Azelaic Acid >15%

Hey people!
As the weather gets sunnier here in Ireland (I know - it sounds like an oxymoron 😅), the melasma under my eyes gets more visible.

Can you tell me what I’m missing in my routine if I want to fight the melasma?
Or could you recommend some products (Korean, Japanese, and available in Europe), please? 🥺

My morning routine:
numbuzin no5 toner, Geek&Gorgeous C-Glow, CYoung’s Hana cream and sunscreen (and occasionally the Ordinary’s AHA toner).
Recently, I've also started using medicube’s Azelaic Acid 16% BB Serum (with niacinamide in it), but its lavender smell bothers me so much!

My night routine:
numbuzin no5 toner (but I already have the no9 NAD+ toner lined up), Geek&Gorgeous Retinal 20, CYoung’s Hana cream (occasionally LRP’s Cicaplast when my skin hates me).

My skin is 45yo, dehydrated, combo, with redness and some sensitivity.

I’d like to focus on Azelaic Acid (stronger than the usual 10%), and perhaps use some good bakuchiol?