The Ordinary Niacinamide 10% + Zinc 1% vs Tatcha The Longevity Serum
The Ordinary
Niacinamide 10% + Zinc 1%
From $6· 30 ml
Niacinamide
Tatcha
The Longevity Serum
From $80· 1 Fl Oz (Pack of 1)
DimethiconeEGCG (Green Tea)Glycerin+3 more
Actives breakdown
| Active ingredient | The Ordinary | Tatcha |
|---|---|---|
| Niacinamide | Yes | No |
| Dimethicone | No | Yes |
| EGCG (Green Tea) | No | Yes |
| Glycerin | No | Yes |
| Rice Ferment Filtrate | No | Yes |
| Squalane | 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.