I'm an idiot. I read "MAX 55%, PG 35%, VG 10%, water, flavouring" and didn't think much about it since I thought water and flavoring make up 60% of the juice, but of course it says "55% PG, 35% VG, 10% water". My bad.
Yes, I do have that, but I don't think I'm experienced enough to be fiddling...