Kosas Growpotion Fluffy Lash + Brow Boosting Serum vs The Ordinary Niacinamide 10% + Zinc 1%
Kosas
Growpotion Fluffy Lash + Brow Boosting Serum
~$48· 0.11 Fl Oz (Pack of 1)
Citric AcidGlycerinHyaluronic Acid+1 more
The Ordinary
Niacinamide 10% + Zinc 1%
~$6· 30 ml
Niacinamide
Actives breakdown
| Active ingredient | Kosas | The Ordinary |
|---|---|---|
| Citric Acid | ✓ | — |
| Glycerin | ✓ | — |
| Hyaluronic Acid | ✓ | — |
| Panthenol | ✓ | — |
| Niacinamide | — | ✓ |
Layering & Safety
Combined Verdict
Safe to layer
No layering conflicts flagged between these two. Patch-test new actives as usual.