Botox, Dysport Or Another Brand: Why A Unit Of One Is Not A Unit Of Another
Written and medically reviewed by Dr. Ashutosh Shah, M.B., M.S., M.Ch., D.N.B., plastic surgeon at Elegance Clinic.
Botox and Dysport are both botulinum toxin type A, but their units are measured differently, so one unit of Botox is roughly equal to 2.5 to 3 units of Dysport. That is why a quote of 50 units means nothing until you know the brand. Both soften expression lines well; what matters is the doctor's dose plan.
When people compare botox vs dysport, they often compare the number of units and the price per unit. That comparison is misleading, because each brand measures its units in its own way. This guide explains why units differ, how the brands compare, and how to compare two clinics' quotes fairly.
Why are units not the same across brands?
Units are not the same across brands because each manufacturer measures the strength of its product with its own laboratory test. A unit is a measure of biological activity, not weight, and each company's test gives a different result for the same amount of toxin activity.
This is stated clearly in the official product information. The Dysport prescribing information says its units are specific to the product and cannot be converted into units of any other botulinum toxin, and Botox labelling says the same about Botox units.
In practice, doctors use approximate ratios to plan treatment. A review of conversion ratios in clinical practice found that about 1 unit of Botox corresponds to no more than 3 units of Dysport, and most clinicians work in the range of 2.5 to 3. This is the basis of any dysport to botox unit conversion, but it is a guide, not an exact formula.
How do Botox and Dysport compare in onset and spread?
In a botox vs dysport comparison, both give similar results for frown lines, forehead lines and crow's feet when dosed correctly. Dysport may start working a little sooner in some people, and some doctors find it spreads slightly wider from the injection point.
- Onset: Dysport often shows early effect in two to three days, Botox in three to five days. Both reach full effect in about two weeks.
- Spread: a slightly wider spread can suit broad areas like the forehead, while precise areas such as around the brows need careful placement with either brand.
- Duration: both usually last about three to four months, depending on dose, muscle strength and metabolism.
Is Botox or Dysport better for forehead lines? Neither is clearly better. The result depends far more on the doctor's assessment, dose and injection pattern than on the brand.
Which brands are available to doctors in India?
Botox and Dysport are the brands most commonly used by doctors in India for cosmetic treatment of wrinkles, and other brands may also be available. Availability changes over time, so the more useful question is not which botox brand is used in India generally, but which brand your clinic is using for you.
| Brand | Toxin type | Approximate unit equivalence to Botox | Typical onset | Notes on spread | How to verify the vial |
|---|---|---|---|---|---|
| Botox | OnabotulinumtoxinA | Reference (1 unit) | 3 to 5 days, full effect around 2 weeks | Precise, well-defined spread | Sealed vial, brand name, batch number and expiry date shown before use |
| Dysport | AbobotulinumtoxinA | About 2.5 to 3 units per 1 Botox unit | 2 to 3 days, full effect around 2 weeks | May spread slightly wider | Sealed vial, brand name, batch number and expiry date shown before use |
| Xeomin | IncobotulinumtoxinA | About 1 unit per 1 Botox unit | Similar to Botox | Similar to Botox | Availability varies, so confirm the brand and check the vial label |
Whichever brand is used, ask for a sealed vial that is opened in front of you, and check that the brand name, batch number and expiry date are visible.
How should you compare two clinics' quotes fairly?
Compare quotes by brand plus number of units plus treatment areas, never by units alone. A quote of 50 units of Dysport and a quote of 20 units of Botox may be roughly similar treatments, even though the numbers look very different.
- Ask for the brand. A unit count without a brand cannot be compared.
- Ask for the total units per area. Forehead, frown lines and crow's feet each need their own dose.
- Convert carefully. Divide Dysport units by about 2.5 to 3 to get an approximate Botox equivalent.
- Compare the total price, not the price per unit, since Dysport units are usually priced lower but more are needed.
- Ask about review visits and whether a touch-up is included.
Why do different clinics quote different numbers of Botox units? Mostly because of different brands, different areas included, and different judgements about how strong your muscles are. A doctor who explains all three is giving you a quote you can trust.
Can you switch brands between sessions?
Yes, you can switch brands between sessions, as long as the doctor recalculates the dose for the new brand rather than copying the old unit number. Using the same number of units across brands would lead to underdosing or overdosing.
Switching can be helpful in the rare case where a person stops responding to one brand. Keep a record of the brand, units and areas from each session so your doctor can plan accurately.
Looking for Dysport in Surat? What to ask before your session
Before any toxin treatment, ask which brand will be used, how many units per area, and to see the sealed vial. At Elegance Clinic, toxin treatments are planned and supervised by Dr. Ashutosh Shah, with the brand, units and areas recorded at every session and a review at about two weeks. Concerns about botox results natural or fake usually come from overdosing or poor placement, not from the brand itself. A measured dose keeps expressions natural.
Our pages on Botox treatments, first-time Botox and Botox FAQs explain the process, and our clinic certificates are available to view.
If you are weighing botox vs dysport and want a clear, brand-specific plan, call Elegance Clinic on +91 83205 00350 to book a consultation with Dr. Ashutosh Shah.
Medical disclaimer: This article is for general education and is not a substitute for a professional consultation. Doses and results vary between individuals. Please consult Dr. Ashutosh Shah or a qualified doctor about your own treatment.
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