Hi, I'm Perry and you're listening to The Beauty Brain.

Hello and welcome to the Beauty Brains, a show where real cosmetic chemists answer your beauty product questions and give you an insider's look at

the cosmetic industry. This is episode 4001. I'm your host Perry Romanoowski and with me today is

Valerie George. Hello Valerie. Hi Perry. Valerie's a little warm out here today isn't it? Well I think

whether you're in Chicago or Dallas, it is blazing.

Speaking of blazing, that's what we have on our show, blazing questions.

And we're going to cover a lot, including,

how do you know if a product is providing heat protection?

What kind of damage can high force air do to wet hair?

What makes a facial mask work amazingly? What is really important

when using a sunscreen? And do those red light masks really spur collagen growth? But first,

some chit-chat. Valerie, I was just talking about the heat here, right? And I just, before the podcast,

I went for a run.

I thought you just freshly showered because your hair looks kind of wet.

No, I am drenched. And I was like, Perry's so ready this morning. I can't believe he's already

run. He's showered. And no, he's just a sweaty mess.

No, yeah. It's a, but, you know, I get this way in the winter, too, but in the summer it's doubly.

But this is what happened.

I get done with my run, and little dreamsicle sees me.

He was on someone else's porch, and he sees me.

And he comes prancing up, and he walks alongside me to my house, meowing and rubbing on my legs.

And then I walk onto my porch and I sit down to drip dry because I didn't want to get all

...