Botox vs Dysport vs Xeomin: What Actually Differs

What all three have in common

Botox, Dysport and Xeomin are all botulinum toxin type A. The active molecule is the same one, doing the same thing: blocking the release of acetylcholine at the nerve ending so the muscle contracts less forcefully. There is no version that works by a different mechanism, none that is "stronger" in a way that changes what is achievable, and none that is permanent.

All three are also produced by pharmaceutical manufacturers under the same category of regulatory oversight, and all three have long clinical track records in both cosmetic and medical use. The differences between them are real, but they sit in formulation, dosing units and diffusion — not in whether they work.

Where they differ from each other matters far less than two other things: whether the product is genuine and properly stored, and who is injecting it. Our Botox guide makes that point about technique in detail, and it holds regardless of which vial is on the tray.

The unit problem — why price per unit can mislead

This is the single most useful thing to understand, and it is the reason quoted prices can look wildly different for the same treatment.

A "unit" is defined per product, not per industry. A unit of Botox and a unit of Dysport are not the same amount of biological activity. The commonly used conversion is roughly 2.5 to 3 Dysport units for every 1 Botox unit. Xeomin, by contrast, is generally used at approximately a 1:1 ratio with Botox.

The consequence is immediate. A clinic quoting "$4 per unit" using Dysport and a clinic quoting "$9 per unit" using Botox may be charging almost exactly the same amount for the same result — because the Dysport treatment uses two and a half times as many units. A quote that names a price per unit without naming the brand is not a quote you can compare with anything. Ask for brand plus units, or ask for the total for the area, and our units by area guide will tell you whether the number is sensible.

This is also, quietly, how a low headline price is sometimes engineered. Nothing about it is illegal or even necessarily dishonest — but if you are comparing two quotes, you need the same denominator.

Where the brands genuinely differ

Dysport (abobotulinumtoxinA) has smaller molecular complexes and tends to spread a little more from the injection point. Many injectors like that in broad, flat areas such as the forehead, where even diffusion gives a smooth result with fewer injection points. The same property is a reason to be more careful near the eyebrow, where unintended spread is what causes a dropped brow or lid. Onset is often reported as slightly faster — two to three days rather than three to five.

Xeomin (incobotulinumtoxinA) is the "naked" toxin: it is purified so that the accessory complexing proteins are removed. The practical relevance is immunogenicity. A small number of patients who have been treated for years — particularly those receiving high therapeutic doses — develop antibodies and stop responding well. Xeomin is a rational choice for those patients, and a reasonable preference for anyone planning very long-term, high-dose treatment. It also tolerates room-temperature storage before reconstitution, which matters to clinics more than to patients.

Botox (onabotulinumtoxinA) is the oldest and most studied, with the largest body of clinical data across cosmetic and medical indications. That is a genuine advantage in the sense that its behaviour is extremely well characterized — which is why it remains the reference point everything else is converted against.

Newer entrants exist, including Jeuveau and the peptide-stabilized Daxxify, which is marketed on longer duration. Availability varies by country, and duration claims deserve the same scepticism as any other marketing claim until your own result confirms them. Our article on how long Botox lasts explains why duration varies more with dose, muscle and metabolism than with brand.

Does one last longer than the others?

For the three main brands, the honest answer is no, not meaningfully. Botox, Dysport and Xeomin all typically last three to four months in cosmetic facial use. Individual patients sometimes report doing better on one than another, and that is worth acting on — if you have a consistent personal experience, tell your injector and use it — but it is not a general property of the product.

What actually drives duration is more mundane: the dose used, the size and strength of the muscle treated, your metabolism, and how physically active you are. Under-dosing is by far the most common reason a result fades early, and switching brands will not fix a dose problem. People with fast metabolisms and heavy training habits metabolize it faster whichever vial it came from.

The one area where duration genuinely differs is use rather than brand: masseter treatment and treatment for sweating both last considerably longer than facial cosmetic use, because of dose and target tissue. Those are covered in our guides to masseter Botox and Botox for excessive sweating.

INVIMA, and what to verify in Colombia

For an international patient, the question that matters is not "which brand" but "is this product real, registered and properly handled". In Colombia the regulator is INVIMA, and legitimate botulinum toxin products carry an INVIMA registration. Genuine Botox, Dysport and Xeomin are all available through regulated channels in the country.

Three things are reasonable to ask for, and a good clinic will not blink at any of them:

• See the vial. You are entitled to see the box and vial, with its brand and batch, before it is reconstituted. A clinic that reconstitutes out of sight and cannot show you the packaging is asking for trust it has not earned.
• Ask which brand and how many units. Both belong on your quote and in your record, and they are what makes your treatment reproducible next year.
• Ask who is injecting. In Colombia, botulinum toxin is a medical act. The person holding the syringe should be a licensed physician, and you can ask about their training in aesthetic medicine specifically.

Be wary of prices far below the market. Toxin has a real wholesale cost, and a quote dramatically under everyone else's is a signal to ask harder questions about product origin and about who is performing the injection. The same logic we apply to filler brands and INVIMA registration applies here.

So which should you choose?

For most people, most of the time: whichever your physician uses well. An experienced injector who knows the diffusion behaviour, dilution and dosing of their product of choice will give you a better result with any of the three than an inexperienced one will give you with your preferred brand.

There are a few situations where the choice genuinely matters. If you have been treated for years and feel your response has faded despite adequate dosing, Xeomin is a reasonable thing to try. If you are treating a broad forehead and your injector prefers the diffusion characteristics of Dysport there, that is a considered clinical preference rather than a sales pitch. If you want the largest evidence base behind a therapeutic use, Botox has it.

What should not decide it is a price per unit quoted without a brand attached. At HealthBridge, treatment is applied by a licensed physician under Colombian regulations, our medical director Dra. Olga González is a specialist in aesthetic medicine, and quotes state the product and the number of units. If you are choosing a clinic from abroad and cannot walk in first, our guide to choosing a medical tourism facilitator covers what to verify before you fly and our price guide covers what a fair number looks like.