Hi, I'm Perry, and you're listening to the Beauty Brains, a show where real cosmetic chemists answer your beauty product questions and give you an insiders look at the beauty product industry. This is episode 211 and I'm

your host Perry Romanowski. And today is just a beauty brain show as there's only one of us it's a solo show Valerie is a bit under the

weather since this is a solo show I'm going to mix it up a bit and I'm just going to focus

on one topic and answer a few questions that we got that's related to that.

These include, first, are there different grades of Vitamin C since the price is vary so much for the same thing.

Two, what is your opinion of the effectiveness of a waterless Vitamin C product?

And three, does Vitamin C really do anything for your skin? I also added an audio

question about whether open mouth jars are bad for active ingredients.

But before we get into that, let me apologize for not

posting a show last week. I just got back from a vacation in the Caribbean, the

lovely Turks and Kecos islands and I wasn't able to get a show recorded and put up in time.

But I will say that I'm proud that despite hours of sitting in the sun, I did not get any significant sunburn.

My strategy of using the SPF 50 and then covering most of my skin in a towel and staying in the

shade turned out to be pretty effective.

This did prompt me to ponder the notion of the SPF of fabrics though,

and that kind of took me down a bit of a rabbit hole on the subjects.

Perhaps we'll cover that in a future show.

There seems to be a lot of marketing hype with little supporting science on the subject.

And actually I posted on Instagram about it and someone even claimed that cotton t-shirts provided no UV protection.

Of course, if that were true, you know, I would never get that farmer's tan where my arms get really brown

and my torso stays pretty light.

So clearly, t-shirts do provide some UV protection.

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