Let’s get the marketing-brochure answer out of the way first, because you’ve probably already read it forty times: “Results typically last 3-4 months.”
Cool. Great. Very helpful. Also basically meaningless, because that sentence is doing the same thing a weather app does when it says “70% chance of rain”. Technically true, practically useless when you’re the one standing outside without an umbrella.
So here’s the real answer: it depends on you. Annoying, I know. But let’s actually break down why, because once you understand the variables, the mystery mostly disappears.
The Metabolism Thing Nobody Warns You About
Neurotoxin doesn’t sit in your muscle like a tiny security guard clocking in for a 90-day shift and then walking off the job on day 91. It gets metabolized, broken down by your body over time, and how fast that happens depends heavily on your individual metabolic rate.
Translation: if you’re someone who burns through medications quickly, works out constantly, or just has a naturally fast metabolism, you might be back in that “wait, is my eyebrow moving again?” territory at the 6-8 week mark. Meanwhile someone else in the treatment chair next to you, same units, same injector, same day, cruising at month five still looking like a Renaissance painting that doesn’t frown.
This is also why “how long does it last” is a genuinely unfair question to ask a stranger on Instagram. They’re not lying to you. They’re just describing their own body, not yours.
Dose Matters More Than People Want to Admit
There’s a version of this industry that treats units like a loyalty punch card, buy 20, get a stamp, buy enough and you’re basically a VIP. And look, there’s truth to the idea that more product generally buys more time and more relaxation of the muscle. But “more units” isn’t a personality trait you can just decide to have. It’s a clinical decision based on your muscle strength, your goals, and honestly, your face.
Someone with strong, expressive corrugator muscles (the frown-line muscles) chewing through a light dose is going to see movement come back faster than someone with a lighter muscle getting the same treatment. This is why a good consult isn’t just “how many units do you want”, it’s someone actually looking at how your face moves before deciding anything.
Frequency Trains Your Muscles (Sort Of)
Here’s the part that actually gets people to convert from skeptics to regulars: consistent treatment over time can train the muscle to relax more, meaning some people find their results stretch out longer the more consistently they treat. It’s not magic, it’s not permanent, and it’s not guaranteed for everyone, but it’s a real, observed pattern, not an upsell fantasy.
Where Injected Actually Matters
Forehead, glabella (the “11” lines), crow’s feet, these areas all behave differently because the muscles are different sizes, doing different jobs, moving at different speeds throughout the day. A treatment plan that ignores that and just wings the same approach everywhere is a treatment plan that’s guessing.
So… How Long Does It Last?
Somewhere between “shorter than the brochure promised” and “longer than you expected,” depending on your metabolism, your dose, your muscle strength, where it’s placed, and how consistent you are. Riveting, I know. But it’s the truth, and I’d rather tell you the truth than a number that sounds nice on a price list and means nothing once you’re the one living in your own face.
If you want an actual answer, not a marketing average, but your answer, that’s what a consultation is for. We look at how your face moves, talk through your goals, and build a plan around your actual biology instead of a generic timeline. It’s less “pick a package,” more “let’s figure out what your face is going to do.”
Book a consult, and let’s find out together. No guesswork, no guarantees we can’t back up. Just an actual plan.