Is It Possible That Juvederm Lasts over 18 Months ?

Generally, Juvederm Ultra
Plus XC lasts for approximately 9-12 months, but this can be shorter or longer depending on your body. I recommend you see your injector again and discuss your concerns with them. Hyaluronidase can be used to dissolve any residual filler or another treatment may be more suitable.

Although this is an area that tends to dissolve the filler quickly, it is possible that the result can stay for more than a year. If you are unhappy with the result, it might be worth having hyaluronidase injected into the area to see if it dissolves.

A Juvederm injection to the nasolabial fold will generally last up to one year.  On some individuals I have seen it last longer and on others not as long.  It all depends upon the rate at which your body metabolizes the product.

Extensive trials and reports have shown that Juvederm typically dissolves within 6 months to one year after injection. However, anecdotally, many patients have reported feeling the substance up to 3 years later. If you are concerned about the appearance of your lips, I recommend returning to your physician and requesting that they use hyaluronidase to dissolve whatever product may still remain.

While you may have the feeling that the filler material is still there, it is highly unlikely that it really is. Juvederm simply doesn't last that long, nor does any known approved hyaluronic acid-based injectable filler. For the sake of discussion, let us assume it is still there. You have now waited 18 months. Rather than having any hyaluronidase injected into the lips, just give it more time. You have waited this long. Just give it a few more months as it is a self-solving concern.

Although most variations of juvederm will last between 6 months to one year, in some areas as it is inejcted more superficially will last longer. IT can be dissolved with hylauronidase.

Juvederm can last a long time and if you are not happy with it, it can be injected away with hyaluronidase.

Unfortunately, it seems the filler that lasts longest is the filler put in the wrong spot. Juvederm can last 18 months or longer in rare individuals. It can, however, be dissolved by hyaluronidase, if you want to remove it sooner. It is not the best filler for the vermillion border, but it certainly was not "wrong" to place it there. Perhaps it was just too much.