Botox vs Dysport: The Real Differences, and Which One to Ask For

Ask ten injectors whether Botox or Dysport is better and you will get ten versions of the same answer: it depends on the face, and they use both. That is not a dodge. The two products are the same class of drug, botulinum toxin type A, made by different companies with different formulations, and the differences between them are real but modest. This guide lays out what actually differs, where each one tends to win, and how to compare prices without getting fooled by unit counts.

What they have in common

Both Botox and Dysport work the same way. Injected into a muscle, they block the nerve signal that tells that muscle to contract. The muscle relaxes, the line it was carving into the skin softens, and over three to four months the effect wears off as the nerve reconnects. Both are approved for the frown lines between the brows, both are used off-label across the upper face and beyond, and both have decades of safety data behind them.

If you have had a good result with one, you will almost certainly get a good result with the other. The differences below are the tiebreakers, not the deciding factors.

Where they actually differ

	Botox	Dysport
Onset	4 to 7 days, full effect at 2 weeks	2 to 3 days, full effect at 1 to 2 weeks
Spread	Stays close to the injection point	Diffuses a little wider from each point
Best suited to	Small, precise areas: crow’s feet, lip flip, brow shaping, chin	Larger areas: forehead, the frown complex, masseters
Units per area	Fewer units	Roughly 2.5 to 3 Dysport units per Botox unit
Duration	3 to 4 months	3 to 4 months, occasionally slightly shorter
Feel	Some patients describe a slightly heavier feel	Some patients describe a softer, more natural feel

Onset. Dysport tends to start working a day or two sooner. If you have an event in ten days, that can matter. If you are on a regular schedule, it does not.

Spread. Dysport diffuses slightly more from each injection point. That is an advantage across a broad, flat area like the forehead, where a smoother blend with fewer injection points is the goal. It is a disadvantage next to a muscle you do not want to touch, like the muscles that lift the brow or the smile, which is why many injectors prefer Botox around the eyes, for a lip flip, and for fine brow work.

Units. This is where people get confused comparing prices. Dysport units are smaller, so a treatment needs roughly two and a half to three times as many. Forty Botox units and a hundred Dysport units are comparable doses. A clinic charging four dollars per Dysport unit and twelve per Botox unit is charging the same price per treatment.

Which should you ask for

For most first-time patients treating the forehead and frown lines, either product works well and the injector’s skill matters far more than the label. Where the choice tilts:

• Ask for Dysport if you want faster onset, if you are treating a broad forehead, or if you have found Botox feels heavy or slightly frozen on you.
• Ask for Botox if you are treating small, precise areas, if you want minimal risk of spread near the eyes or smile, or if you have had consistent, predictable results with it and see no reason to change.
• Try the other if one has started wearing off faster than it used to. A small number of people develop reduced response to one formulation over years; switching sometimes restores it.

Some patients also report that one product simply suits them better, lasting longer or feeling more natural, without a clear reason. That is a legitimate basis for choosing, and a good injector will let you compare across two visits.

What each one costs

Pricing is per unit or per area, and the per-unit number alone tells you nothing until you know the units planned.

Area	Typical Botox units	Typical Dysport units	Typical treatment cost
Frown lines	20 to 25	50 to 60	$250 to $450
Forehead	10 to 20	30 to 50	$150 to $350
Crow’s feet, both sides	12 to 24	30 to 60	$200 to $400
Upper face, all three	40 to 60	100 to 150	$500 to $900
Masseters, both sides	40 to 60	100 to 150	$500 to $900

Costs vary by city and by injector; our Botox cost by city guide breaks down the regional spread. The useful comparison is total treatment cost for the same result, and it is usually similar. When one is noticeably cheaper at a given clinic, it is often because that clinic buys more of it, not because the product is inferior.

What the first two weeks look like with either

Day one you will see nothing, and that is normal. Both products need time to bind at the nerve endings. With Dysport, the first softening usually shows around day two or three; with Botox, closer to day four or five. Full effect arrives at the two-week mark for both, which is why reputable injectors book a two-week check rather than adjusting anything sooner. Judging a result at day five and asking for more units is the most common way people end up over-treated.

A few things are worth knowing in that window. Mild bruising at an injection point happens occasionally with either product and fades within a week; arnica helps, and so does skipping alcohol and blood thinners like ibuprofen the day before. A dull headache on day one affects a small number of people and passes. Keep your head upright for four hours after treatment and skip the gym for the day so the product stays where it was placed. If you notice a heavy brow or an eyelid that sits lower than the other, tell the injector at the two-week check; both are uncommon, both are temporary, and both are usually the result of placement rather than product.

By week two you should have the result you paid for. From there, the clock runs at roughly the same pace for both: most people notice movement returning at around three months and book their next appointment at three to four.

The part that matters more than the brand

Three things move your result more than the Botox-or-Dysport choice: who injects, how much, and where. An experienced injector assessing how your muscles move, choosing a dose that softens rather than freezes, and placing it where your anatomy needs it produces a natural result with either product. An inexperienced one produces a heavy brow, a Spock eyebrow, or an uneven smile with either product too.

When you book, ask how many treatments the injector does a month, ask to see results at two weeks on faces like yours, and ask what dose they are planning and why. Then ask which product they prefer for your specific areas. The answer, and the reasoning behind it, tells you more than any comparison article.

Compare Botox providers and Dysport providers by city, with pricing and reviews, and request a consultation from the clinic profile.