Different factors affect
how long filler lasts. Product type matters: denser hyaluronic acids used for cheeks often last longer than softer gels used for lips. Your individual metabolism also plays a big role. People with faster metabolisms or higher facial movement may see earlier breakdown of product.
Environmental and behavioural factors matter too. Sun exposure, frequent sauna or very hot baths, smoking and repeated heavy exercise right after treatment can all shorten visible duration. Coastal weather itself does not dissolve filler, but windy, sunny or drying conditions can accelerate skin dehydration, which makes results look less smooth.