Vitamin C in Cosmetic Products – Does it work? episode 211
The Beauty Brains
MARCH 2, 2020
Ignoring that, is there a difference in the ascorbic acid these various brands us? Cosmetic grade and pharmaceutical grade. Question 2 – Katherine says – I listened to your most recent podcast and I was wondering what your opinion is of the effectiveness of these 2 Waterless Vitamin C products from The Ordinary.
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