KSECRET SEOUL 1988 Serum vs The Ordinary Niacinamide 10% + Zinc 1%
KSECRET
SEOUL 1988 Serum : Retinal Liposome 2% + Black Ginseng
From $15.4· Standard Size
RetinaldehydeNiacinamideVitamin C+6 more
The Ordinary
Niacinamide 10% + Zinc 1%
From $6· 30 ml
Niacinamide
Actives breakdown
| Active ingredient | KSECRET | The Ordinary |
|---|---|---|
| Retinaldehyde | Yes | No |
| Niacinamide | Yes | Yes |
| Vitamin C | Yes | No |
| Bakuchiol | Yes | No |
| Adenosine | Yes | No |
| Glycerin | Yes | No |
| Vitamin E | Yes | No |
| Cholesterol | Yes | No |
| Panax Ginseng | Yes | No |
Layering & Safety
Combined Verdict
Safe to layer
No layering conflicts flagged between these two. Patch-test new actives as usual.