The Ordinary Niacinamide 10% + Zinc 1% vs Simple Simple Booster Serum - 10% Niacinamide
The Ordinary
Niacinamide 10% + Zinc 1%
From $6· 30 ml
Niacinamide
Simple
Simple Booster Serum - 10% Niacinamide
From $18· 1.01 Fl Oz (Pack of 1)
Citric AcidGlycerinNiacinamide+2 more
Actives breakdown
| Active ingredient | The Ordinary | Simple |
|---|---|---|
| Niacinamide | Yes | Yes |
| Citric Acid | No | Yes |
| Glycerin | No | Yes |
| Panthenol | No | Yes |
| Vitamin E | No | Yes |
Layering & Safety
Combined Verdict
Safe to layer
No layering conflicts flagged between these two. Patch-test new actives as usual.