805 Views
normanrockwell
Oily/Sensitive
this concern stems from the idea of niacinamide hydrolyzing to niacin, which can be problematic when mixed with vitamin c. however, studies show that niacinamide only converts to niacin under extreme temperatures over extended periods of time. obviously, you will not be exposed to extreme temperatures in ur everyday life, so there’s nothing to worry about. it is more than SAFE to layer vitamin c with niacinamide.
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mmskin
Dry/Sensitive
you absolutely can layer niacinamide with vit c. those are outdated studies. As long as your skin reacts well to it, make sure to apply the vit c first.
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mk1103
Oily/Sensitive
I don't have it but need to buy for autumn and winter for testing 🥰
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Duxee
Oily/Resilient
I’m interested Cosrx toner, every day I used almost serum and lotion included niacinamide. that why I’m still worry about my skin will break out after I mixed it
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chlil2002
Oily/Sensitive
it's an outdated study dating back to 1960s, don't worry, just layer them if your skin doesn't feel irritated by both combo.
the only worry i feel is that niacinamide at 10% has a tendency to irritate skin, but of course not everyone's skin is sensitive, so if you've never had problems before, then continue on
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Skinozi
Oily/Resilient
from what I know vitamin c and niacinamide work well together but it purely depends how your skin takes it or how it’s formulated
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