Quick Summary
- Botox and Dysport are both botulinum toxin type A injectables that temporarily relax the muscles causing dynamic wrinkles (frown lines, crow's feet, forehead lines).
- Dysport tends to have a slightly faster onset (often noticeable within 2-3 days vs. 3-7 for Botox) and a formulation that can spread a bit more, which some injectors prefer for larger areas like the forehead.
- Botox has a longer track record and is often preferred for more precise, smaller-area treatment, like around the eyes.
- Dosing units aren't interchangeable between the two — a "unit" of Dysport isn't equivalent to a unit of Botox, so cost comparisons per unit can be misleading.
- Both last roughly 3-4 months on average, and results are essentially comparable for most patients; the right choice often comes down to injector experience and your specific treatment goals.
Botox and Dysport are the two most recognized names in the neuromodulator category, and both work through the same basic mechanism — temporarily blocking nerve signals to targeted facial muscles, softening the dynamic wrinkles caused by repeated expression. The differences between them are real, but subtler than the marketing sometimes suggests.
What Botox Is
Botox (onabotulinumtoxinA) was the first botulinum toxin approved for cosmetic use and remains the most widely recognized brand. It's precise and well-suited for smaller, targeted areas — crow's feet, the "elevens" between the brows, and fine forehead lines. Results typically become visible within 3-7 days and last around 3-4 months for most patients.
What Dysport Is
Dysport (abobotulinumtoxinA) uses a different formulation of botulinum toxin that tends to diffuse slightly more in the surrounding tissue. This can make it a good fit for larger treatment areas like the forehead, where an injector wants smoother, more even coverage. Many patients notice results a bit faster than Botox — sometimes within 2-3 days.
Key Differences at a Glance
| Feature | Botox | Dysport |
|---|---|---|
| Onset | Typically 3-7 days | Often 2-3 days |
| Spread pattern | More concentrated, precise | Diffuses slightly more — good for larger areas |
| Best suited for | Smaller, precise areas (eyes, glabella) | Larger areas (forehead) needing even coverage |
| Duration | About 3-4 months | About 3-4 months |
| Dosing units | Not directly comparable between products | Not directly comparable between products |
Which One Should You Choose?
For most patients, the practical difference between Botox and Dysport is small, and both deliver comparable, natural-looking results in experienced hands. The better predictor of your outcome is your injector's technique and experience with facial anatomy, not which brand is used. During a consultation, your dermatologist can recommend whichever product best fits your treatment area, goals, and any prior experience with either product.
Curious which injectable is right for your goals?
Our board-certified dermatologists see patients at our Burien and Bellevue offices — same-week appointments are often available.
Schedule a ConsultationWhat to Expect at Your Consultation
Most patients come in 3-4 times per year to maintain results with either product. Your dermatologist will assess your facial muscle patterns, discuss your goals, and recommend a personalized treatment plan — including which product and dosing makes sense for you.