Typically, the effect of lip fillers lasts up to 3-9 months. Repeat injections may be needed, if you wish to sustain the effects of the lip filler. Because the duration of effect is dependent on the type of product used, your doctor should be able to provide a definite answer on how long the filler would last.

If for any reason whatsoever, you decide to discontinue the lip injection, you can be sure your lip would retract back to its original state.