Niacinamide (vitamin B3) combined with zinc is used to improve skin barrier function, regulate sebum production, reduce inflammation, and help manage acne and hyperpigmentation. The pairing is common in formulations targeting oily, blemish-prone skin.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient stinging or tingling | Uncommon | Usually brief, especially at higher niacinamide concentrations or on sensitive skin |
| Redness or flushing | Uncommon | More associated with niacinamide; typically mild and self-limiting |
| Dryness or irritation | Uncommon | May occur with frequent use or in combination with other actives |
| Contact dermatitis or allergic reaction | Rare | True allergy is uncommon; patch testing advised for sensitive individuals |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.