How often should eyelash extensions be filled or refilled?

Eyelash extensions should be filled or refilled every 2 to 3 weeks. This timeframe accounts for the natural growth cycle of eyelashes, which typically sees individual lashes shed and new ones grow in. As natural lashes fall out, the extensions attached to them also fall off, creating gaps. Regular fills every 2 to 3 weeks help maintain a full and even appearance by applying new extensions to the new lashes that have grown in, ensuring that the overall look remains polished and attractive.

Filling extensions too infrequently can lead to a sparse appearance, making the extensions look less appealing. While some may believe that longer intervals like every 4 to 5 weeks or even once a month might suffice, this can often result in a noticeable decrease in fullness and the style achieved initially. The suggested time frames of 6 months are far too long, as by then, most of the extensions would likely have shed, making refilling unnecessary and potentially leading to an uneven or incomplete result.