I'm wondering whether combing Sculptra (or another PLLA stimulator) and HA filler is suitable? I have read that some injectors combine the two in the same syringe to create a hybrid filler. Is this possible? My concern would be whether a high quantity of HA filler would then stop the Sculptra PLLA from working.. or does having HA filler in the same area have no impact on Sculptras effectiveness is stimulating collagen?