niacinamide

  • can you use vitamin c and niacinamide together
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    Can You Use Vitamin C And Niacinamide Together?

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    Can you use Vitamin C and Niacinamide together? Vitamin C and Niacinamide are the Britney and Xtina of the skincare world. Rumour has it, these two skincare superstars hate each other’s guts and can’t stand working together. They deactivate each other, make the other product useless and just don’t layer well together. Or so they […]