Seems like she drops a massive glob of filler into everyone's jawline, particularly gonial angles. I think a lot in the malars and anterior zygoma area too. God if only it was so simple and jaw angle implants worked this well. I don't trust those results to last and, particularly in the US, all that extremely temporary filter must cost thousands to inject every year or so.
Kinda looks like someone gets the doc's jawline injected too, at the very least.
The results would last if the substance used is what I think it is. Very likely, the subtance used is 'bioplasty', 'bioplastica' used by a LOT of doctors in BRAZIL and popularized by Dr. Almir Nacul who has a clinic for it and has written books, given talks etc where other doctors on the aesthetic use of the substance.
Only doctors are allowed to use it. But there are clinics where unqualified administer it. Not sure if the woman in the Instagram link is 'doctor'. Looks more like she has a dental degree and quite CLEAR she's playing cat and mouse with Brazil Med association by using Instagram to show her stuff where she KNOWS she can't do that on her OWN website/domain.
It's made from PMMA (polymethylmethacrylate) particles and basically a permanent filler that acts as an 'injectable implant'. But like other permanent fillers, it can come with some risks of LATE STAGE infections or even necrosis in which case the soft tissue where it was placed in has to be removed.
Undoubtedly, it's very TEMPTING to get and again, a LOT of docs in Brazil can do what you see to the faces in those photos. It's APPROVED in BRAZIL and has been used to correct HIV facial fat loss. Not much of a jump from there to conclude it can also be used to create more shape and form to the face in non HIV patients.
Nacul, who is basically the 'creator' of the substance and 'the' Brazilian doc most flocked to for having has stated he's had no infections or serious consequences with it when the substance came UNDER FIRE and with WARNING as to it's use by a Medical Council in Brazil. But again, he's the one who would have a lot, if not the most, experience with it. Other doctors warn that there is basically no treatment for it if it becomes a big problem later down the line.
The stuff is NOT approved in USA (too many problems with injectable PERM fillers or otherwise known as 'injectable implants'). I would caution anyone wanting what you see in those photos--who would go to BRAZIL to get it--to find a REPUTABLE, LEGIT plastic surgeon over there to do it. The woman plastering Instagram with the photos is not a legit PS.
There are some gruesome photos of when it makes complications.
Ref=
http://www.diariodeumadismorfia.com.br/2013/01/21/substancia-usada-em-bioplastia-pode-ser-prejudicial-a-saude-pmma-polimetilmetacrilato