A good face serum should make your routine more useful, not more confusing. If it sits there unused, it is not the right serum.
What it should do
It should solve one visible problem well: dullness, marks, or oil balance.
What it should not do
It should not promise to do everything in one bottle.
Easy starting point
If you want glow, start with Minimalist Vitamin C. If you want marks and oil control, Plum Niacinamide is the cleaner fit.
