Neutrogena Collagen Bank 15% Vitamin C Serum vs Skin1004 Madagascar Centella Ampoule
Neutrogena
Collagen Bank 15% Vitamin C Serum
~$15· 0.5 fl oz
Vitamin CPHA
Skin1004
Madagascar Centella Ampoule
~$24· 3.38 fl oz
Centella AsiaticaMadecassoside
Actives breakdown
| Active ingredient | Neutrogena | Skin1004 |
|---|---|---|
| Vitamin C | ✓ | — |
| PHA | ✓ | — |
| Centella Asiatica | — | ✓ |
| Madecassoside | — | ✓ |
Layering & Safety
Combined Verdict
Safe to layer
No layering conflicts flagged between these two. Patch-test new actives as usual.