COSRX The Niacinamide 15 Serum vs Skin1004 Madagascar Centella Ampoule
COSRX
The Niacinamide 15 Serum
~$18· 20ml
NiacinamideSodium PCA
Skin1004
Madagascar Centella Ampoule
~$24· 3.38 fl oz
Centella AsiaticaMadecassoside
Actives breakdown
| Active ingredient | COSRX | Skin1004 |
|---|---|---|
| Niacinamide | ✓ | — |
| Sodium PCA | ✓ | — |
| Centella Asiatica | — | ✓ |
| Madecassoside | — | ✓ |
Layering & Safety
Combined Verdict
Safe to layer
No layering conflicts flagged between these two. Patch-test new actives as usual.