I had Voluma on 11/10/22 and went for a touch up to get some imperfections evened out about 6 weeks later. To date I would say I have retained a good 65% from both injections. The degradation has been somewhat uneven though. If you go every year for a top off I think you'll be fine and you would continue to gain. I'm looking to switch over to
PMMA so I'm not going back for more
HA.