I'm looking into both filler options to address loss of facial volume (cheeks) and skin rejuvenation. My skin concerns are acne scarring, hyperpigmentation, large pores and skin texture. As such, I think reg microneedling or Vivace are the options I'd like to try. Since the benefits of these treatments include collagen stimulation and maybe skin tightening, should I try these before getting fillers....or does it matter? Can Vivace still work on a face that has had filler (e.g. Voluma) injected?