Ah, Benny's parents, thanks for coming.

Hiya.

So, Benny has really blossomed this term.

You're telling me, he outgrew his bike. We sold it, on eBay.

Oh, that's not quite what I meant.

It's free to sell on there.

Free to sell?

Easy too. Sold Benny's bike, your guitar, my jacket.

You sold my guitar?

Shall we talk about Benny?

When it's this easy to sell for free, you can't help but say when it's eBay.

Things people love. T's and Cs apply, exclusive vehicles.

Welcome to Science Talk, the weekly podcast of Scientific American, posted on May 11th, 2009.

I'm Steve Mursky.

This week we'll talk about the science of beauty, which in the case at hand is mostly the science of skin.

We'll talk with a couple of researchers from Proctor and Gamble who work on skin issues.

Plus, we'll test your knowledge about some recent science in the news.

Scientificamerican.com this week features an in-depth report on the science of beauty.

A group of Siams staffers recently met with Procter & Gamble scientists Greg Hillebrand and Jay Tysman,

who work with dermatologists on skin care products.

You know, we mostly talk to academic researchers on the podcast, so in addition to the

immediate subject of beauty, this is an opportunity to hear what life is like for the

...