The Ordinary Niacinamide 10% + Zinc 1% vs TIRTIR Pure Vitamin C 24% Face Serum
The Ordinary
Niacinamide 10% + Zinc 1%
~$6· 30 ml
Niacinamide
TIRTIR
Pure Vitamin C 24% Face Serum
~$34· 30ml / 1.01 fl oz
Vitamin CCentella AsiaticaHydrolyzed Collagen+2 more
Actives breakdown
| Active ingredient | The Ordinary | TIRTIR |
|---|---|---|
| Niacinamide | ✓ | — |
| Vitamin C | — | ✓ |
| Centella Asiatica | — | ✓ |
| Hydrolyzed Collagen | — | ✓ |
| Matrixyl Peptides | — | ✓ |
| Glycerin | — | ✓ |
Layering & Safety
Combined Verdict
Use with caution
Niacinamide and Vitamin C can clash: Sensitive skin may flush.