The Ordinary Niacinamide 10% + Zinc 1% vs TIRTIR SOS Serum
The Ordinary
Niacinamide 10% + Zinc 1%
~$6· 30 ml
Niacinamide
TIRTIR
SOS Serum
~$38· 50ml / 1.69 fl oz
Hyaluronic AcidMatrixyl PeptidesCentella Asiatica+4 more
Actives breakdown
| Active ingredient | The Ordinary | TIRTIR |
|---|---|---|
| Niacinamide | ✓ | — |
| Hyaluronic Acid | — | ✓ |
| Matrixyl Peptides | — | ✓ |
| Centella Asiatica | — | ✓ |
| Panthenol | — | ✓ |
| Allantoin | — | ✓ |
| Adenosine | — | ✓ |
| Glycerin | — | ✓ |
Layering & Safety
Combined Verdict
Safe to layer
No layering conflicts flagged between these two. Patch-test new actives as usual.