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Can you combine VitaminC and Niacinamide? If you’re going outside, wear sunscreen. -they don’t like how it feels -they think it causes acne -they don’t like the white cast it leaves on the skin -they don’t want to mess up their makeup and -they don’t think they need it because they aren’t going to be in the sun too long.
According to the video on their website: “Tomatoes are rich in vitaminC and acids, both of which are effective at reducing the appearance of pore size.” You can do the same kind of calculation for vitaminC. We know from previous research that the most effective level of vitaminC is somewhere between 15% and 20%.
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