Matching Dysport concentration with Botox?

Matching concentrations is not needed to get good results. Each patient needs to be treated on an individual basis and their goals. I suggest you have a formal consultation with an experienced injector. Best wishes, Dr. ALDO 

Dysport and botox units cannot be interchanged. In studies is roughly 2-3:1 dysport:botox.  What matters is your doctor's injection technique. I like both toxins.  Best, Dr. Emer.

Both products come dry and are put into solution by the doctor.  Typically I dilute my Botox with either 2 or 3 ml of injectable saline.  That makes a solution that is either 50 units per ml or 33 units per ml of Botox.  The "equivalent" Dyport dilution would be 2 or 3 ml of injectable saline in one vial of Dysport.  In which case the finale concentration of Dysport would be either 150 units per ml or 100 units per ml of Dysport.  The clinical effect is that I am using a Dysport solution that has 3 times the number of units as I would use for Botox.  Despite all the whisper campaigns coming from these companies, clinically speaking the effects of Botox, Dysport, and Xeomin are all the same.  The onset and duration are clinically equivalent-end of story.  By the way, do not dream of doing your own treatment.  If you do, you will have a fool for a patient.

Dysport has 500 Ipsen units in 1 vial.Allergan botox has 100 botox units in 1 vial. 1 unit of Allergan Botox is as potent as 2.5-3units of Dysport Ipsen units. Therefore 1 vial of Dysport has the 500/2.5 = 200 equivalent Botox units (using the conversion of 2.5). If mixed with the same amount of normal saline per vial, Dysport has twice the number of units (200 Botox units) in the same volume as compared to Allergan Botox ( 100 Botox Units). Therefore the doctor who uses both would need to inject X Allergan Botox millilitres and X/2 Dysport millilitres of solution for the same potency. It's best to look for an experienced injector or trainer in Botulinium Toxin if you want to switch brands around. 

Thanks for your question. Because 1 unit of Botox is roughly equal to 2.5-3 units of Dysport, there is no sense in trying to match them unit for unit because that wouldn't mean anything. I hope this clarifies your question.