How Long Do Wrinkle Relaxers Last? A Realistic Timeline from a Brickell Injector

If you are considering a wrinkle relaxer for the first time — or you have been treated before and your results seemed to disappear faster than you expected — the question is the same: how long does this actually last?

The short answer for facial smoothing neurotoxin, Dysport, and Xeomin is three to four months for most people, in most areas. But that number hides a timeline with several distinct stages, and knowing them helps you plan treatments around your calendar instead of guessing.

The Timeline, Week by Week

Day 0 — treatment day. The appointment itself takes about 15–20 minutes. You can go back to work right after. Nothing looks different yet, because the product has not started working — it needs time to bind at the nerve endings that tell your muscles to contract.

Days 2–4 — the first softening. Most people notice their frown lines or forehead lines starting to relax. Dysport tends to show its first effects a day or so earlier than the others for many patients.

Days 7–14 — full effect. This is when you see your real result. If you are treating before a wedding, a reunion, or photos, book at least two weeks ahead. It is also why we never judge a treatment — or add more units — before the two-week mark.

Months 1–2 — the plateau. Lines stay smooth, and expression stays natural when the dose is right. This is the stretch where people forget they had anything done.

Month 3 — movement returns. The nerve endings gradually rebuild their connections, and you will notice your muscles firing again. Faint lines may start to reappear with expression.

Months 3–4 — time to rebook. Most patients return somewhere in this window. Waiting longer will not harm anything — your face simply returns to its baseline — but treating before lines fully re-etch keeps the result continuous.

Why Your Results May Last Longer — or Shorter — Than Someone Else's

Three to four months is the average, not a guarantee. The biggest variables we see in the treatment room:

• Dose. This is the one patients underestimate. A conservative "baby" dose looks subtle but wears off faster — sometimes in eight to ten weeks. A full corrective dose in the same area typically holds the full three to four months.
• Muscle strength. Strong frown muscles (the "11 lines" between the brows) chew through product faster than delicate crow's feet. Men often need higher doses for the same duration for exactly this reason.
• Metabolism and activity. Very active patients — daily runners, spin-class regulars, athletes — often metabolize neurotoxin somewhat faster. It is not a reason to skip the gym; it just may shift your rebooking window earlier.
• The area treated. Glabella and forehead results tend to be the most durable. Areas with thin, highly active muscle, like crow's feet or a lip flip, fade sooner — a lip flip may only last six to eight weeks.
• How many rounds you have had. With regular treatment, many patients find the treated muscles weaken slightly over time, and results begin to stretch longer between visits.

Do Dysport or Xeomin Last Longer?

In head-to-head studies, all three products land in the same three-to-four-month range. The differences are subtler: Dysport often kicks in a touch faster and spreads slightly more (useful for broad areas like the forehead), while Xeomin is a "naked" formulation without accessory proteins. Duration alone is rarely the reason to pick one over another — fit for your anatomy and goals is. Our guide to choosing between the three covers that decision in depth.

What Maintenance Actually Costs

At Miami Skin Spa, facial smoothing neurotoxin is $14 per unit, and Dysport and Xeomin are $13 per unit — current pricing is always on our pricing page. A typical treatment runs roughly 20–50 units depending on how many areas you treat and how strong your muscles are, and most patients maintain with three to four visits per year. Your injector will give you an exact unit count at your consultation, so the quote is based on your face rather than an average.

How to Make Results Last

• Come in at the cadence your face actually needs — for most people that is every three to four months, not "whenever the lines look bad again."
• Treat at an effective dose. Stretching a small dose across many areas is the most common reason first-timers think a product "didn't work."
• Protect the skin itself: daily SPF and a retinoid address the etched-in lines that relaxers alone cannot erase. Pairing treatment with medical-grade skincare is what keeps skin looking smooth between visits.

Frequently Asked Questions

My results faded after two months. Was something wrong?

Usually not. Fast fade is most often a dose issue — strong muscles, conservative units — or an area that naturally wears off sooner. Bring the timeline to your next visit; adjusting the dose or product usually fixes it.

Can I stop after one treatment?

Yes. Your muscles simply return to normal movement over three to four months, and your lines return to their baseline. Nothing gets worse than it was before.

Does it last longer the more I do it?

Often, yes. Repeated treatment can gradually weaken the targeted muscles, and many long-term patients stretch to four or even five months between visits. Results vary from person to person.

When should I book before an event?

Three to four weeks out is ideal: full effect by day 14, plus buffer for a touch-up if needed.

Plan Your Timeline with a Brickell Injector

Miami Skin Spa is located at 1501 South Miami Avenue #201 in Brickell. Whether you are considering your first treatment or trying to figure out why your last results faded early, book a consultation and we will map a dose, product, and schedule to your face — with an exact per-unit quote before anything is injected. You can see the full menu on our injectables and fillers page.