The duration of lip filler results can vary depending on the type of filler used, your metabolism, and individual factors. Generally, lip fillers are not permanent, and the effects can last anywhere from six months to a year or more. If you loved your initial results and want to maintain them, scheduling a touch-up is a good idea.The timing for a touch-up will depend on the specific filler used, how your body metabolizes it, and how your lips naturally change over time. Most people choose to schedule a touch-up appointment before the effects of the initial treatment completely wear off. This allows for a seamless transition and helps maintain a consistent look.It's advisable to follow up with your injector or healthcare provider for guidance on when to schedule a touch-up. They can assess the current state of your lips, discuss your satisfaction with the results, and recommend an appropriate timeline for a touch-up based on your individual case.Keep in mind that it's essential to go to a skilled and experienced injector for lip filler treatments to ensure safety and achieve desirable results. Additionally, be open and communicative about your preferences and expectations during the follow-up appointments to achieve the best possible outcome.