I think 2 acids every night might be over kill. I would just stick to one of the two maybe every other day or so until you run out.This week I just started double-cleansing just to see if it can actually help with my combination skin's oily areas. Though mostly due to accumulating so many products that I'm basically trying to use the older ones up to try out my newer purchases.
I haven't used toner in forever but since this one has an AHA (Azealaic? Idk how to spell) and I have a glycolic acid facial serum that's meant to go after toner, I worry about whether or not to use these two every night or every other night for fear it could dry my skin out more based on frequency. Currently my face isn't nearly as dry since I started using them with double cleansing, I mostly need them to help with my oily T zone and dark spots from acne.