This is the question that comes up before anyone even asks about price. How long will it last. And the honest answer is a range, not a number, because the timeline depends on the product, the area, and the person carrying it around on their face. Let me give you the ranges most providers actually see, and then explain why yours might land at either end of them.

Hands in pink gloves preparing syringe with vial

Botox and the other neuromodulators

For most people, a Botox treatment holds its full effect for roughly three to four months. Then movement gradually returns and the lines start showing again. Dysport and Xeomin behave in a similar window, with small differences that rarely matter as much as the marketing suggests.

Notice the word gradually. Neuromodulators do not switch off on a set day. They fade. You will usually notice movement creeping back before the treatment is fully gone, which is why a lot of people book their next session a little before the four month mark rather than waiting to look like they did before.

What shortens that window? A fast metabolism plays a role, and so does heavy exercise, since very active people sometimes report their results fading a touch sooner. The dose matters too. Skimp on units and the effect will not last as long, which is a common reason a first result feels disappointing.

Filler is a much wider range

Filler is where the numbers get slippery, because there is no single filler. Most popular products are hyaluronic acid gels, and depending on the formula and where it goes, they can last anywhere from around six months to two years. That is a huge spread, so the area matters more than almost anything.

Filler in a busy, mobile area breaks down faster than filler in a quiet one. Your lips move all day. Your cheekbones mostly do not.

Lips, because they are constantly moving, tend to metabolize filler faster and often need refreshing sooner. Cheeks and the deeper structural areas sit quietly and can hold their result far longer. Thicker, firmer gels are designed for that deeper structural work and generally outlast the soft gels used for delicate spots.

Why your friend's timeline is not yours

Two people can get the same treatment on the same day and be back at different times. Metabolism is the big variable nobody can see. Some bodies simply break these products down faster. It is not a sign anything went wrong, and it is not something you can force.

The first round of filler in a new area can also seem to disappear quicker than you expected. Part of that is swelling settling, so what looked like a big result at week one was partly puffiness that was always going to fade. The true, settled result is what you should measure against, not the day-one mirror.

Getting more out of every session

You cannot change your metabolism, but a few things genuinely help results hold:

If you are weighing your first appointment and want to see how a clinic frames its options, it helps to look over Skin Anthology's injectables options before you go, so the consult is a conversation and not a cold start.

treatment chair and laser machine in a clean room

The realistic mindset

Injectables are maintenance, not a one-time fix. That is the single most useful expectation to carry in. Nobody gets Botox once and is done, and filler, while longer lasting, is not permanent either. Budget for it as an ongoing thing at whatever pace suits you, rather than being surprised when the effect wears off exactly as it was always going to.

The upside of that impermanence is real. If you do not love a result, you wait, and it leaves. Few decisions in aesthetic medicine come with that kind of built-in undo button. Go in knowing the ranges, pick a provider who explains their reasoning, and let the timeline be what it is.