If you have spent any time researching wrinkle relaxers, you have met the same three names: Botox, Dysport and Xeomin. Marketing makes them sound like rival philosophies. In reality they are close cousins — all three are FDA-approved formulations of botulinum toxin type A, all three relax the muscles that crease skin when you frown, squint or raise your brows, and all three wear off gradually over roughly three to four months.
The differences are real, but they are quieter than the advertising suggests. Here is how we think about them in the treatment room.
Same molecule, different wrapping
Botulinum toxin type A is the active ingredient in all three products. What differs is everything around the molecule.
Botox (onabotulinumtoxinA) is the original and the most studied. Its neurotoxin is packaged with accessory proteins, and its decades of clinical use mean providers know its behavior intimately — how far it spreads from the injection point, how it doses, how long it lasts.
Dysport (abobotulinumtoxinA) is formulated at a different molecular weight distribution, which in practice means it tends to diffuse a little more broadly from the injection site. For larger areas like the forehead, that spread can be an advantage: fewer injection points, a soft, even result. Many patients also report that Dysport kicks in a day or two sooner.
Xeomin (incobotulinumtoxinA) is sometimes called the “naked” neurotoxin because it is purified to remove the accessory proteins, leaving only the active molecule. The theoretical benefit is a lower chance of the body developing neutralizing antibodies — relevant for the small number of long-term patients who find a product gradually stops working for them.
Onset, spread, duration — honestly
- Onset. Dysport often shows first effects in two to three days; Botox and Xeomin more commonly take three to five. All three reach full effect around two weeks, which is why we book follow-ups at that mark, not earlier.
- Spread. Dysport diffuses the most, Xeomin and Botox stay more precise. Precision matters around the eyes, where you want the crow’s feet softened without touching the muscles that lift the brow.
- Duration. In head-to-head experience all three last about three to four months. Individual metabolism matters more than brand: athletes and fast metabolizers simply process any of them quicker.
Why “which one?” is the wrong first question
The better first question is “which injector?”. The differences between these products are smaller than the differences between providers. A skilled injector chooses the product after reading your face: muscle strength, brow position, how your skin creases in motion, what bothered you about past treatments.
There are also situations where the choice is genuinely made for you. If you have developed resistance to one formulation, switching to Xeomin’s purified form is a reasonable clinical move. If you are treating a broad forehead, your provider may reach for Dysport’s wider spread on purpose.
What a consultation should cover
Before anyone picks up a syringe, expect a review of your medical history — neuromuscular conditions, certain antibiotics, pregnancy and breastfeeding are all reasons to pause or decline treatment. Botulinum toxin is a prescription medication, and the FDA-approved labeling for each product carries a boxed warning about the risk of the toxin spreading beyond the treatment area. That risk is low at cosmetic doses, but it is exactly why wrinkle relaxers belong in a medical setting, not at a party.
The calm takeaway
If you are new to relaxers, any of the three, placed well, will likely make you happy. If you have a history with one and liked it, there is rarely a reason to switch. And if something about your last treatment felt off — too heavy a brow, too short a result — that is useful information, not a failure. Bring it to your consultation.
You can read more about each option on our pages for Botox, Dysport and Xeomin, or simply book a consultation and let us look at your face rather than a brochure.
Sources
- OnabotulinumtoxinA Injection — MedlinePlus medlineplus.gov
- Botulinum Toxin — American Society of Plastic Surgeons plasticsurgery.org