Ksecretseoul Niacinamide Serum

Ksecretseoul Niacinamide Serum is a skincare formula built around niacinamide as its key ingredient. It comes in a serum format for direct application to the skin. The product is part of the Ksecretseoul line and is intended for facial use. Its lightweight texture absorbs without leaving a heavy residue. Suitable for daily skincare routines focused on niacinamide.