I have previously had Juv 4 but required 2 syringes to give me the plump effect on my cheeks. This lasted about 12 months. I was advised next time round to have Sub Q as I would only require 1x 6ml syringe to achieve this effect (both cost roughly the same £ 600)But is thicker in consistancy ? What is the best filler to ask for..is this correct? This was from a highly recommended Dr in London...we don't seem to have the choice of treatments here in the UK so would greatly appreciate any advice ?