Neuromodulators · Side by Side

Botox vs. Dysport.

Two FDA-approved neuromodulators, each with a slightly different personality. Our board-certified dermatologists in South Tampa help you decide based on how quickly you want results, how long you want them to last, and how your body has responded to injections in the past.

At a glance

Both Botox and Dysport soften dynamic lines by temporarily relaxing the underlying muscle. Dysport tends to onset the fastest. Botox is the most studied and remains the default in most hands. At Modern Dermatology in South Tampa, the injector and the plan matter more than the brand — we tailor the neuromodulator to the face.

Side by side

A quick comparison.

Use this table as a first pass. Anatomy, medical history, and goals change the calculus — which is why a short consultation is always the next step.

Botox vs. Dysport.
Attribute	Botox	Dysport
Active ingredient	onabotulinumtoxinA	abobotulinumtoxinA
Typical onset	3–7 days	1–3 days
Full effect	10–14 days	7–14 days
Typical duration	3–4 months	3–4 months
Dosing unit	Botox units	Dysport units (roughly 2.5–3x Botox)
Formulation	Albumin carrier	Albumin carrier
Often chosen for	Established, predictable baseline	Faster onset; broader forehead coverage
First-time patient?	Most common starting point	Reasonable starting point
Cost range	Per-unit pricing, quoted at consult	Per-unit pricing (units differ from Botox)

The procedures

A closer look.

Botox

Botox (onabotulinumtoxinA) is the most established neuromodulator on the market and the product most patients recognize by name. It has the deepest published safety and efficacy record, consistent and predictable dosing units, and tends to behave exactly the way an experienced injector plans. For first-time patients — and for patients who want a result that looks like their face on a very good day — Botox remains our most common choice at Modern Dermatology. Treatment takes fifteen minutes, and results typically take several days to settle in.

Dysport

Dysport (abobotulinumtoxinA) is chemically similar to Botox but formulated slightly differently. The most commonly discussed practical difference is onset — many patients feel Dysport begin to work faster, sometimes within one to three days, which can be useful before a specific event. It diffuses a little more broadly in tissue, which can be an advantage for softening larger areas like the forehead and a disadvantage for very focal work near the eyes. Our injectors will often recommend Dysport for patients who want a gentler, earlier-appearing result.

Dysport is part of our neuromodulator menu →

Which is right for you?

A short decision guide.

These are general starting points. The right plan is the one your dermatologist maps to your specific skin, history, and goals.

It's your first time and you want something predictable: Botox. It is the most studied, the most consistent, and the easiest to fine-tune at a two-week follow-up.

You have an event in two weeks and want fast onset: Dysport. Patients often feel the effect sooner, and the broader diffusion pattern is well suited to the forehead.

You want to treat excessive underarm sweating: Botox is the FDA-approved option for hyperhidrosis and our default for that use.

Common questions

Frequently asked.

Which lasts the longest?

Botox and Dysport both average three to four months. Individual results vary based on anatomy, dose, and how actively the treated muscles move.

Which works the fastest?

Dysport tends to show earlier onset than Botox. Patients often feel Dysport beginning to work within one to three days. Full effect for both is usually at the ten- to fourteen-day mark.

Are the costs different?

Botox and Dysport are typically billed per unit — though Dysport units are not equivalent to Botox units, so the total unit count for the same area is different. Transparent pricing is reviewed at your consultation.

Can you switch between them?

Yes. Many patients use different products over time depending on goals, life events, and how their face has responded in the past. A thoughtful injector will keep notes and recalibrate as you go.

Which is safer?

Both are FDA-approved with well-established safety profiles in the hands of trained injectors. Risks are similar — bruising, asymmetry, and temporary heaviness are the most common. Choose the injector before you choose the brand.

Keep exploring.

Botox & Neuromodulators

Our neuromodulator program, philosophy, and pricing.

Dermal Fillers

Often paired with neuromodulators for structural volume.

Cosmetic Concierge

A short quiz to match aesthetic goals with the right starting treatment.

Still weighing options?

A thirty-minute consultation with our team almost always resolves the question. Direct-care model, no rushed visits.

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