Hi, I'm Perry, and you're listening to the Beauty Brains.

Hello and welcome to the beauty brains a show where real cosmetic chemists

to answer your beauty product questions and give you an insider's look at

the cosmetic industry. This is episode 298. I'm your host Perry Romanowski

and today is a solo show. Valerie is off in Paris at the annual in

Cosmetics show so we weren't able to connect for recording, but she'll be back next week.

Anyway, on today's show, I'm just going to answer a couple of questions that were of interest to me. It'll probably be a little

shorter than usual, but you know, I'll go a little deeper dive than usual and maybe I'll

rant about something. I don't know. So I'm going to answer questions about why brands might change a formula, whether professional skincare is better than the stuff

that you can buy in stores, and if expensive products don't work better, why are they so as popular?

Now normally there'd be a little, uh, I don't know, chit chat or whatever.

Let's just get to the question.

All right, I'm going to the question. All right, our first question comes to us from Sarah.

She says, Sarah says, do brands change formulas over time. I guess it's referring to whether an old product is the same

as something you use now. Well you you know, it seems a common belief with some people that

beauty brands change their formulas every so often. And in truth, brands, they don't really want to change their formulas that much.

And actually, they only do it when they have to. This is especially true for a product

that is selling well.

So the idea is that something is selling.

Well, you don't want to change anything.

Each change that you do creates the potential

that it's going to disrupt or disturb a current customer and you know you might turn off

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