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Patients observe immediate smoothing and contouring, with final results visible within 7 days as the gel settles and hydration balances. Ultrasound tracking shows \~70 % volume retention at six months and \~50 % at nine months, with areas of lower mobility (such as the chin and cheeks) typically holding benefits longer. Because of the gel’s moderate viscosity and low water uptake, day-one results are a good predictor of the month-one appearance. Standard-dose hyaluronidase provides a predictable, safe method for reversal if necessary.