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Because Volbella swells little, what you see on day 1 is close to week 4. Ultrasound follow-ups show lips holding about 70 % of their fill at six months and 50 % at twelve; barcode lines can stay smooth up to 15 months. Tear-troughs average a year. Smokers or heavy sun-lovers may need an eight-month touch-up. Collagen sparked by gentle stretch leaves a faint “skin-quality bonus” that lingers even after the HA fades. Need a do-over? Just 5–8 IU of hyaluronidase per 0.1 ml melts Volbella in minutes.