If you’re looking to save money on botulinum toxin, the best way to do it is by not shopping based on price alone. Often the cheapest treatment will actually be less effective than a more expensive one.
A lot of things go into determining how much a certain dose of botulinum toxin costs: what kind of product you have, where it comes from and how much time it takes for them to use it all up.
But, bear in mind, just because someone has a lower price than another practitioner, it doesn’t mean they aren’t using high-quality products. Price can often be dependent on the location you are seeking treatment in.