Start with the product's own paperwork
Ask your provider for the product's own documentation on how long it is expected to last. This page gathers the points to raise about what could shorten or extend that, for the specific product they propose.
Why one number won't fit
Longevity is a question about one product in one area on one person. A general number for "filler" answers none of those. Check the page the FDA keeps on dermal fillers for how fillers are described. ASPS has an article on what to know about dissolving filler, which matters if you ever want a filler removed rather than waiting it out.
Four questions on lifespan
- Ask which product is proposed and how long your provider expects it to last for you.
- Ask what could change that estimate, such as the area treated or your own habits.
- Ask what the plan is if you want the result to end sooner.
- Ask when a touch-up would be due and what it would cost, in writing.
A caution on longevity claims
Treat any single longevity number you read online as unverified until it names the product, the area and the source. As readers of filler documents rather than injectors, we give no medical advice here.