Hi, I'm Valerie, and you're listening to The Beauty Brains.

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 400. I'm your host, Valerie George, and with me today is Perry Romanovsky. Hi, Perry.

Hey, Valerie. Good to see you again. I can't believe we made it to 400. I know, 400 episodes. Well,

you and I are like 300. 235.

Yeah, yeah.

But I mean, still incredible the show has made it because without me, without you, we wouldn't

be here.

I know.

And the best episodes really were after episode 166.

Sorry, Randy.

Well, on today's show, it's going to be an amazing show.

We had lots of questions that we're going to cover, including how does different water affect the performance of hair products?

Do you really need to reapply sunscreen every two hours?

Can rinse-out conditioner and a deep conditioner or mask be used interchangeably?

Does the Avine makeup removing mycelor water really work? And finally,

our 20-free or 12-free nail polish is safer, but first, inane, chit-chat. Valerie, I'm back from my

big trip overseas. How was it? Oh, it was wonderful. I went to Italy and, first of all, I crushed it at my talk. That's good.

I only say that because at the end I got a good applause, but maybe that was because I juggled at the end.

It's possible. Not many people can juggle or juggle. Yeah, you don't usually expect to see that at the end of a scientific talk.

So I always like to end with something like that just to ensure that I do get a few cheers.

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