I first got square jaw Botox and cobblestone chin Botox, and then I wanted to get Shurink too, so I got it 3 days after the Botox (I asked the clinic and they said it was possible)
I got 200 shots, and it didn’t hurt; it just felt strange. The cheekbone area stung slightly. Yesterday I wondered if there was no effect at all, but today both jawlines look a bit sharper.
Jaw Botox definitely does make the muscle smaller. According to the director, the effect reaches its maximum after 2-3 months