Hi everyone 
Following our conversation yesterday, I became curious about the current situation regarding boosters here, so I checked in at the local vape shop to inquire.
It is currently available here. (This is near Lake Velence.)
The saleswoman said that they don’t keep many in stock because there isn’t much demand for it, but they can order it upon request.
It is available for 1450 Ft per piece. 18mg, 10ml. The PG/VG ratio is not indicated on the box, but I am correcting my mistake regarding this, as based on the ingredients it is definitely not 100% PG. However, it wasn’t clearly stated on the box and the lady couldn’t tell me either. It might be in the box, in the description. I don’t know this because I didn’t buy it. I assume this might be the same one you showed, @John.
The seller allowed me to take photos:
Well, that’s it, at least it’s available here if it becomes absolutely necessary.