed the flat-iron-induced damage I had along the lower third of my ends—something no masque or conditioner has ever managed to do before.

Yes, it's pricey—$75 for the in-salon treatment or $150 for 10 applications at home. But I'm thinking that if this replaced the need for a whole bunch of masques, conditioners and serums, it could actually save you money in the long run.

Right? Or am I just an enabler when it comes to big-ticket beauty items?

What do you think—are you intrigued by an all-in-one hair treatment or do you think $150 is too pricey, no matter what it promises to do?