Botox, Dysport, and Daxxify all soften expression lines by temporarily reducing targeted muscle activity. So why choose one over another?
Their formulations, dosing, and clinical evidence differ. Your previous experience, facial anatomy, treatment area, and preferences help determine which option makes sense for you.
At Modern Aesthetics in San Jose, I offer all three and discuss the choice as part of your treatment plan.
What they have in common
These treatments inhibit the release of acetylcholine, a chemical messenger that helps muscles contract. Reducing selected muscle activity can soften the appearance of lines associated with expression.
None works instantly, and none produces the same result in every patient. Dose and placement matter alongside product selection.
They also do not replace filler for volume loss or resurfacing for certain skin-texture concerns.
Botox Cosmetic
Botox Cosmetic contains onabotulinumtoxinA and has a long history of cosmetic use.
For frown lines, manufacturer information describes results that may last up to four months. Individual response varies, and the appropriate time to reassess depends on the treatment and your goals.
If you are happy with your results and tolerating treatment well, there may be no reason to change products simply because another option is receiving attention.
Dysport
Dysport contains abobotulinumtoxinA. Manufacturer information describes an onset typically within two to three days and results that may last up to five months for glabellar lines.
That does not guarantee faster onset or longer duration for every patient. Findings from separate product studies are not the same as a direct comparison under identical conditions.
Dysport is sometimes described as spreading more widely. However, the treatment’s effect depends on dose, injection volume, placement, and anatomy. A brand alone does not guarantee smoother results or more natural movement.
Daxxify
Daxxify contains daxibotulinumtoxinA and uses a peptide-containing formulation rather than human serum albumin as its stabilizer.
In its pivotal glabellar-line studies, the median duration of maintaining no or mild frown lines was approximately 24 weeks. This means some participants maintained that response longer and others for less time; it is not a guarantee of six months without movement.
Those findings apply to the studied treatment between the eyebrows. They should not automatically be extended to the forehead, crow’s feet, or other off-label areas.
Units are not interchangeable
A unit of one botulinum toxin product is not equivalent to a unit of another. Comparing price per unit without understanding the proposed product and dose can be misleading.
Before treatment, I explain the selected product, treatment plan, and total cost.
How I help you choose
I consider your muscle activity, facial balance, previous response, desired degree of movement, and treatment history. We also discuss your timeline and what maintenance you are comfortable with.
A shorter-than-expected result deserves assessment rather than an automatic assumption that you metabolize every toxin unusually quickly. Product, dose, placement, treatment area, and expectations all belong in that conversation.
Safety and follow-up
All three products require medical screening and carry potential risks, including bruising, headache, asymmetry, and eyelid or brow drooping. Rare symptoms involving difficulty breathing, swallowing, or speaking require immediate medical attention.
Follow-up and retreatment should reflect your response and the product’s prescribing information rather than one fixed schedule for everyone.
Schedule a consultation at Modern Aesthetics to discuss which option fits your face and goals.
Updated October 23, 2026.