On average, Xlash Eyelash serum 3 ml lasts between 2 to 3 months of daily use. Xlash 5ml last between 5 to 6 months of regular use.
However, often our customers use Xlash daily for 2 to 3 months, and after that, they maintain the achieved results by using it 2-3 times per week. This, of course, impacts how long the product lasts.
For hygienic reasons, we recommend replacing your Xlash 8 months after it's been opened. For an unopened product, the shelf-life is three years.