Can you use Niacinamide with Sunscreen (SPF)?
CompatibleEvidence · Established
No conflict: niacinamide goes underneath, sunscreen last. The claim that niacinamide deactivates sunscreen is a myth; there is no mechanism by which it disables UV filters, and it is one of the better-tolerated ingredients to wear beneath one. Apply niacinamide as part of a morning routine, let it absorb, then sunscreen as the final skincare layer.
Established: Well-supported, widely-accepted cosmetic guidance.
Niacinamide
INCI · Niacinamide
A vitamin-B3 active used for the look of even tone and a comfortable feel.
All pairings →Sunscreen (SPF)
INCI · Various UV filters
Broad-spectrum sun protection — always the final morning step.
All pairings →Cosmetic layering guidance for the look and feel of your routine — not medical advice. Patch-test new combinations.