Since the differences in the neurotoxin are not the neurotoxin itself, the dose of the neurotoxin and the synthetic delivery method all differ.   Clients looking to achieve freezing of the muscle to reduce the appearance of forehead wrinkles, smile lines, or crow feet will most likely benefit from Botox, which uses neurotoxin and some synthetic proteins to achieve the desired result. Some clients may find better results with the use of Dysport since it also has the neurotoxin, but the neurotoxin itself is encased inside a protein, making the body break down the neurotoxin much slower since it takes time for the body to recognize the toxins' presence. Xeomin neurotoxin injections are completely different from the two aforementioned injections since only the neurotoxin is present in the injection and there is no use of synthetic proteins.   Determining the best neurotoxin for your appearance goals is important since each injection will create different effects in clients and your medical injector will be able to advise you on which method is going to be best in your circumstances. Your medical injector will also go over why you are looking to use the neurotoxin, as those looking for non-cosmetic injections for the treatment of excessive sweating, lazy eye or migraines will find that the best injection of neurotoxin will be Botox rather than the use of the other neurotoxin injections.