Not sure about the %'s of acids in FAB pads.
I get the sort of pimples that are almost like water blisters under the skin when I switch to new products. I have to say Clinique often results in this. Moisture Surge and the mild clarifying lotion in particular both did it.
I've switched to Decleor for a change. I've always used the night balms and love the fact they don't really have an expiry date so I can put them away for a while and pick up again when needed.
My current routine is
AM
micellar
Fab radiance pads
Decleor oil serum
Moisturiser
Heliocare 50+
PM
Double cleanse, micellar then alpha h balancing cream cleanser
LRP redermic every other night
Decleor balm every other night