Flash Eyelash Serum vs The Ordinary Niacinamide 10% + Zinc 1%
Flash
Eyelash Serum
From $45· 0.07 Fl Oz (Pack of 1)
GlycerinHyaluronic AcidPanthenol
The Ordinary
Niacinamide 10% + Zinc 1%
From $6· 30 ml
Niacinamide
Actives breakdown
| Active ingredient | Flash | The Ordinary |
|---|---|---|
| Glycerin | Yes | No |
| Hyaluronic Acid | Yes | No |
| Panthenol | Yes | No |
| Niacinamide | No | Yes |
Layering & Safety
Combined Verdict
Safe to layer
No layering conflicts flagged between these two. Patch-test new actives as usual.