Catherinuska
Oily/Sensitive
Both of these ingredients are not as potent as some other ingredients, so they are safe to use with a lot of ingredients AND they can be used together as wellโค๏ธ so no worries, unless you have extremely sensitive skin, you can use this combination in one routine.
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Alatinaandagolden
Oily/Resilient
combining vitamin c and Niacinamide is completely fine. that is a myth it has been debunked many and many times
Niacinamide is an ingredient can be combined with all other ingredients
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Picky16517
Dry/Resilient
I've seen mixed information about it - equally you can mix it, and you can't mix it. So I contacted the brand whose products I'm using and they said not to so I just went with that. So I do vitamin c in the morning and niacinamide at night.
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