Flash Eyelash Serum vs The Ordinary Niacinamide 10% + Zinc 1%
Flash
Eyelash Serum
~$45· 0.07 Fl Oz (Pack of 1)
GlycerinHyaluronic AcidPanthenol
The Ordinary
Niacinamide 10% + Zinc 1%
~$6· 30 ml
Niacinamide
Actives breakdown
| Active ingredient | Flash | The Ordinary |
|---|---|---|
| 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.