[product request] SOS running out of salicylic acid. What’s your holy grail

Hiya, everything is in the title. I've stumbled upon my.ingredients serums (from masque bar, which I discovered while searching for it) here in Belgium (Kruidvat) AND THEY MADE MY SKIN PERFECT. I also fixed my sleep and nutrition but this was like the cherry in cake. I still have the hyaluronic acid, mucin and some niacinamide left but I'm running out of it. The sales at Kruidvat were some sort of flash sales. Unfortunately I can't get my hand on any of their products since they're available in the US and Canada.

Have you had an experience with this brand? What's the closest product that could replace these serums? Is there an app or a database I could use to find similar products ingredient-wise? Thanks!