01 · The problem
It is probably not you.
What you are using
Niacinamide serum Peptide cream Ceramide moisturizer Antioxidant toner Vitamin C dropsWhat your skin shows
All the right names. And not much to show for it.
The reason is usually simple. The ingredient was in there. The working dose was not.
Both products print this exact line
10× more niacinamide. 5% is the amount the studies used.
Same word on both labels. Ten times more of it in one. The label will not tell you which one you bought.