It lasts six to twenty-four months depending on site and product. The lips, which move a lot and have thin skin, are at the short end; the chin, where a firm product goes into a deep layer over bone, at the long end. Even the same product varies greatly by site, so asking per site is more accurate.

Downtime is mild at one to three days, with swelling and bruising for a few days. It differs a lot by site, though — the lips swell more visibly, while the chin, filled deep over bone, bruises less. Since it depends on the site, it is worth checking at the consultation.

Hyaluronic acid filler can be reversed with a dissolving injection. Collagen-stimulating and calcium-based products do not dissolve, though, so it is worth confirming in advance which product goes where and in what volume. That is what determines both the result and the price.