I know some actives cannot be used at the same time as others, but can someone advise me please.
Can a syn- ake serum ( which I think is a peptide?) and a hyaluronic acid serum in the morning, then a niacinamide serum and an azelaic acid serum in the evening?
Is this too much? Or do I consider alternate days, or reduce the number?
Trying to improve wrinkles, but also rosacea/ redness and sensitive skin.
TIA