Had teosyal ultra first time 9 months ago. 1 ml divided between top and bottom lip.I did not like it and hyalurondaise is out of the question so im just waiting. There are studies proving collagen formation from HA-fillers which worries me. Is it likely that my lips will go back to exactly how they were before the procedure in shape and volume or has collagen formation forever changed them? I understand that some aging might have taken place. Thank you!