If you're curious about Dysport as a non-invasive treatment to rejuvenate your face, you've probably been on Reddit to hear from real users and their experiences. That's a useful starting point — but we thought you should also hear from a real board-certified dermatologist practicing here in NYC. Below, Dr. Gilberto Alvarez answers some of the most common Dysport concerns we see come up online.
First, a quick note on terminology
"Botox" is technically a brand name, the original neuromodulator made by Allergan. "Dysport" is a different brand, made by Galderma. Both are forms of botulinum toxin type A, the same general category of medication, in different formulations.
People often use "Botox" loosely to mean any wrinkle-relaxing injection, the way people say "Kleenex" for tissues. In this post, when we say Botox, we mean the specific Allergan product — because that's the comparison Reddit comments are actually making.
Botox and Dysport are both neuromodulators. Chemically they’re different molecules, but they share the same mechanism of action — they both relax the muscles that create dynamic wrinkles. So when patients ask me which one is “better,” my honest answer is that for most people, the two are interchangeable. In my experience, most patients can’t tell a meaningful difference between them when both are dosed and placed correctly.
That said, there is some truth to the longevity claim — for some patients. There are studies showing Dysport may kick in slightly faster than Botox, and some patients feel like Dysport lasts a little longer or spreads a little more across the muscle. Whether you’ll be one of those patients is something we figure out by trying it and tracking your results.
The bigger driver of how long your results last isn’t actually the brand — it’s you. Some patients are fast metabolizers of neuromodulators, but it’s usually not their metabolism literally clearing the molecule faster. It’s often related to how strong their facial muscles are, whether they have low zinc levels, or whether their nervous system is faster at creating new synapses at the injection site.
The zinc piece (most Reddit threads miss this)
This is the part you almost never see on Reddit, and it’s one of the most useful things we can check. For some patients whose results aren’t lasting as long as they’d like, supplementing with zinc can extend the duration of Dysport (and Botox). It’s not a fix for everyone, but in the right patient, it makes a noticeable difference. That’s the kind of detail that comes from a dermatologist who’s actually tracking your results visit to visit.
This one is more nuanced than Reddit makes it sound. Yes, Dysport and Botox are priced differently per unit — but unit-to-unit comparisons aren’t apples to apples, because the products are dosed differently. Looking at “cost per unit” without looking at “units per area” will give you the wrong picture every time.
In our practice, we don’t differentiate between Botox and Dysport on price. We charge by treatment area and by what your face actually needs to get a natural, lasting result. The reason is simple: what you’re paying for isn’t the product. You’re paying for the injector — someone who’s spent years studying facial anatomy, who knows how your specific muscles move, who can read your face at rest and in animation, and who’s going to use the right amount of the right product in the right places.
If a clinic in NYC is competing on price for a single product brand, that’s worth paying attention to. The cost difference between offices is rarely about the bottle on the shelf.
This scenario is real, but it’s not super common, and people on Reddit talk about it more than it actually happens.
Here’s what’s going on biologically: neuromodulators are proteins. In a small number of patients, the immune system can recognize that protein as foreign and form antibodies against it. When that happens, the product stops working — you start needing higher doses to get the same result, and even those don’t last.
If that’s truly happening to you, switching brands can sometimes help, because Botox and Dysport are different molecules — antibodies against one don’t necessarily neutralize the other. There’s also a third option: a neuromodulator with a lower protein content, which can sometimes work for patients who’ve developed antibodies against the major brands.
But — and this is the important part — most patients who feel like their Botox “stopped working” haven’t actually become resistant. The far more common explanations are dosing that hasn’t kept up with muscles getting stronger over time, injection placement that needs adjusting, or expectations that have shifted. Real antibody-mediated resistance is something we evaluate carefully before recommending a switch, because if that’s not what’s happening, switching brands won’t solve the problem.
Both Botox and Dysport can leave you looking frozen. Both can also leave you looking refreshed and entirely natural. The difference is the person holding the syringe — their technique, their dosing, and their willingness to do less when less is what your face needs.
The “frozen” look is almost always a result of overdosing or poor placement. A skilled injector titrates the dose to your anatomy, leaves enough movement so your face still expresses the way you do, and adjusts based on how you respond at the two-week mark. None of that is about which brand is in the vial.
Dysport contains a small amount of cow milk protein. If you have a true cow milk protein allergy — meaning a real immune response to dairy proteins, with hives, swelling, or anaphylaxis — then yes, Dysport is not the right product for you, and we’d recommend Botox or another alternative.
But that’s a different thing from lactose intolerance. Lactose intolerance is a digestive issue: your gut doesn’t produce enough of the enzyme to break down the sugar in milk. It’s not an allergy, and it has nothing to do with how your immune system responds to milk proteins. If you’re lactose intolerant or just get an upset stomach from dairy, you can absolutely get Dysport.
Other times we’d hold off on Dysport
A known allergy to any of the product’s ingredients is a hard no. So is pregnancy or breastfeeding — and that one applies to Botox as well. None of the neuromodulators are recommended during pregnancy or while nursing, regardless of brand.
Some patients swear by combining the two: Botox in the 11s and crow’s feet for precision, Dysport across the forehead because they feel it gives a smoother “sheet” effect across the whole area. If that’s working for you and you love your results, there’s no reason to change it.
But I’ll tell you what I tell my patients in consultation: in most cases, you can get the same result with just one product, in the hands of an injector who knows what they’re doing. The combo approach isn’t usually necessary — it’s a personal preference more than a clinical one. If you’re paying twice for two product visits to chase a marginal aesthetic difference, that’s a conversation worth having with your provider before your next round.
Reddit can be a great way to feel less alone in a question. It’s a much worse way to make medical decisions about your face. The information in those threads isn’t always wrong, but it doesn’t know your history — your anatomy, your goals, your medical history, or what’s actually going to look right on you.
If you’re trying to figure out whether Botox, Dysport, or something else entirely is the right call, the most useful next step is sitting down with a board-certified dermatologist who can look at your face, ask the right questions, and walk you through your options.
Ready for answers tailored to you? Book a consultation with Dr. Alvarez at Downtown Dermatology in Tribeca or contact the office. Consults are available in English and Spanish.
