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 423.

I'm your host, Valerie George, and with me today is Perry Robinooski.

Hi, Perry.

Hello, Valerie.

Great to see you.

Great to see you, birthday boy.

On today's show, we're going to cover lots of questions, including, does NAD skincare

actually have real efficacy data? Do hair masks

give better results if they're left on longer? Does shampooing after depositing hair color

weaken or degraded and last but not least is glycerin drying skin at high altitudes? But first,

that inane chit-chat. Whoa, Valerie, didn't you just come back from

California or something? I did. I had a production in Los Angeles, two days offsite at a facility.

It was a project I completed a while ago, but they cashed in their chips, as I like to say and

said, guess what? You are coming now and we're going

to scale up. And that's what I did. Oh, that's fun. Yeah. I guess that's a job that a lot of people

don't know that the cosmetic formulator will do. You know, you make the formulas in a lab at

small levels, maybe, I don't know, what's the most two kilograms?

It's the mat mooks you're going to make of something.

3.5 is kind of my max reliable quantity, less for hair color.

Right.

...